1 Topic by hansen644

  • hansen644
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Topic: what steps per mm setting for 4 start lead screw, z axis ?

HI just upgraded to lead screws for z axis not sure what the pitch is, to set the steps per mm in the firmware?  I bought 4step lead screws off of ebay

2 Reply by widespreaddeadhead

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Re: what steps per mm setting for 4 start lead screw, z axis ?

Can you post the link to the item?

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3 Reply by hansen644

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Re: what steps per mm setting for 4 start lead screw, z axis ?

HI here is a link   
http://www.ebay.com/itm/361564574771?_t … EBIDX%3AIT

4 Reply by Tin Falcon (edited by Tin Falcon 2016-12-01 00:18:18)

  • Tin Falcon
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Re: what steps per mm setting for 4 start lead screw, z axis ?

If you turn the nut one rev how far does it move ?
Tin

FYI there is a lead screw calculator  under tools in RH

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5 Reply by hansen644

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Re: what steps per mm setting for 4 start lead screw, z axis ?

8.67 mm   I looked at RH but I do not now the pitch input?

6 Reply by Tin Falcon

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Re: what steps per mm setting for 4 start lead screw, z axis ?

steps per Millimeter: Steps/mm: 200/8.67= 23.068 mm 
so 23 mm should give a good starting point

this is for a standard 1.8 degree per step motor
a .9 degree motor is 400 steps per rev or 400/8.67   or 46 steps per mm

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura

7 Reply by Tin Falcon

  • Tin Falcon
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Re: what steps per mm setting for 4 start lead screw, z axis ?

Here I am at up too early you need to factor in for micro stepping so your step count will be higher.

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura