I have changed my slide/z carriage and this has got a 16turn inch lead screw.
How and what do I need to change to get this to run correctly ? I had the acme lead screw in the original setup
Check out this thread, there is alot of good info. I used it when i did mine.
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Thank you 
Assuming you’re using GRBL the variable for Z-axis steps/mm is $102. NEMA bipolar motors are typically 1.8 degrees per step, which gives 200 steps per revolution. So…
16 revolutions/inch * 200 steps/revolution * 0.0393701 inches/mm = 125.98432 steps/mm
In the USG or Easel command line, enter $102=125.98432. This is assuming that it is direct-drive. If there’s a gear ratio, then multiply appropriately.
Also, never fully trust the data sheets, always measure your machine’s actual travel and adjust the steps/mm if needed. Calibration is always an iterative process.
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Thank you
Thank you
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Im probably not the sharpest knife in the drawer when it comes to these things 
Think there is something im not getting right here…after iv entered these settings (125.98) i try to move 1mm in universal gcode sender and it only moves 0.48 mm,this cant be right ??? what am i missing ??
Btw i use picsender to change my settings
Hei, prøv $102 = 262,45
Mulig jeg er på bærtur 
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Nice I ended up with a value of 187.600 still not finished fine tuning it.Will try a bit more tomorrow.A big thank you for all the help 
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