Inventables Community Forum

Help i'm new to this

Hi everyone,

I have bought a CNC 3018 pro to do some little projects for myself and at the same time start learning about this new world (for me).

I have set up the machine and made it work with easel, but i have 2 issue

  1. all my design are doubled when carved example, my deisgn on easel is 100mm x 50mm dept 0,4mm but when carving the outcome is 200mm x 100mm x0.8 of dept. I think is a value on the controller that i need to adjust but have no idea on which one it is.

  2. my bits break easely, I know i’m learning and that i will break many of those, but if i use a small bit it brakes, if i use a large one i hear the spindle that is under stress.

Could my 2 problem be connected to the first one as may be doubling the measuraments the carving setting become wrong?

any help is appreciated!

P.s excuse me for my english is not my main language

Yes, your steps per millimeter values need to be adjusted. These are
$100=314.960 (x, step/mm)
$101=314.960 (y, step/mm)
$102=78.740 (z, step/mm)
Your bits breaking may be because of your first issue. It makes your carve run twice as fast as it should, and it makes the bit cut too deep per pass.

Thanks for the reply, I will try tomorrow and update with results!

Hi, I have run the test with new settings, and now is half of what I design.

I used those to get almoast precise:
$100=800.000 (x, step/mm)
$101=800.000 (y, step/mm)
$102=400.000 (z, step/mm)

will have to try a bigger piece and measure all dimensions and continue setting it up

thank you for your help