Prusa Mini first prints (and troubleshooting) 

This is a not a review, but please read the description to hear some of my thoughts on the pros and cons of this printer. Also, an addendum to lending the 3D printer to the student: He still managed to clog it, after changing from ASA to PLA but only preheating to PLA temps. The PTFE guide tube to the hot end was completely clogged and needed to be drilled out to be removed. Beyond that, he was able to quickly get up to speed and produce the required parts, even designing some add on parts to help interface the printer with a filament dry box.

Thank you for not using "cinematic" pretty shots with only exotic filaments and perfect lighting that would just try to sell the product. a lot of reviews these days are more like entertainment then helpful!

Hello, I have just received my Prusa Mini on the 3rd Aug 2020. This is my first 3d printer, and I have never used one before. My first print was the benchy boat from the USB stick. It came out perfect. Stayed attached to the smooth steel plate, there is absolutely no stringing, and no wobbly bits in the model. In my opinion looks a lot better than a lot of models I have seen on online. The surface is really quite smooth. I used the supplied filament from Prusa. I then printed an item from Thingiverse. I loaded the STL into the Prusa slicer, and printed using the default settings, in simple mode. Again, it came out perfect, better than the picture the designer posted on the Thingiverse website. I had to wait from April when I ordered, to when I got the printer. The paperwork says it was packed on the 27th July 2020. I am very happy with the results so far.

Nicely done man. I’m going to try using a longer ptfe tube on mine. I’m honestly pretty disappointed with my mini at this point. Just playing the waiting game on some official updates on fixes for filament grinding, my gantry isn’t level, and the constant print clogging

Michael has become exceeding proficient in his delivery of bad news.

Hello all...wanted to report that I received my mini finally at the end of april and have just started using it in the last week. I'm relieved to report that I have not had issues with the hot end. I have seen the parts for extending the x-axis wiring on thingiverse; apparently Prusa noticed this problem as well because there is plenty of slack there on the one I received. Not sure whether the electronics cover parts were redesigned, but mine went together without too much of a fight. This is my first printer, but as far as I can tell I'm getting quality prints right out of the box. Hopefully that means anyone getting one from here on will have the same experience I'm having. I'm curious: has anyone has determined a way to reduce stringing? I tried playing with retraction and wiping to no avail. I felt like I took the retraction far enough to cause under-extrusion and still there was stringing. It is very minor, wispy stuff that almost just wipes off so it isn't bothering me too much. That said, I'm concerned that it may not bode well for the time when I try some other types of filament. For anyone still waiting for a mini, I hope that my happy experience is the one you get as well.

Thank you, thank you, thank you for the first “real” test of the Mini. This is very concerning for me, who ordered a Mini for delivery in mid-April. I recognize that despite these machines moving into the “mainstream” in recent years they are not yet appliances. That said, I have been spending a fair amount of time getting a DIY i3 clone design made through a maker lab group build project up and running (still tuning), including replacing the original 5-year old board and (just yesterday) replacing a heating element that stopped working all of a sudden. I have been looking forward to something that would be a lot closer to “plug and play.” Clearly, as of early March 2020, this is not it. And, this isn’t a local PBS channel - this is a major league YT channel sounding the alarm. Why hasn’t Prusa weighed in? I’m not being a hater by any means - I’ve chatted with a Prusa customer service rep who spent about a half hour with me back in December when I was weighing this purchase (which I had accidentally ordered twice - hence my outreach) and she was incredibly helpful. I could spend the extra $$ on a Mk III S but felt it was overkill for my (admittedly hobby-oriented) needs. I feel like this well-regarded channel (and it’s supporters) deserve a full “confession” from Prusa on how this adventure has gone so far and share it’s plans for taking care of us “first adopters”, if you will. I don’t want to tell my beloved spouse that I purchased a first-gen product and it had hiccups (I will never hear the end of it) :) thanks again for bringing this out into the open. And, btw Michael, you have a new Patreon supporter.

I experienced the same jams, dug into forums and found out the extruder ptfe tube was actually not too small, but the extruder itself was about 3 mm lower than it should. With a cold nozzle, I unscrewed the 3 lateral screws and pushed the extruder up then tighten back the screws. Also had to clean the remainents of plastic insight the extruder with a cold pull. After that it printed beautifully. Printer came on the 27th of feb, so probably the same batch as yours.

I got my Mini 3 weeks ago. I also had problems with frequent jams. I also had problems when unloading the filament due to the blob on the end being too large to fit through the ptfe tube. Increasing the length of the hotend ptfe tube fixed both problems. The prints I am getting are better than my MK3S’. I did print a different electronics cover and strain relief for the X axis, both found on thingiverse. I also printed a different spool holder that did not have to be adjusted whenever you change the size of your spools. I did wish it came with an all metal hotend that did not require a special nozzle. I do like the printer and I have gotten some excellent prints from it.

It’s a premium product at a premium price. I was thinking of buying one but want all the bugs to be fixed first

I must have ordered my prusa mini the same time as you, since I got it last week also. I've been printing for a week straight, 12-14 hours a day without any issues or jams (knock on wood). I haven't had a single print come unstuck during printing, but I've only used the smooth pei sheet. I'm not sure about the textured sheet. Perhaps I'm the exception, but I've had great luck with my mini so far

I sent my back, too many problems, spent 6 hours with Prusa support but was not able to resolve the problems. I have a Prusa MK3s that I assembled from the kit; had some issues at first but were easy to resolve and now printing nicely. I was expecting the same quality of print from the Mini but just couldn't get there, so back to the factory it went.

I would love to see a video on solving the stringing issue (what you try, what worked, what didn't, etc...)

I want a Prusa Mini but im going to wait until they fix all the problems because I see a lot of people reviewing the Mini and all of them have some type of problems with the Mini. I prefer and wait until september or latest to get a Mini and I hope by then all the problems are fixed. I really want a combo of Prusa Mini, Artillery x1 and a Resin printer like the Eleego Mars or something like that.

Thank you for the excellent (not a) review. While I understand the stated caveats, I can't overstate how disappointed I am with the results. I'm really still rather a noob at 3D printing but I've always been under the impression that if you don't mind a little tinkering and hands on you got a Creality CR10 or Ender 3 and if you wanted a printer that "just works" (tm) you paid a not-insignificant-amount more and got a Prusa. I don't want to be a fanboy for any particular company. At the end of the day I just want a good printer regardless of who makes it. I can understand minor bugs in the firmware or unexpected part failures in a first revision but basic assembly issues like gaps in the ptfe/nozzle assembly causing clogs seem pretty egregious to me. It's something I would expect from some no-name, generic $100 printer from a company you've never heard of in Kazakhstan.

My mini had several of the same issues, and I was ready to send it back. I did spend an hour with Prusa support and was able to adjust the extrusion PFE tube to a perfect fit. Now it prints with the same quality as the MK3S but much faster! How could it be faster? Less print head mass to move around. Love it.

Just a heads up, the tiles you printed were two different versions, the “play” ones are supposed to be looser than the regular tiles.

I was a Printrbot guy for many years, and I finally got the pleasure of putting together a MK3S kit for a student lab I work with last year. I am absolutely certain that if PB's out-of-the-box documentation were anywhere near as good as Prusa's, PB would still be in business. I am looking to get a Mini down the road, perhaps in 6-8 months. Other Prusas have also had growing pains in the past, so I'm reasonably confident that it'll be a much more solid platform a little ways down the road. I wouldn't be opposed to getting a MK3S for myself, but the price point of the Mini is what really sells it for me. I'm poor, lol.

I really don't know which printer buy (again). In the past I wasted money on a not working printer. Prusa are good but price is too high plus you can't get these issues. Creality needs upgrade and seems you have to be lucky. I can't pay too much for a good printer as Ultimaker and Makerbot or other. Many online advice flashforge adventurer 3 but I'm not convinced from user reviews... What printer would advice me for about 500€? I know perfect printer doesn't exist for 500€ but my first printer was a disaster (hundreds issues) payed around 1500€ in 2011... spent more money on it and never worked properly so I sold it for 1/10 of what I payed.

Not surpring that a new printer has some issues but alot of them should have been easy to spot and solve before being shipped to the customer. I personally cant justify the price for its build volume and features, not to mention alot of its parts are 3D printed.(Edit: I would get the Kingroon printer for 150 USD, has the same printing area) Again i think people are getting too hypey on the Prusa name and people too quickly forget the issues previous Prusa printers had at launch.

Best feature of the Prusa: mandatory Haribo!

Nice overview, Michael! I don't have one yet, but I have two MK3S printers. I plan on picking a mini up for my birthday in April. I've seen people have problems right out of the box but I am giving prusa the benefit of a doubt because it is a brand new product and they definitely have some issues they need to iron out. The MK3 was the same way. I'm very excited to see the Prusa XL that they have in the works.

I got my Mini a few days before you and I suffered the exact same issue. I managed to fix the clogging issue by loosening the three grub screws holding the heat break and simply sliding the whole heat block assembly up until the heat break was firmly seated against the PTFE tube. It was about 3mm too low and after adjusting it I had to re-adjust the height of the probe. It printed great after that. Ultimately I was able to handle it because I've been printing for quite a few years and I understood what was happening, but I feel bad for all of those people who have had to deal with customer support trying to figure out what is wrong with their printer that is supposed to work out of the box.

Looks like Prusa should have stuck with E3D for their hotend designs.

I'm a bit disappointed. I wasn't expecting one had to fix a brand new printer by removing the extruder when I recommended the Prusa Mini to my friends. In fact, I don't think I'll be buying one after seeing several youtubers reporting so many issues like that.

I also had a similar experience with prints not sticking to my textured PEI sheet. What ended up working for me was cleaning the sheet with warm water and dish washing soap by hand, drying the sheet, and then going over the sheet with a little bit of IPA. I've had good success printing with Yoyi branded PETG on the textured sheet so far! After the bed cools, the print released without having to remove the sheet. My Z-offset hovers around -1.080 or so, which is roughly 0.3mm lower than my smooth PEI sheet. While I haven't come across any major clogs or extrusion problems yet, I re-seated the hotend PTFE tube as shown here: manual.prusa3d.com/Guide/How+to+change+a+hotend+PTFE+tube+-+MINI/1505?lang=en during my initial build of the printer. Some users on the Prusa forums reported that they received a shorter PTFE tube inside the hotend than specified ~43.5mm. Additionally, as a sanity check, I also adjusted my MINDA probe height since I read that there may or may not be issues with the height due to shipping. This was done by moving the nozzle until it just touches the build plate, loosening the screw holding the probe to the hotend, placing an old credit card that's ~0.8mm thick under the probe, and adjusting the height until just touches the credit card. I followed Step 29 of Prusa's MINDA changing guide here: manual.prusa3d.com/Guide/How+to+change+a+M.I.N.D.A.+sensor+-+MINI/1514?lang=en#s41055 I hope you can resolve any further issues you may have with the printer, Michael!

I'm not in the market for another printer, but I do want to commend you on buying this with your own money. That makes being honest in a review/first impressions much easier and more believable.

To much of a headache for me, your a lot farther ahead in the tech world than me and if you had these kind of headaches it would be nightmare for me. All move on to the next one. Thanks

nice video! Did you know why the gummy bear brand is called "Haribo"? The founders name is *Ha* ns *Ri* egel and the company is located in *Bo* nn , Germany source: de.wikipedia.org/wiki/Haribo#Geschichte cheers!

I experienced the same issue with the jamming at the hot end. There are 3 grub screws that can be loosened and allow you to push the assembly up reducing the amount of space inside of the hot end and allowing for the stock PTFE tube to fit. I agree that I was not expecting to have to deal with an issue like that. Once I got it running again it was going well. My stringing is less than yours, and I just started to tune that away.

Love your reviews Michael, they show that your thoughts are YOURS. 👍🏻. Just another overhyped Prusa product IMO. The MK3 was the least favorite, least reliable printer I’ve owned. I’m aware my results may not be the norm and am glad others have good experiences with theirs.

I'm not expecting anything close to the level of reliably of the mk3 from this new Mini. It is a first release after all and the world's doing QA testing for Prusa. It'll eventually come around, just not yet and shouldn't be used by those thinking it is a reliable, trouble free product.

I'm tired of how every printer on the market seems to come out half-baked and requires fixes from the user.

Is it just me, but print quality of the parts of the mini are hmmmm... I print better with my ender 3. The display is very nice.

the stringing on the vampire castle actually looks pretty cool lol

I've had my Prusa Mini for almost a month and it's a fantastic printer. Very high quality. Nearly silent. Large print volume compared to the size of the printer. And very reliable. I ran a detailed print that took six days and it completed it without any issues. I highly recommend checking out the Prusa forums to see what other users are experiencing. This link is to the "Prusa Mini wait thread" where we were chatting while waiting for our printers to arrive, and have continued to chat since we received them. forum.prusaprinters.org/forum/general-discussion-announcements-and-releases/unofficial-prusa-mini-wait-thread/paged/120/#post-195726

Wow! So this is the Prusa experiment to emulate the stock Ender 3?! I just replaced my LAST PTFE style hot end with a MicroSwiss on my Ender 3. My Hypercube will get one now also. All Metal is the only way to go.

Same here with both of my Minis - greatly improved with a slightly longer length of Capricorn tubing inside the hotend. I’m confident that it’ll mature into a fine printer over time. But they’re not currently as inspiring of confidence as my Mk3s...

Luckily the ptfe tube issue is easy to fix at the prusa factory. Great review, thanks 👍

Overpriced and those 3d printed parts they make them with look horrible. For that price they should be injection molded. Sorry but i am not a prusa fan, they look like homemade printers.

Mine came today. Like you, I had high expectations for her - at least because of the good experience with Mk3S MMU2S. And to put it mildly, the first experiences are disappointing. Some of the printed elements were already broken in the box, the first few self-tests were unsuccessful just for the next one to go, for no apparent reason. This is still to be swallowed but the clogged nozzle in such equipment is a total failure. Until now, even one printout failed. Those parts that somehow printed had massive vertical banding. I guess I have to apologize to the Ender.

Love my Mini, no problems so far! over 40hrs on the printer so far

I'm sure they will work many of the issues out but I would be a little disappointed too if I were you. Creality needs to come out with an Ender 3 with ABL. Sell it for 300 and there would be NO reason to go with the Prusa. I know many people who have bought Ender 3s and are getting much better results right out of the box.

My mini is going back for warranty, shame they feel a bit rushed

you should do a video on ; whats not perfect about the prusa printers.. and how to fix that.. send it to joel for the next iteration of prusa

I have had a mini since the first batch of deliveries. After the list of things that were assembled wrong at the factory were fixed, I have a printer which exceeds my MK3s in quality and have not seen a single string :) I had the over tightened idler and also the problems in the hot end though mine was solved by simply moving the hotend firmly up against the ptfe tube. I have also had the MINDA probe fail which to their credit, Prusa provided a replacement within two days. I love this little printer now but I sure wish it had been delivered as a kit.

I just got my mini and straight from the off the extruder has been a nightmare. Just running my first print with heat break pushed all the way up and bowden fitting tightened all the way down. Wish I’d bought something different now. Like 2 or 3 enders for the money, or another QQS Pro.

I have the Prusa i3 mk3, and I've loved using it, it's been an amazing printer, but when I heard about the Prusa mini, I kind of wanted to sell my i3 mk3, and grab the mini in its place. However, after watching this video, I think I'm going to stick to the i3 mk3 at least until all of these issues are fixed. One of the things I loved about the i3 mk3 is that It's never given me issues (not counting print failures due to something stupid I did). I just don't think I can trade the mk3 for the mini if the mini is going to have issues. Also, my printer is still in great shape, do you think to sell a Prusa i3 mk3 assembled, in great shape is worth $750, if not, what would you price it at? (just in case I later do decide to sell it)

Every prusa mini video I have watched the printer has failed out of the box, I really wanted to buy one but i'm gonna stick to my ender 3 now.

Hello Michael, this may help on how to tighten hotend: manual.prusa3d.com/Guide/How+to+change+a+hotend+PTFE+tube+-+MINI/1505#s40951 Step 9 I have MINI, from first batch sent before Christmas (which had its own set problems). Print quality with PLA is subjectively better than from MK3S kit - I don't see major artifacts and surfaces look cleaner. I had some major jam with PETG and had to clean both hotend and extruder. While doing that, I effed up geometry of my printer since the attachement of XZ is kind of wonky through that plastic box, I had loose screws tiny bit not to have it skewed, and then I had to make it all perpendicular again. It does not have support for as many materials as MK3S, MINDA does not have thermistor like PINDA v2, and madamme sometimes has its quirks. But it's cute little beast. I am happy with it. Edit: regarding textured sheet - wash it thoroughly with dish soap (preferably ordinary one with less additives for whatever), don't use your regular sponge but rather new clean brush. Rinse with generous amount of hot water, dry with clean paper towels and don't touch it from then on. You can let it dry on heatbed to be sure all water is gone. Finally clean with IPA and you should be good to go. It's recommended way to get PLA stick to it.

Just got my mini and it isn’t great, the test prints nearly work but not quite. Bed adhesion for the whistle was a joke. Unloading the filament didn’t work. However as a TOTAL newbie I am learning a lot and fast. It’s certainly not plug and play.

Thanks for keeping it real! It matches my expectations of Prusa QA. I have an MK3 where the fan pulses below 100%, and it was never fixed. Otherwise a pretty good printer.

88's Club! Didn't know you were a Mighty Car Mods fan. Love it!

I was kinda lucky with my mini, i got waaaay better prints for mine... It prints so smooth that parts look almost "production like". My only complaint was the assembly... I couldn't square the two pieces and it took 3 hours only to attach them together since one of the screw didn't want to align! Playing around with those 3 screws helped a lot and now it shouls be squared correctly

A great and honest review. Thank you.

Great information. Looking to get into 3D printing as a project source for my little nerdlet. She can't stop asking me to get one. I was looking at prusa but still not certain on a good first printer.

Hi I'm planning to get my 1st 3d printer but kinda torn between Prusa and Creality Ender 5.... any advice?

Very nice overview. I was bit disappointed to see the under extrusion issue that you had out of the box. Looks like Prusa is having some startup manufacturing issues with the mini.The print quality was a bit underwhelming even after you fixed extruder issue. I like that X3D filament you use, I wish it was available in the US.

If its a bowden extruder it will have issues. Period. I also fixed my CR10S by making a custom lenght bowden piece and buying a non slide through fitting so I could tighten the fitting over the tube...its a pain in the ass.

So basically the prusa mini has the same problems as some ender 3s had

I received my own Prusa mini a couple weeks ago. I was also plagued with the same problems as you, firmware crashes during purge cycles under extrusion as well as hard extraction when changing filament. I took my extruder apart and found that the ptfe liner was indeed too short with a ring of filament between the end of the tube and the brass fitting. I added about .75mm to the length of a new piece and the under extrusion has gone as well as the hard extraction problem. Oddly enough the firmware doesn't crash anymore either. One thing I noticed is that the part cooling fan blows on the heat block as well. In the mean time I have reduced the fan to 80% and increased the nozzle by 10c until I design something to clip onto the existing duct to direct the air to the part. Thanks for this video as it saved me from getting fed up and sending the whole thing back. Now it seems to print beautifully and I will be keeping it to work alongside my Mk3S MMU2. Cheers, Mike.

I was one of the first ones to receive my Prusa mini. I have been printing on it since mid-December of 2019 (ordered mine immediately after the announcement at ERRF). I haven't experienced any significant issues on mine, it has been rock solid. I did have to loosen a few of the zip ties because they were overtightened. Beyond that, no problems. I have printed mostly PETG and PLA. I do notice a bit of a stronger odor when printing on my Prusa mini versus some of my other printers with all metal hot ends. I do notice some ghosting at higher speeds (100 mm/sec) but that is the case on most printers with moving beds. I haven't notice any vertical banding on mine. The MINDA sensor seems improved over the past iterations (MK3, MK2) and is more repeatable. I've had to reduce my extrusion multiplier in the mid to low 90's on most filaments to prevent over extrusion. 100mm e-step test was accurate from the factory.

I just got my mini and it still has this problem, I used your solve and it did fix my issue. Can't say I'm not disappointed with prusa for this still being an issue over a year later

recieved my MINI a week ago. Have not had a single issue so far. It just works. This is my first 3D printer, and I must say it is money well spent, not having to spend a week finetuning a chinese budget model with no prior experience. Looking forward to riding the steep learning curve :)

Just finished assembling mine. I couldn't get it to load filament and eventually noticed the extruder idler tension screw loose and dangling out the side. Once I got that fixed it seems to be running great, hopefully that's the worst of my issues.

About to take a shower. Sees upload. Showers are really more of an optional thing...

Those factory printed parts look terrible. Do they look as bad in real life? Also the print quality is pretty weak off the machine. Sounds like the mini kickstarter isn't all it was cracked up to be. Great video as usual though. Thanks for all the hard work you put into your content.

My i3 MK3 is the best printer (of 5) that I've owned. I guess I'll hold off on the mini.

needed the other non tecture bed

i did consider getting one, but because of the delay i went with the ender 3 and glad i did, great wee budget printer and quality of the prints i've had so far are great.

To everyone who likes the X3D sparkle filament and is not from australia: Check out the twinkling filaments (blue, red, white, black) from Ziro 3D on Amazon. They seem to be practically the same. I use their filaments for years and am very happy with the print results. Also they come with a zip lock bag to store the spool in. The issue with the teflon liner not butted up on the nozzle is something I would'nt have expected from a Prusa printer. Overall a bit sad to not have an all metal hotend anyway. The production cost is tied to that. But the print quality is pretty good I'd say. I do not wonder about the fit of the polypanels a bit looser than on other printers. My guess is that the Prusa just prints a bit more accurate than other printers. BUT: from my experience the Prusament PLA preset in slicer is underextruding a bit. So even when I use Prusament I choose the Prusa PLA preset. For the stringing? It is either the cooling not strong enough or your print temperatures too low. The preset Temperatures in Prusa Slicer are a little low. But that depends on the modification of the PLA. Usually I print PLA with 215°C.

mh i compare the prusa mini with my ender 2 and so far it doesn't look like a change. i am especially disappointed with the print quality.

I hope to see more of this printer in a month or so, from you :) I trust your feedback on printers and since i just ordered one about a month ago that will get delivered end of May, I'm a bit concerned if this was the right move as I've seen many others with issues with QC. It seems like almost every single RU-vidr have had minor or massive issues with this printer, and I'm starting to wonder if my money is better spend elsewhere. this is not my firs printer, i just had a long break and my old printer was 100% DIY so that doesn't scare me. Tho i like the ready to print no tinkering approach prusa seems to give you on some thing like the MK3. In my mind is just wrong to pay for old control system (8-bit) just to upgrade it after the fact to be able to take advantage of all the features in something like Marlin 2.0, hence why i went the Mini road instead of a cheaper option like Ender 3 + some upgrades

glad i didnt bother with this machine myself

Great review Michael. Have been tempted to get the Mini, but don't really have the need, think I'll wait for the Max, I've got very high hopes for that. Did you know that the links cover the credits at the end? Is there a way to turn them off?

Is bontech extruder worth upgrading for 65$ ?

Welp. I hope my mini doesn't run into these issues out of the box. It will be my first printer and I feel like I'd struggle to correct these problems.

Good video thanks

Same exact issues here. Just threw one together last night and was up to 2am trying to figure out why it'd print for a bit, then jam up. I was assuming it was a better setup than a standard Bowden tube setup, but nope. A real shame since the regular prusa we have at work is amazing! Can't recommend this one to anyone at the moment...

I cancelled my Mini order when I found out how long it would take to get it. I was really upset about it until I just watched this video. Thank you

I had the same problem in my Prusa MK3. It looks like PFTE tube problem is very common. If someone have this problem, just try to raise temperature. Raising temperature helps in extruding. Few days ago, filament stucked in my extruder. There was no extrusion. I pulled out filament and it breaked very near hotend. I didn't want to disassembly whole extruder again so I just raised temperature to 290 for PLA, loaded filament and it flowed out itself.

Still waiting on my mini, still looking forward to it! Looking forward to tinkering

Nice with a unbiased review Thanks for sharing 👍😀

I have had my mini for about a week now. 3/31/2021. I have printed about a dozen things with this printer and NONE of them came out right. They all suffer underextrusion and holes. Now the printer constantly clogs and jams and the extruder randomly stops working. This is my third printer and first Prusa. First impressions are important and this killed the Prusa brand for me.This has been a terrible experience. I've tried the recommended hotend videos that are floating around on youtube and none of them solved the issues. Right now I have to decide whether to lose $68 and just ship it back and be done with Prusa forever or spend $80 on Bondech upgrades and hope they fix the printer. Can anyone here push me in one direction or the other? If I can get this printer working, can it even produce good quality prints? My other two printers are an Ender 3 and Ender 3 v2. Both were easy to set up and have been printing rock solid for 4 months with no problems.

Assembled the prusa mini, all checks are right. Calibrating went not very wel, bud after lowering the minda it was good. But I've a fillament issue. The filament is not going true the extruder. I re-assembled the extruder, but nothing changes. How can I fix this problem?

It appears that you are printing with PLA on the Prusa Textured build sheet. My understanding is that the textured build sheets are for other filament types such as ABS. I have been using the smooth PEI sheet with few problems with the piece not adhering to the bed. I find that I do need to wipe the PEI sheet down with alcohol before each print else I run the risk of the piece sliding out of position during printing. It's still fairly new with the PEI build sheet having only completed a couple dozen prints, however I have yet to remove the built plate and flex it to release the printed piece. I suspect that over time with wear, the pieces will adhere more readily and I won't need to be so diligent with wiping down the build sheet between prints. Also regarding the clicking/nozzle clogging... I tried several different spools of filament that were of the same manufacturer and they all resulted the same -clicking, then under extruding, followed by a nozzle jamb which could not be "unloaded". The easiest way I have found to remove the jamb is to undo the Bowden tube by removing the fitting nearest to the extruder with the supplied wrench/spanner. slide the PTFE tube up & out. Then cut the filament you should now be able to unload, but note that approximately 10" of the filament that you just unloaded will not be smooth. Be sure to cut the portion off before reloading. Now, you will have a small piece of filament remaining in the extruder where you cut it. Heat the nozzle to 170C and once up to temperature has been reached, it should pull out cleanly. You may need a pair of needle nose pliers for this if you didn't leave enough filament to grab on to with your fingers. Now push the PTFE Bowen tube down into the fitting as far as it will go, and re-thread the the brass fitting on to the compression fitting. Note: it just needs to be snug. In fact, mine is "finger tight" so I don't need to use the wrench the next time. Lastly, after much frustration with the clicking/nozzle clogging, I changed to a different filament manufacturer (ERYONE) and the problem is GONE! I can only say that this is my first experience with a Bowden type extruder, and that the Mini must be less tolerant to Filament (size) tolerances than direct extruders. I am now using those problematic filaments in my other 3D printers which all have direct extruders as it doesn't seem to cause those issues.

You're supposed to use the smooth hotbed surface for printing with PLA. That's why it detached for your benchy prints.

Not for me - I'll use Klipper and stay up to date, the BTT boards have enough possibilities. It may take a while to get the profiles for the filaments right, but after that it just works unless I want to tinker. I like the use of rods, although I would prefer drylin bushings over the ball bearings - a lack of maintenance and manifacturing precision got them out of fashion for now.

Recyclable pretty much means nothing. If they would use just cardboard than it could be composted. Otherwise in the US 98 % of the time, this stuff ends up in the landfill. Don't take my word for it.

Hey Michael I use Superslicer with my Mini+ that I just received and no matter what I try I can't get rid of the bloody stringing. Did you get yours right in the end and if so would you mind sharing your retraction settings please mate. Thanks so much for the amazing content.

I wish I could get one..sadly no money plus its not on store until august.. I got an Anet A8 since nearly 2 years which I couldn't get to work due to bent heatbed (had to order a new one + put a glass plate on it and got some rubber boots for it online), constantly clogged nozzle etc etc, I so far, after 2 years, didn't even get ONE print done, so I gave up and the A8 has caught dust on my shelf.

I bought the Mini + because of the many positive reviews and that it was supposed to be one that works out of the box, but so far I'm pretty disappointed. Assembling has cost me almost 2 hours because I couldn't line up the bolts with the sliding nuts, if 1 went in then the others didn't, and vise versa. Finally managed to get all in, then tried to mount the display, but it wouldn't grab with the 12mm bolt, and the 20mm bolt was too long, so had to get a 16mm bolt. Today finished everything, did some tests to set the nozzle height, lowered it a lot but still everything comes out like shit. lines are wobbly, the square is definitely not solid. I tried to print the nut on the USB drive 3 times now, but it's just one big mess and comes loose of the plate, the third time it went 3 layers, it didn't look that well but hoped that it at least went a bit further, but then came off the plate again. I have never had a 3D printer before, so I'm not really that familiar, no idea if it has to go even lower, it looks pretty close to the plate now. The manual is also not that clear, it shows some pictures of how the filament should look, but you can probably only see that under a microscope. On the video that Prusa shows, he only lowers it a bit and then says it is 'spot on' but he doesn't show anything, so that doesn't help either, guess I should have bought a creality after all....

The "warrior statue" is called Gallos, It's from Tintagel Castle in Cornwall (the supposed seat of King Arthur)

1st. Ordered mine in January and due April 😓

My Mini has been the worst printer i've ever used. I think maybe i've gotten one print off of it. I just thought it was a bad product. I'm going to try your fix and see if it helps.

MIchael, what did you finally end up doing about the stringing? PETG is awful with the mini for me so far.

I noticed your benchy not sticking to bed for a couple of trys. I have been using PEI on my print bed for PLA. Love PEI once I started heating bed to 80c. after that increase in print bed temp, all my prints stick every time. Even if the nozzle is to far from bed. Have tried to knock prints from hot bed, they don't budge. I have the flex steel plate on Magnetic sheet. The release is great when bed cools. Have come back to a finished print with the bed cool and simply pick up the model, no prying, no flexing just pick it up.

I just got the prusa mini + and the first print with the tree frog was good, then the second print with prusa slicer failed horribly, and when I came back in the morning the print was supposedly 100% finished yet the printer kept the bed and nozzle temperature as high as it gets.

Hi I am looking to by a 3d printer, it is so hard to find one. You said Prusa is not perfect but which one is perfect ? A lot of youtuber are sponsored by the product they review so, understand if you can't answer me.

opinion on this vs the cetus mk3? considering a budget ish printer willing to go higher price budget as well, would you say prusa mk3 is worth it, I am looking for high long term reliability but willing to tinker to adjust to likings short term.