Polar Coaster Drawing Machine

by bartdring Oct 24, 2017
Download All Files

Thing Apps Enabled

Please Login to Comment

Very nice design thank you very much for sharing. Just one question if I may is there any reason why not using directly stepper motor for rotation?

Do you think Nema 17's will work if I modify the mounting plate? I have a few extra 17's I was hoping to use. I may just print some of the parts and see how far off it is.It's a great project and so far I've printed the base and it is a well designed part.

Klipper suports Polar kinematics and there is an old Marlin version for R-360 on github https://github.com/kory75

this would be such a great food printer if someone converted it to Marlin :(

I really like the spiral cam!
This is a great idea.

Mind if I ask how whether or not you need to re-scale (if that's the correct term) the Y axis steps per revolution? since its using s 36T pulley while the turntable is a way bigger one. currently in the process of making one and read the blog post, I don't know if I missed that turntable scaling part

awesome build though

Confused on the way the firmware translares the movement, would like to make a polar 3d printer, so as this does would have an X axis and use a turn table as the Y axis

so would need to extract this and program it into marlin

Read the blog post on the kinematics. That describes it pretty well.

I did read the blog post and get how it works, but still alittle confused about how it actually works

Can I use a step motor on the z axis?

I saw your project, congratulations.
in part it reminded me of what I'm dealing with, it's a lamp printer.
I hope you can find it interesting
thanks bye

Thanks for the comment. It was a fun build!


Shafts don't have lengths in your BOM, do they?

It's a little beauty ! Very pleasant to see in action