Initial cut 30% larger than expected

Troubleshooting
1

I finally got around to installing my Z-axis kit, updating firmware and getting everything re-calibrated. I decided to cut a new sled because my first attempt had major cosmetic issues, but when I went to cut the new sled, I found:

  1. The sled printed 30% larger than my previous attempt (17.5" on my original attempt (.8x firmware/GC) to 22.75" on my next pass

  2. My Screw holes were much larger than anticipated (because I picked “inside” vs. “outside” in Makerbot.

  3. My screw hold went clean through (no recess)

I’m going to retest some other shapes, but I was curious to see if anyone else had anything like this?

P.S. The Z-Axis kit is a life saver!

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2

Did you use MakerCAM to generate the gcode? I have seen a similar issue when MakerCAM is loading a file generated from inkscape.

The solution is to click Edit -> Edit Preferences in MakerCAM and then change the SVG Import Default Resolution to 96

image
image.png1366×623 38.4 KB

If you are seeing the issue with the file for the sled downloaded from the github repository I will fix the file so that it loads correctly by default.

4 Likes
3

I DID use MakerCAM! I’ll try changing the resolution to 96 or if you re-save the file before I get a chance, I’ll test the new one for you.

And thanks so much for the quick reply!

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