I think it's a good base to start from for an open source 3D printer lathe. And I saw a lot of criticisms on reddit, a lot of good points but nobody actually commented on how to improve the machine most was just bashing on it so made a list on some of the points mentioned there but how you could improve or fix them.

The PLA mold should be switched out for an ABS one as it should be resistant to the alkaline from the concrete. Or use sand or granite mixed with epoxy for the base instead. The superglue as I understood it is just to make the mold not leak and in the video it had thread rods inside it so it would be structural.

A tool holder is a feature I would like to see. It wouldn't be hard to add to implement but for smaller pieces like you showed i don't see the problem.

An E-Stop is a 1 dollar addition to the build and is an important safety feature to have. The same with a motor relay would cost 2-3 dollars but make sure the motor wouldn't overload and when the relay is activated a braking resistor should be activated to stop the motor.

A bigger motor would also be a nice addition even though it isn't made for larger pieces some people would want to use it for it would make it safer to do so combined with the features above.

The belt should also be covered, it's a safety issue.

A lot of the issues with the machine could be solved easily without adding any significant cost to the machine. I think it's a cool project but it needs to be made a bit safer. (edited)

Where can I find a BOM?

Where can i find the files for the vice?

Same question as Massa, I can't find the vice files here or anywhere in your profile, could you check it please? Thanks!

What plastic did you use and what level of infill?

Impressive design and fairly straight forward print and build. Minor issues with test fit which were probably due to the way my printer is tuned and prints.

Substituted 8-32 screws and inserts for the M4; 5/16 inch rod for the M8; 5/16 inch screw/nut for the M8 in the magnetic chuck; and M6 threaded rod/nuts for the 2 long M6 bolts. You will need a shaft collar to hold the lift ring.

With the base tilted back 10-15 degrees, did the initial concrete pour through the 2 holes in the base until base was almost full then leveled the arm and completed the pour through the top.

I used the tap arm shaft to align the top and bottom of the magnetic chuck then let the top drop down the shaft onto the bottom. The second time I did this, I made sure the tabs were properly aligned with the slots.

So far I have tapped a couple of #2 and #4 screw holes and it works for me.

Used PETG for the main arm and bearing block, PLA for everything else. (edited)

excellent work well done

I literally cannot believe there are people who can design this kind of thing. Kudos. I'm so jealous of your many skills! (edited)

Wait, why is there only a Right foot file? No left foot?
Edit - realized there's only one-sided objects, since you can mirror them in Cura lol

Edit 2 - there's actually other missing parts from the video - The back grill and the joint between the forearm and biceps (edited)

Hey, I'm trying to print this and I have most of the pieces done. The makerworld and printables listings just are both missing the forearm-bicep joints and the back grill like the other commenter stated. Could you please upload those?

3D printed Ball vise

I saw your video on this great ball vice but when I saw that you used a metal bearing I immediately thought of this video https://www.youtube.com/watch?app=desktop&v=5o4Fj8OxkB8. This is a parametric cad design of a slew bearing that seems useful for this project. I will print my vice soon and will try to report how the bearing is working here in the comments. If anyone is interested in just the model from the video here is a link https://www.thingiverse.com/thing:2375124 .

Printel with Sunlu PLA+ on Bambulab A1.
After trying to print it in the previous months on my other printers, I came to the conclusion that it is a very delicate and tight print with tolerances. On the Kobra and the Mega S I wasn't even able to insert the rollers, much less slide the tape, I've had an A1 for a few days and a little while ago I printed this cassette with a resolution of 0.08 mm, everything perfect, tolerances respected, the rollers they come in and flow, as does the tape. Thank you very much for this project! It will allow me to print many personalized mixtapes.

This is my first attempt to personalize, incredible result!

You should add the files for the flat vice directly into the work holdings collection. Also, please use the format "3x m3x16 bolt" or "3, m3x16" to make it clear to readers that you didn't just forget to remove your bullet point of your list. It also helps to just have a simple table for the parts. Chatgpt can help with generating one for you.

"Based on the provided information, here's the updated Bill of Materials (BOM) in ascii +-------------------------+----------+------------------------------------------+
| Part Description | Quantity | Size/Specification |
+-------------------------+----------+------------------------------------------+
| M8 Bolts | 16 | 10mm |
| M8 Bolt | 1 | 65mm |
| M8 Rubber Feet | 4 | - |
| M8 Coupler Nuts | 9 | 13mm across flats |
| Lazy Susan Turntable | 1 | 5 inch |
| Rubber Material | ~20cm | 6mm diameter cylinder |
| Concrete or Plaster | ~2KG | - |
| M4 Bolts | 3 | 30mm, hex head |
| M4 Bolts | 2 | 40+mm, hex head |
| M8 Bolt | 1 | 20mm (for painting handle), up to 50mm |
| M4 Bolt | 1 | 30mm, hex head |
| M4 Nut | 1 | - |
| Optional Threaded Insert| 1 | - |
+-------------------------+----------+------------------------------------------+ "

I enjoyed the ball and vise but didn't enjoy making it. The link will send you an 8-page guide on how to build the ball, feather tail attachment, and vice. This guide should help anyone trying to build in the future as I had to figure out how to build only based on pictures.

 https://docs.google.com/document/d/1UWqkNq12WTBlc2oJ2LkDziFcALRRPoBhGuiMa0FcVmc/edit?usp=sharing

Where are you getting the cardboard from? It looks precut? If i try to hand cut board that thick its going to be junk on the edges and my printer will absolutely throw a fit and reject my poor craftsmanship

I haven't printed this because I don't have any old CD racks lying around, but I just wanted to say that I think this is an absolutely genius way of making something practical *and* keeping waste out of landfills. Genuinely, this is a really cool way to upcycle something. Thanks for sharing this with the community. (edited)

I enjoyed your humor and the idea of making a mac of any kind sort of useful.

I'm putting this together now, the prints came out really well. Thanks for sharing them.

I printed in white PLA, because that's what I had, but I just had a thought: should I paint the inside faces flat black? Will the in camera image be clearer if there's less light bouncing off the side walls?

Where are you getting these random parts from? Could we get links to things like the glass, mirrors, etc? I am having hard time finding them on AliExpress and Amazon

Working on this at this time. This is the Swiss Army knife of portable camera lucida.

Can this fit into a card wallet AKA Quallet?

Looking forward to the guide and video. hope you list the parts fully in the guide too.... This looks like a must have item

Fun print, no supports required.

Saw the comments that 40mm was a little underpowered, and since the math to 120mm standard fan was easy enough, here's a 300% BIG CHONKER of a Kirby. Really fun build.

Great thing, thanks for the design ;)
Modded a little bit the arm to fit my parkside helping hand.

Printed the A body model with 2 piece of 40x40x10 sunon maglevs. As they are 5V, with a power bank it is really portable.

could you provide a link to your helping hands

It seems to me the base plate could be 3d printed as well.

So, after putting everything together, it has been quite difficult to put together with living an the USA and not having quick access to metric sizes especially at the length you used. It would be great if 1) you made a more use friendly list of accurate screw sizes/lengths 2) possibly made a SAE model for us Americans ... lol