CNC Tramming Arm for Dial Indicator

I liked this design I saw on Thingiverse but it wasn't even close enough to fitting my dial indicator.
8
56
0
436
updated November 11, 2023

Description

PDF

This tramming arm is designed to hold a 6mm router bit in one end and a dial indicator in the other in order to well tram a cnc or similar bed. The dial indicator in the original was quite a bit smaller than mine and so I needed to enlarge it. Since I'm not a fan of editing STL files I took inspiration from the original and redesigned it from the ground up in Fusion and I've included all my files for others to edit for specific needs. I tried to make this as parametric as possible but I'm not great at it yet. There are Fx items for most parameters such as the dial size, depth, width and overall length among more.  The one big gotcha in my design is the hole to hold the dial indicator is designed to have a 6mm threaded insert in it. It wouldn't be hard at all to make that hole have modeled threads or smaller to hold a smaller threaded insert so let me know if there is interest and you aren't familiar with Fusion 360. I used a 6mm insert because my dial indicator seems to be designed for that and I had some countersunk 6mm screws that would self center the indicator in the center of the hole. Let me know if you have questions or see something is not working.

Tags



Model origin

The author remixed this model.

CNC Tramming Spindle Bracket & Dial Holder
by adamfilip (thingiverse.com)
 

Differences of the remix compared to the original

The dial indicator in the original was quite a bit smaller than mine and so I needed to enlarge it. 

License