New Machine: Avid Benchtop Pro CNC with ClearPath and Centroid Acorn

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Today I'm finally getting around to assembling my new Avid Benchtop Pro 24 CNC machine. This is the mechanical part of the build to go with the electronics I've been working on for a few weeks. Today we'll get it assembled, wired, and moving under its own power.
00:00 Intro
00:27 The machine
06:17 Assembly
09:36 Motor screw mismatch
11:52 Making studs
16:29 Mounting motors
18:54 Wiring it all together
20:39 Issues encountered
22:09 First movement
26:32 Software configuration
29:59 Rapid tests
32:51 Wrap and next steps
Tools used in this video:
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Raw Kevin MacLeod (incompetech.com)
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Опубликовано:

27 июл 2024

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Комментарии : 308

@Quad_Awesome 2 года назад

"It's way overkill and it's glorious" I Love It!

@rpavlik1 2 года назад

Oh man, so glad to learn the holes in the servos were clearance holes. My brain was hurting trying to figure out how you were going to thread those in, had figured you could thread them all the way through, since 5 is smaller than 6, and then you put them in the end of the gantry... 😅

@BillyHardcase 2 года назад

There is no such thing as "overkill" in the work shop. It´s just a myth. Very nice tool.

@bobweiram6321 2 года назад

For me time, energy and money are usually underkill, so overkill every chance I get.

@arminth 2 года назад

What an impressive arsenal is coming together in your "home shop"! I'm a bit jealous (just a little bit!). Enjoy your new toy!

@MikeyFirst 2 года назад

James won't have space to do his dead lifts anymore in the near future..

@JbotMischief 2 года назад

I love how thorough and clear your videos are.

@kristinamckeown5106 2 года назад

Awesome machine! Congrats on having it come together. You have put a tremendous amount of work into this! Very cool to see all the steps involved in constructing a custom/upgraded machine like this. Thanks you so much for your thorough explanations, beautiful videos and for making my brain smoke! Another 500 views and I will start to understand it! : )

@chiparooo 2 года назад

Very nice! Looking forward to seeing some chips flying. Thanks for sharing!

@DavidtheSwarfer 2 года назад

Nice to see some SMW stuff in the wild, I have followed John since his first Tormach

@Clough42 2 года назад

He's done well for himself. I'm happy to support his business.

@CraigVanSickleAK 2 года назад

My favorite CNC channel! Loved your stepper/servo content. I recently finished a 4x4 build and used several of your videos to help during the build. Keep it up!

@kevpkelley Год назад

You are awesome. We are about to the acorn. Super excited

@larrysmurthwaite773 2 года назад

Very shinny! The satisfaction level is tangible!

@mattchilton4950 2 года назад

Anyone else hear TIE Fighters when the machine is in full rapid? Can't wait to see what you do with this machine!

@Clough42 2 года назад

Yeah, that was my thought, as well. I think I mentioned it in an Instagram post.

@gregdittrich1206 2 года назад

Keep up the great videos James! I always look forward to a new video every Saturday.

@rodneykiemele4721 2 года назад

Great video, can’t wait to see this baby run, Thanks a lot for all that you do.

@rogerbehrens4879 2 года назад

Machine build is looking great. Love how everything is re-engineered from standard. I have like doing that too. Can always make it better is a great mantra.

@steveu235 2 года назад

Loved this video. Really well done with a Beautiful machine. I'm looking forward to more on this machine. Thanks

@MyLilMule 2 года назад

You have a lot going on in a 2-1/2 stall garage. I think that's great. Your ingenuity is something to be admired. Nice job, James.

@Clough42 2 года назад

They call it a 3-car garage, but it's sure starting to feel smaller than that. :)

@BecomingOffgrid 2 года назад

You will be really happy with those clear paths. I love mine, they are very good motors.

@DaCat2 2 года назад

Another great build, thanks for taking us along for the ride. Very pleasing to watch you work. To neaten up the proxi cables get yourself an I/O Block with single multi-core cable going back to the control cabinet. This does mean that your gland plate with the M12 connectors is not really needed anymore, your call. You could use a single 8-pin M12 connector to accomplish this. As for the proximity sensors, check that they are Factor 1 or +UProx that will well with non-ferrous metals with very little range de-rating. Shout if you need more info.

@cyrusramsey4741 2 года назад

Nice machine! Looks like it will be great to use. 👍

@KarlMiller 2 года назад

Very cool. I struggled to figure out how their way covers worked since they first came out but I finally saw in this video. Thanks.

@Clough42 2 года назад

It's a system I haven't seen before. They snake through the moving shoe under quite a bit of tension. I would have expected the path to be straight, but I guess not.

@SegoMan 10 месяцев назад

11:34 you will love those motors, I have a single NEMA 34 / 1400 oz on my plaz table that that throws the 400 lb gantry around like its nothing..

@transmitterguy478 2 года назад

Excellent work, looking foward to seing it cut.

@dennismacwilliams196 2 года назад

What a cool setup

@michaelcoffin4364 2 года назад

This is the machine ive been drooling over. My Next Wave Piranha isn't cutting it anymore. Love the video.

@misterfixit1952 2 года назад

You should think about shear-pins to prevent runaway and damage to the drives or screws. What brought that thought about was the shear-pin on the lead screw of my new Clausing 5914 lathe. Just a thought.

@DAKOTANSHELBY 2 года назад

James, I am speechless with your abilities to program, create and acquire this amazing equipment. You are an inspiration to those of us thinking of moving into the home cnc arena. Thank you for your videos.

@grandmastersreaction1267 2 года назад

Looking forward to the alignment videos!

@AmateurRedneckWorkshop 2 года назад

Very fancy. Thanks for the video.

@BehayiluGetachew-hl8mv 2 месяца назад

Wow great work

@jessesilver 2 года назад

This is my build, too! Benchtop Pro, clearpaths, and acorn. I just drilled out the mounting holes in the clearpath faceplate a TINY bit and mounted them as-is without making studs, but either way :) Also built my own control box, which I know you are going to show later as well. Great setup!

@Clough42 2 года назад

The control box was in previous videos.

@Th3mast3r69 2 года назад

All I can say is wow. Nice work!!! I would love to have a machine like this.

@Clough42 2 года назад

You and me both!

@joeldriver381 2 года назад

I have used clear PETG filament as a light pipe to get LED indication to the outside of boxes. You can also use home audio optic cables for this. With some 3D printed holders you can make this work and not modify the electronics. Hope this helps. Great work!!

@v8Mercury 2 года назад

Nice idea.

@joeldriver381 2 года назад

@@v8Mercury Thanks!

@Clough42 2 года назад

Oh, that's a very interesting idea. It would be pretty easy to modify the side plate of the C86ACCP mount to hold a Toslink cable in the right position.

@chrisvarrin5819 2 года назад

I have used commercial fiber optic light pipes and panel mount bezels with a 3D printed holder to position the light pipes over SMD LEDs. Works great.

@joeldriver381 2 года назад

@@chrisvarrin5819 yeah- I work in IT and tried that. I had better luck with the fillament and home audio cable. It may have been my fault... I seem to recall the larger diameter of the filament and audio cables helped. Whatever works for you!!!

@samvoelkel2046 2 года назад

Very interesting, as always.

@davidhofman4341 2 года назад

You showed your hand. Your hand was positioned over the servo programmers best friend. The E-STOP was always covered with a hand ready to depress at the slightest possible malfunction. We fabricated and programmed high speed packaging equipment. This was in the early 1990's. One system had 5 different communication systems within one machine. Things have sure come a long way. That machine is finally being removed summer of 2022. That sure is nice when you can rotate your panel up. I modified my Crossfire, added my own floating Z, scribe, and extension kit. I left the panel where if was from the factory. Laying on the shop floor is not fun.

@GBWM_CNC 2 года назад

Interesting machine! Great content as always

@taranson3057 2 года назад

That’s an awesome CNC machine you have there. It makes my CNC machine look like it a homebuilt machine…which it is.

@outsidescrewball 2 года назад

Enjoyed….looking forward to future videos…

@RobytheFlorentine 2 года назад

hi, your channel became one of my favourite. Well done :-)

@pmsilvei 2 года назад

That machine is a dream... 😳😃 Enjoy it 🙂

@tzfletcher 2 года назад

Avid machines are great. We have an 8x4 and a 4x4 pro version in our shop. For the 4x4 we installed a Masso and Nema23 Clearpaths with gearboxes. It works beautifully. But...tuning the y axis servos properly had us busy for a while.

@g.tucker8682 2 года назад

Glorious Overkill. Nice.

@yellowcrescent 2 года назад

Awesome. Looking great so far. Was seriously looking at buying one of the Avid PRO CNC kits last year... but maybe when I get a bigger shop/more space.. lol

@Human_OU812 2 года назад

I have the S30C on my Avid machine. Love both

@CraigLYoung 2 года назад

Thanks for sharing 👍

@ChrisTietjen_00 4 месяца назад

Excellent!

@Mcfryguy5555 2 года назад

Thanks for sharing

@edishergiorgadze4413 2 года назад

now I know what it is for 😊, good luck !

@woodscreekworkshop9939 2 года назад

Renae doing her thing and lifting was so cool 💪🏼👍🏼

@MrSneakyGunz 5 месяцев назад

Beautiful

@ForWard-oo3zj 3 месяца назад

Acorn...nice. Geaux BBG!

@RRINTHESHOP 2 года назад

Looks great, time for making a part.

@Clough42 2 года назад

I need a spindle for that. :)

@RRINTHESHOP 2 года назад

@@Clough42 LOL Minor Details.

@toddhaas6675 2 года назад

Very Nice! Looking forward to seeing how you "Tune" the Y axis with dual motors. I am working on that with my 4' x 8' Avid machine.

@Clough42 2 года назад

Hey! I'm planning to record that this afternoon!

@notsonominal 2 года назад

Way overkill = glorious. Agreed. Well played sir.

@pholos77 2 года назад

hey there, love your job on the case, i'm doing the same and if you want to have any inside light visible from outside, use optic fibre like stuff, just print a support for it and job done, hope to see it in the next vid, enjoy!

@MotoRideswJohn 2 года назад

I'm running NEMA23 steppers on my 2x3 Benchtop Pro and have never wanted for more speed, or power. I can only imagine the chooch that those servos provide!

@davidawaters 2 года назад

Nice video! Every time I’ve used clear paths (3 machines), I’ve just set them up to home to hard stops. They can home to even a rubber stop consistently.

@Clough42 2 года назад

That works for homing the motors, but I'm not sure how exactly that interacts with the Acorn control. Perhaps I'll investigate that someday as a way to get a fourth axis on a dual-drive gantry machine.

@gabsshop4966 2 года назад

Wonderful machine! I happen to own one as well!

@timdaviszaper 2 года назад

Nice machine.

@xpawel10 2 года назад

I have the same clearpath on my zx45 and I love them.

@ToddHCNC Год назад

Hi Coming from Mach 3, I love the Acorn , I use the DMM & DNY2s drives & servos on my 30 x42 router DIY. I also use Metrol NC limit switches , got rid of the Prox switches. Acorn just works IMO

@Mr_Wh1 2 года назад

Those of are some big motors. You'd have to be a mad-lad to use them on such a "tiny" frame. I love it. :P

@vincei4252 2 года назад

Those 5 to 6 mm studs were smart. Congrats on the new machine. I'm wondering whether you'll need an enclosure in addition to the stand.

@Clough42 2 года назад

Yeah. This thing will make an aluminum snowstorm in the shop.

@evbunke2 2 года назад

Seconding this, that's a super clever solution.

@piccilos 2 года назад

Your intro lighting was on point.

@Clough42 2 года назад

Thanks! I've been experimenting.

@matspatpc 2 года назад

Interesting - even if I really don't want to spend more time using computers when I'm machining, that setup looks quite cool.

@Clough42 2 года назад

I feel this way, too a lot of the time. It's part of why I bought a knee mill and didn't convert it.

@marcelpost4052 2 года назад

It was actually a pleasure to see you and your wife do some workouts with the weight lifting. Thanks for leaving these clips in. Hopefully this will not go unnoticed by the other youtube machinist maker channels who could definitely do with a bit of trimming of their physique.

@Clough42 2 года назад

Some of the others of which you speak were part of my motivation for starting.

@marcelpost4052 2 года назад

@@Clough42 I remember you mentioning once that you didn't like the way you looked after seeing yourself on video. I really admire you for taking that decision and sticking with it. You're inspirational in many ways and I hope you will continue to find the time and effort to share your world with us.

@BreakingTaps 2 года назад

Super awesome! Can't wait to see the tuning and first chips! Also curious to see how the FM30 works for you on the Avid. I like my S30C, but the higher torque on the FM30 looks wonderful for steel. Coincidentally, I'm in the middle of some spring tweaking of my machine and it's shaping up to look a lot like yours. Most notably clearpaths and an SMC fixture plate, and contemplating ditching Mach for an Acorn or similar. 🙂 I'm the most stoked about ditching the steppers though, I've definitely seen missed steps at high feeds. Particularly when doing a lot of small/fast Z moves (like on a 3D contour). Great work, really been enjoying this series! Your electrical cabinets are a thing of beauty, I wish I was organized enough to put one together that nice :)

@Clough42 2 года назад

I'm really anxious, too. I autotuned the motors over the weekend, and now I think the gains are a little hot. I'm getting some oscillation during slow (10IPM) moves.

@MakeTechPtyLtd 2 года назад

@@Clough42 I've had to retune, apparently it's common. I tuned at 100% torque. turned stiffness up and its rigid and smooth.

@doulos5322 Год назад

Everything is so clean! I got a lot to learn I guess my router setup isn't nearly as clean the controller on a cart and all its jus nice 👌

@bikefarmtaiwan1800 2 года назад

Always a good quality video . Very interesting . I was surprised how noisy the rails are on the machine - maybe that is because it as an aluminium frame or maybe just a microphone thing . Well done on setting up your new machine

@Clough42 2 года назад

The ballscrews are running pretty fast. I also have the whole machine sitting on my welding table, which has a metal pegboard filled with clamping hardware, and a fold-down plasma cutting table with loose slats that rattle as the machine moves.

@HandsonCNC 2 года назад

I drilled mine out back in 2016 but I didn't have a lathe handy... great answer

@theotherebikeguy1473 2 года назад

I find your videos extremely interesting and informative. (I’m rewatching your old ones) I’m curious what you’re using for control programs on your various machines (and why). Thanks for your content!!!

@kurtbilinski1723 9 месяцев назад

Watching this again, I just noticed that he's using the pro version of CNC12, because axis-pairing is disabled in the free version. For those people, you can use the C86 add-on board, which provides the option of hardware-connected axis pairing. In that case however, the same command is always sent to both servos, so squaring the axis via software is not possible.

@dazzasnipes1911 2 года назад

hey James, Darren from Halifax uk. if you go to your local diesel repair shop or hydraulics repair shop they use these little plastic cups of various sizes depths and diameters to put on the ends of injectors and in the ports of hydraulic rams to stop debris going in and i bet you could 700 of the size you need to plug them holes for very little cost. just a thought.

@Kc12v140 2 года назад

Cover the unused holes with silicone baking mats 👍🏻 they are dirt cheap, and you can easily cut them to fit specific jobs if need be

@Clough42 2 года назад

I would be concerned about them lifting if the air from the mist nozzle caught an edge.

@whizzo94 Год назад

Very surprised that you use Centroid Acorn, had you down as a LinuxCNC man :-)

@scratchbuiltdesigns 2 года назад

That is an awesome piece of machinery. And yes, you will be able to cut steel on it. I have an equally beefy Sorotec router with 180W JMC servos and a 30k rpm 3HP spindle and recently had to make a few bigger parts out of mild steel and was pleasantly surprised how well that worked. So with these beefy Nema 34 servos, your spindle will be the limit. But I believe it is a 12k rpm spindle, so it will have sufficient torque for steel. I would recomment 2 additions however: 1. Something to protect the open Y-axis drag chain from accumulating chips (especially steel and aluminum) 2. Some 3D-printed covers for the Y-axis limit switch connectors. I find them to sit rather prone and at least in my shop there would be a high risk that I bump a heavier work piece into them...

@Clough42 2 года назад

Both excellent suggestions. Thoughts on a good way to protect the drag chain? In my head, I'm imagining a zip-on cover like you might see on a water-cooled TIG torch hose set.

@scratchbuiltdesigns 2 года назад

@@Clough42 Depending on the final location of the router, in a permanent enclosure you could just place a plexi shield between the chain and the gantry. It might not be too much in the way. A zip-on cover (if you find one that fits tightly) might have to deal with the different inner and outer radii. Fixed with zip-ties it probaby would kill the sexy looks of the machine. More elegantly could be little 3D-printed snap on covers, which go on top of the chain, inbetween the litte tabs, that can be opend to access the cables. The moving angle of the chain looks not to be more than 30-40 deg and apart from 5 or 6 chain links, most of them are stationary during movement anyways...

@victorreppeto7050 5 месяцев назад

Just watched a vid from breakingtaps cutting a36 steel with respectable results. I think a spindle better matched to lower rpms would improve the performance enough to tackle stainless and 4140.

@robertlaszewski1282 2 года назад

I have the exact same Avid machine w/ NEMA23's; been running it for 2 years now. It's plenty rigid wrt cutting steel, but my electronics boxes are mounted underneath the machine so no coolant possible in that config -- may change the set-up. I wasn't aware that Saunders has a bed kit specifically for the BTP2424 ... now I'll get to spend more money (thanks). I've also been looking at the ClearPath servo's, but the retrofit is intimidating (just like everything else I've done before I just did it ... so maybe). Thanks for the video; very instructive.

@Clough42 2 года назад

Thanks! I think the appropriateness of the ClearPath has a lot to do with financial resources. If you have the cash or if the machine is going to earn its keep, they're pretty nice. If it's just a hobby, they're a bit of a stretch.

@robertlaszewski1282 2 года назад

@@Clough42 My machine def doesn't earn it's keep. I like the idea of closing the loop on position, but I'm cutting primarily cast acrylic and Al so I'm not missing steps with reasonable feeds & speeds. I hope to see more content with the BTP2424; I always learn something.

@pherdantler707 2 года назад

Nice mill. I sense bigger things are afoot for Clough42 and his 'Tardis' garage!

@LanceMcGrew 2 года назад

I keep thinking one of these days I'll discover a guy like this lives down the street in my neighborhood.

@rhino7342 2 года назад

You should check into invert-a-bolt for the fixture plate. they work great

@Clough42 2 года назад

Oh, that's a cool concept. I didn't know that existed.

@sm6fie 2 года назад

I really look forward to the alignment of the machine. Please spend some extra time on that issue.

@georgel5308 2 года назад

Sick machine sick servos. I got a beefy machine as well but with steppers. I use the same sensors as you have and cutting material would constantly set them off

@georgel5308 2 года назад

Also great job as usual and great video.

@Clough42 2 года назад

I've been drawing up circuits to properly combine NC proximity switches instead, but your point about chips setting them off is a good one. Not sure how big an issue that will be. I guess we'll see. I'd honestly be pretty happy with plunger snap switches mounted in the same holes. Neither has the overtravel to survive a full-rapid crash anyway.

@Know-Way 2 года назад

@@Clough42 While looking at limit switches for a CNC build I came across a configuration where the limit switches are mounted perpendicular to the axis so the gantry can bypass the switch. In the event of an over-travel situation (read crash) the gantry simply runs past the switch without damaging it. The accuracy/repeatability is still excellent. Would it be worth replacing the bumpers with E-Stop switches wired in series? This whole setup looks awesome!!! I think you can broach a 1/4" keyway in one pass with those motors. ;-)

@jimhunt5259 2 года назад

all I can say is WOW

@medhyal 2 года назад

Nice machine !!, I was expecting you will build CNC from scratch.

@geoffscott265 2 года назад

Wow! That's a great looking machine, congrats. Love all your videos. I was curious about the way/leadscrew covers, are they like a roller blind type thing?

@Clough42 2 года назад

They actually snake through the slide, over the frame, but under the outer T-slot plate. So they bend as they go through, but they don't actually move themselves. It seems like it would have a lot of resistance, but it seems to work okay.

@MakeTechPtyLtd 2 года назад

18:20 servos should all be mounted with the cables on the bottom to help prevent ingress. Check my avid build if you're interested. 21:20 I strongly suggest hardstop homming with the servos instead of using the inductive sensors. I just use the sensors as an estop safety feature. An estop / enable latching relay is good for homming the servos. (home on first enable) hardstop homming will go to the same clocked position on the encoder each time so it's much more repeatable. You can offset the y servos differnetly in the clearpath software to square the gantry. Also, as you may know, the servos run better with stiffnes turned up and you may need to do multiple tunes to get a good one. Tune x then copy to y1 and y2. 32:26 you can set the max torque to disable the motor like crash detection, either in max torque, or use the HLFB IO output and set to for out of position. It has saved me from breaking bits, parts, and the tool length sensor. It's incredibly fast acting. My 4x HLFB go into an arduino that acts as a 0.1ms buffer incase there is noise. IIRC the out of position is set to about 20 counts. It will mainly go out of position during rapids under normal operating conditions so that is the factor to consider when tuning that value. -Ken

@bobweiram6321 2 года назад

LOL! Come on, we were all hoping to see the ELS go into action! It reminds me of the Raider's of the Lost Ark scene when the protagonist is challenged to a hand-to-hand fight with one of the local tribesman; having neither the time or the energy, however, he pulls out his gun and shoots the tribesman dead.

@-1-2-1- 2 года назад

would be interesting to see a stiffness comparison with the G704. You can easily do this with a DTI. My Guess is the Avid is not as stiff.

@airgunningyup Год назад

same guess

@v8Mercury 2 года назад

Oh! Here it is.

@v8Mercury 2 года назад

Great video. Thank you. I see your shop is slowly creeping into the next bay.... Or is this going to take the place of the mill?

@tstanley01 2 года назад

I have almost this exact same setup on a 4x8 Pro Avid. The proximity setup is probably the weakest link in the setup to me. It works fine once you get it setup, but because they are setup as "all home", they cant also act as hard limit switches when jogging the machine, so it is possible to crash it if you forget to home it before moving it. I don't know what you are planning for probing macros, but I bought the probeapp for the CNC12 and it is really nice. I have the standard AVID touch plate, but you can set it up for all types of probes, including the centroid KP-3. I am interested to see how you get that plate planar with the gantry. I was thinking it might make sense to get a piece of plate aluminum to mount to the machine, deck that, and then put the surface plate on top of that, then you will know that it is flat and parallel. Then all you have to do is run a indicator across the front of the plate, and tune the auto squaring till the gantry is parallel with the front of the plate. Oh, and I just took 30 seconds and drilled the servo mounting holes out...worked like a charm...lol

@Clough42 2 года назад

I wasn't aware of probeapp. I'll have to check that out.

@DonDegidio 2 года назад

Hi James, Nice setup. I like how you machined the threaded stud adapters. How about using a light pipe for the Acorn heartbeat light. You and the family stay safe.

@Clough42 2 года назад

That's a great idea. Someone else mentioned it, too, and it's something I didn't think of.

@19672701 2 года назад

This is way over my head,but it's good to stretch the brain strings once and a while. Should be a great tool!

@davidsomething4867 2 года назад

I noticed you were using the Router CNC version of the software in a previous vid but then you threw me with the mention of the auto tool changes, lol.

@MJPilote 2 года назад

You are going to want an enclosure for that, chips all around the shop. It gets really old really fast. The ball screws don’t sound too hot, actually sound horrible, or it’s just the resonance from the extruded frame. Flood coolant is a must if you are going to get any meaningful material removal rate out of it.

@Clough42 2 года назад

The machine is sitting on top of my welding table, which has a metal pegboard full of clamps, and a plasma table full of loose metal slats, and they're all vibrating.

@MJPilote 2 года назад

@@Clough42 Ok, thanks for clearing that up. Will be interesting to see and hear the nachine fully operational. That fixture system looks nice, need to check it out.

@airgunningyup 2 года назад

my only concern with this style router has always been the same , Noise.. There comes a frequency where the extrusions act as tuning forks. yes this can be offset with filling the extrusions with sand or cement. I know this is top of the line and those extrusions look way heavier than the stuff on amazon , so this may not be an issue , awesome looking machine !

@Clough42 2 года назад

We'll see. Using servos should help with some of the singing, but the spindle could still easily set up a resonance.

@alexwbakker 2 года назад

In my experience, it hasn't been a big problem with the Avid stuff - the linear rails themselves dampen the vibrations, and the mix of steel / aluminum across the board helps further prevent resonance. Now, Non-ATC spindles are very annoying after a while...

@prototype3a 2 года назад

Polymer Concrete.

@Clough42 2 года назад

@@alexwbakker Yeah, I can imagine. Got that covered.

@michaelkelly3158 2 года назад

Hi James, this build is very similar to mine - clearpaths with a custom ATC setup and the SMW fixture plate. I went down the Masso route so curious to see how this setup works. I also went with a Fogbuster which has been great. I've been quite happy with my machine but I made some modifications to the Z axis, notably shortening the spindle mounting plate on a bandsaw so I could have the bearings as close to the X axis as possible for maximum rigidity. Just a note on some things - you may find your X axis is making contact with the riser plates at the bottom, I filed this away so I could get a perfectly flat mounting surface. You may also wish to recalibrate the alignment of the rails, though mine wasn't far out. I did tweak mine a bit. I went with a Jianken spindle which has been wonderful. I also have some details on my tool rack on my Instagram if you're interested. I think RU-vid will filter out my comment if I link to it but if you search for 'OutpostWorkshopUK' you should find me there and details of my build. Looking forward to seeing how you get on!

@Clough42 2 года назад

Thanks for the pointers. I currently have the spindle mounted (spoilers) so the physical end of the spindle is even with the end of the Z axis T-slot extrusion to try to optimize clearance. I need to see how the geometry all works out, but if I understand correctly, you shortened the extrusion so the spindle is mounted closer to the linear rail bearings inside the slide, while still maintaining clearance? I will consider this, once I figure out how much reach I have with the tools. I have the fixture surface mounted in the second-to-lowest position, and I need to make sure I can still reach everything with the tools.

@michaelkelly3158 2 года назад

@@Clough42 That's exactly right! As you say, I shortened the extrusion to allow clearance as I found it was too long with the spindle in my preferred position - I brought the spindle up as much as possible while having enough room to reach my bed if needed. I found this increased the rigidity quite a bit. I also switched over to one of the Chinese spindle mounts as I wasn't a fan of the stock Avid one with the spindle I chose, which admittedly is pretty ridiculous with hindsight - a 20KG Jianken spindle. I reduced my acceleration quite a bit as I didn't want to harm the mechanics while throwing it around. I don't think you'll have any issues with the CNC depot spindle as the mounting seems much more rigid from what I remember! Anyway, it does take quite a mean chip out of aluminium now, I've been quite impressed! Also, the detail for the bits I'm making has been excellent. If I did it again I'd probably go for a lighter spindle though!

@Clough42 2 года назад

@@michaelkelly3158 the FM30F is just under 10kg. A little lighter than I remembered.

@michaelkelly3158 2 года назад

@@Clough42 That sounds ideal! If you need any help with it give me a shout :)

@petergamache5368 2 года назад

I drilled my Clearpaths oversize. YOLO. :D

@theotherebikeguy1473 2 года назад

Very clever solutions. I can’t wait to see your working video. Question; why do you feel it necessary to go with the NEMA 34 as you’re using servos?

@Clough42 2 года назад

It may not be necessary, but I have no experience sizing servos, and to be honest, the Teknik sales person wasn't a lot of help. He just said if the steppers Avid sells are "sufficient" then he would go with something smaller than what I chose. But I know from another RU-vidr that the steppers are "just barely adequate" when trying to cut metal, so I went bigger. The price difference between the NEMA23 and NEMA34 Clearpath motors was about $60 per motor at the time, which is 10-20% once you factor in the power supplies, cables, shaft seals, etc. I do not want to save a few bucks and then be frustrated two years from now when they are just barely adequate.