Accuracy Test Program?

MR-1
1

Does anyone have a simple gcode program that can be used to test accuracy of the MR1?

2

Just sweep a 2 4 6 or 1 2 3 block with an indicator like it says in the setup manual.
Adjust the compensation, like it says and you are on your way

2 Likes
3

Thanks @Bigdaddy2166. I was just looking for another way of verifying. during actual machining, similar to what some of 3D print guys do.

4

yea, draw up a 1x1 or something cut and measure. you might go larger to also check squareness

1 Like
5

Sounds good. Thank you.

6

There’s the good 'ol “diamond circle square” test.

7

What’s the diamond test?

8

You should do a web search, there is a ton of info. Simple explanation is to cut a part with a square base, then a diamond shape, and then a circle shape. All with standard dimensions. Then measure with calipers to see how accurately the machine cut the part.

9

Very nice. Thanks for the recommendation. LMS should include this file with the MR1.

https://grabcad.com/library/square-circle-diamond-1#!

1 Like
10

I recommend starting with a 123 block or similar like they recommend. I believe if there is even a slight deviation and tool diameter, you will be adjusting your machine to that specific tool.

11

For the record I dont think the compensation does f$%^ all for dialing in the axis accuracy. It shouldn’t live adjust the DRO it should rewrite the firmware