This CNC Accuracy Test Sample is meant to test the accuracy and the limits of your CNC machine.The model was created with compatibility with the Makera Z1 in mind and needs a aluminum plate with 5mm strength and at least 56mm depth and 86mm width as a material. A plate with bigger x/y dimensions is always possible with the pre-sliced paths. Make sure to always add a at least 1mm thick waste board below the working material.

The Model has quite a lot of features to test:

Overall dimensions: 40×70×4mm
Wall strength (top left): 3mm/2mm/1.5mm/1mm
Extruded text test on top right
Floor thickness test (bottom right): 0.2mm/0.4mm/0.6mm/0.8mm/1mm/1.2mm
Round holes test (bottom center): 2mm/3mm/4mm/5mm diameter
Angled slide test (bottom center): 0.2mm from top - 0.2mm from bottom
Engraved logo test
Side notches around the surrounding face (currently not engraved, but present on the STEP file to be used for testing with special CNC tools)

The process consists of many paths but uses just 4 tools to keep it simple. Make sure to don’t burn yourself when swapping tools at they can get quite hot while milling aluminum.

All in all this is a quite fun project where you can learn much about different tools and check out the accuracy of your CNC. And the best: You will get a great-looking sample to show off what your CNC can to.

CNC精度測試樣品

CNC精度測試樣品

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