Uploaded January 2017 | Updated September 2026, 3 hours ago
Brook shows how to swap out the old 1/4" acme rod for an improved 8mm 4 start Acme rod on a Printrbot Simple. Less than 20 minutes and you are good to go. Don't forget to change the steps per mm for the z axis. And be mindful that your z offset may have changed. Make sure your ending gcode moves the hotend out of the way after a print, too.
Z Lead Screw 4-Start Upgrade available at printrbot.com/shop/z-lead-screw-4-start-upgrade
NOTE: After installing your Z Lead Screw 4-Start Upgrade, you will need to update your steps/mm. Enter the following command lines in your control software.
M92 Z400
M500
M501
Brook shows how to swap out the old 1/4" acme rod for an improved 8mm 4 start Acme rod on a Printrbot Simple. Less than 20 minutes and you are good to go. Don't forget to change the steps per mm for the z axis. And be mindful that your z offset may have changed. Make sure your ending gcode moves the hotend out of the way after a print, too.
Z Lead Screw 4-Start Upgrade available at printrbot.com/shop/z-lead-screw-4-start-upgrade
NOTE: After installing your Z Lead Screw 4-Start Upgrade, you will need to update your steps/mm. Enter the following command lines in your control software.
M92 Z400
M500
M501
