Hey Steve, also what were the fishing swivels hooked onto on the platform? (I can see they are connected to the servo but not where the other end connects)
The main vertical rod is 8mm and around 6.81" long. The horizontal one going from the platform to the U joint is also 8mm. Don't know the length, just make them flush to each other.
@@steveturner1447 I have another question, I want to use a windows PC instead of a raspberry pi to control servos and google hasn't been too helpful when I tried searching for clear answer or guide. Do you have any suggestions? I heard about something called an ESP32 micro controller
i thought about this on the screws not being a perfect fit inside the bearing an was looking at trying to make a sleeve that went of the bearing but what little i messed with it it looked like id have to drop the screw size to a m4 to get a shaft on the screw that would fit the id of the bearing an the od of the screw, i even considered a couple wrapped of electrical tape around the m5 bolt to see if that helps but ive never took the time to test either. im waiting on some parts to come in the mail an im going to start a corexy build to keep on my desktop. not sure how its going to turn out, just seen a few post of ppl taking the little kingroon kp3s printers an converting them into corexy an ive got a couple for $50 each and a pro an im going to use those 3 printers to try to put one together but im going to try to use a builder bed than the 180x180 so its going to be based on the conversion i guess but i'll be dealing with getting it to work in a bigger format, or thats the hopes. i got a bunch of other machine i can use so its more going to be a learning experience an i wanna try klipper, its been out plenty long enough an ive still not tried it, but i just got a bambu lab p1s machine an its a monster compared to what ive gotten used to from my older machines so im hoping i can get the little corexy to at least print at half the speed as my p1s, if i can manage that i'll be happy, if i can do more or match id convert all my older machines.
Nice video. Thanks for sharing the info. Did you ever get the carbon f rods working? I'm about to use it on my own design and I was wondering if there is any pitfall...
About how much did the build cost? Also, what is the minimum bed size for the 3D printer? I have a printer with a 220x220mm bed size, and I wonder if the parts for this sock knitting machine could be printed on that printer. By the way, I bought your book, and it arrived today.
Sorry, don't know the size. I just used what came with the servo. 3D printers usually make small holes on the narrow side, so just drill them out as needed. Good luck with your build. Steve
Good question. I need to make a list. I used PLA on all parts with gyroid infill. 20-25% on the idler brackets and z motor mounts. 100% on the heat sink and bearing clamps. 40% on everything else. Steve
First of all, great work! Would it be bossible to make a video where you show the electronic parts, the wiring and how you set it up? I'm thinking of building a similar 3d printer but a little bit bigger and now the only thing im wondering is how the electric side works. Thanks in advance
Thanks Felix. Unfortunately, I don't think a video on my electronics would be much help. I am using a unique setup that most won't use: 2 separate controller boards with laptop running Klipper (no Raspberry Pi). There should be plenty of other videos online that show this. Steve
Nice design. I like the 360 blower for cooling. But that is ine chonky thick build plate. Going to take a lot of energy to heat it up, i guess it can act as a heated chamber around the print surface though.
Smart idea, though usually you can simply go for linear rails to mostly fix the problem. If you used 2 opposed linear rails in your design with a gantry in place of the rails you could probably do it the way you did it and have damn near no twist or slop ever... Im sure its unnecessary but i love overkill for stability...
wow looks like a lot of fun. really like that green filament. i have a flying bear p902, a tronxy x5sa, a neptune 4 pro and a resin printer. i really like tinkering. ive been thinking about building my own for years... its like a puzzle trying to figure out how to design stuff. its fun but only if you like puzzles.
Good video and interesting project. I always enjoy watching other peoples 3D printer designs and builds, after being stuck with my head in my own designs for a while. Lol
very nice design ! the only thing I would say is that there is a big moment force created with the unsupported pulley on the stepper motor because of the belt tension. I've seen designs that support the end of the stepper motor shaft with another bearing to avoid the twitsing motion of the belt tension to be applied to the internal components of the stepper motor only... so less wear and tear of the stepper motor bearings and prolonged durability ?
If I understand what you're describing correctly that's a very common design element for exactly that reason in other industries that make heavy use of timing belts. The last thing you want is for your machine to be down for an extended period because a motor was destructively misaligned by off-axial torque from an unbalanced belt. Another common solution is manufacturers will design in additional pulleys and idlers to redistribute or counterbalance those forces using the same or additional belts. Often this is as simple as adding a second belt and pulley to the same shaft and it's reciprocal mate exactly opposite the pull direction of your primary belt. These balancing belts don't even need to be toothed since they're simply providing tension, so for an application like these sorts of printers you could save money by using inexpensive office style rubber bands of appropriate resistance (layering them helps with that).
Looks great! I see you have a pattern for a circular knitting machine for 3D printing. I’m looking for a 1:12 scale CKM for my friends sewing roombox I’m making her. Would you happen to be able to help me with this?
What would it take for you to make print files for a flat knitting bed and ribber? Especially for regular and baby sized yarn? Existing machines are pricey and I see so many patterns that require garter stitch. Love what you've done so far!
It's wireless in the sense that the Echo connects to the internet wirelessly. But, you can't take it around with you. It has to plug into power (no batteries). Make sure you can find the BC127 bluetooth audio module before you start. I think they have been discontinued. Good luck on your build! Steve
Thanks! If you don't like the spring design, there is a popular remix here: www.printables.com/model/355228-circular-sock-knitting-machine-for-my-mom-and-you- Steve
This is really cool. Home Assistant is ever so slowly creeping towards releasing their own open-source voice assistant, so with that, and a Wheatley AI voice model, someone could probably create a more tightly integrated version so when you ask for the weather, Wheatley would respond directly instead of outsourcing the TTS to Alexa. I might give that a shot later on once their voice assistant stuff is more fleshed out.
Hmmm. Not sure. It would take some work to modify. Size looks about the same, but you would have to modify the speaker mount. Bluetooth should work. Power supply is different, but you could easily change the wiring. Doesn't have LED display (which I use to tell when it is talking). Automation is certainly different than Echo. Good luck! Let us know if you get it working. Steve
I found that the frame prints OK if I print it face down. I did find that the hole for the crank gear to crank handle is larger than the bearings I have. There is also the minor issue of the layers running across the frame vertically parallel to the rotation of the crank gear. My tentative plan for that is to add a 1/2-3/4" plywood under frame to the printed frame for just that much more support. I'm likely to shim the hole for the bearings for the frame in my print, but I'm also considering a remix that gives me the ability to fairly easily to add a bayonet our 'wedge' ring to hold down the hook cylinder. And I may 'fix' the bearing through hole in the process. That may be a new ring (and clearance) to mount to the bottom of the needle cylinder, and either the ring twists and locks in place in the base, or it has protrusions that mate with a ring under the base that twist-locks the ring into place. Unfortunately the current owners of thingiverse have made it so my old login is no longer usable. I'm not really happywith the options currently available, so it may be a bit before I can upload files. I mostly model in TinkerCad, and so far I can't use Fusion360. (Autodesk seems to have an issue with porting their products to Linux.) I may be able to work with the STEP files though, so we'll see.
