Let’s make our own CMM….

Yup, this big arm is nice. I’ve got the power section working again, now I need to see how the rest of the electronics are working.

But…… this arm is too big for doing smaller pieces on my bench top. So I want to use the lessons learned so far to make my own. I have the Langmuir MR-1 cnc to make my aluminum parts, and I can buy carbon fiber tubes. Most of the hard work will be making sure there isn’t any slop in the joints.

This is the MR-1 cnc in the shop…

Gantry style 3 axis with tool measurement and touch probe. I’m really happy with this machine.

I started laying out the structures for the joints. I’m using encoders and carbon tubes available from Amazon. Who knows, someones else may want to build one and specialty suppliers are no fun.

Rhino 3D, the only CAD program I like to use. I have experience in Solid Works, Sketchup, Fusion 360. Rhino is the only one you buy and use, no subscriptions. Used Rhino4 for years up till a few months ago. Upgraded to Rhino8 commercial for less than a year of Fusion.

As you can see, picked up some nice looking carbon tube and started cutting pieces. Watch for future updates, when its running I will make a parts list. Maybe make a couple arms to sell if there are people wanting them.

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