Designing a granite epoxy hobby CNC machine using Onshape

nick_papageorge073

Hi all, I like machines and in my spare time I've been designing an epoxy granite CNC. I'm using Onshape to do it. I just started a youtube video series on it if anyone is interested in hobby cnc machines.
<== Not even close to an expert!:)

https://youtu.be/zW7GurXszDw

nick_papageorge073

Episode 2 and 3 here:

https://youtu.be/4R-Bbvmqzh8


https://youtu.be/s8TwhfJx-q8

nick_papageorge073

Episode 4:
https://youtu.be/YBuvUou9-bM

MichaelPascoe

This is pretty legit! Thanks for sharing.

larry_hawes

Nice Nick,  Not easy to watch almost an hour worth of videos but like Michael - legit. Curious and perhaps you alluded to the answer but will you need a CNC machine to create your CNC machine? Perhaps the Bridgeport?

nick_papageorge073

Episode 5 here. This episode is about attaching the column to the base.
https://youtu.be/C-xPnMl7j9w

nick_papageorge073

larry_hawes said:

Nice Nick,  Not easy to watch almost an hour worth of videos but like Michael - legit. Curious and perhaps you alluded to the answer but will you need a CNC machine to create your CNC machine? Perhaps the Bridgeport?

Yes, I have a tiny Taig brand bench top CNC now. I will use that to make the small parts. And I have a Bridgeport a few states away where I grew up. I will make the bigger parts on that.

nick_papageorge073

Episode 6 here. This is a first attempt at physically experimenting with epoxy granite mixtures and molds.

https://youtu.be/ee7k1Vns9h8

nick_papageorge073

Episode 7 shows a physical trial of the metalized epoxy based tramming system.

https://youtu.be/0Avso9RzTyY

nick_papageorge073

Episode 8 shows what happens when the physical experiment of the column and the base trammed with metalized epoxy are separated.

https://youtu.be/wxLsC1vbAIc

nick_papageorge073

Episode 9 shows the filling process of a test CNC frame with epoxy granite, and conclusions if it was worth it.

https://youtu.be/Iz5EkhuxTJQ

nick_papageorge073

Episode 10 is a complete redesign. Went back to the drawing board. Now the frame will be based on a 6x6x.5 inch 6061 extrusion I found on eBay for a a bargain price.

https://youtu.be/H-d4Oyld9FI

nick_papageorge073

Episode 11 here. I now have the extrusion for the frame in-hand. The important lesson in this video is at the very end, where I realize I'm nuts to even attempt this.

https://youtu.be/UPoWmRqosCg