Ormerod 2 Direct Drive Z axis
Description
The Ormerod Threaded Rod For The Z-Axis Always Seemed A Bit Problematic So I Decided To Upgrade It For A Lead Screw. To Avoid Using A Shaft Connector Where Space Is Tight, I Decided To Use A Lead Screw Integral To The Motor And Bought This One From Oooznest. Http://Ooznest.Co.Uk/3D-Printer-Electronic-Parts/Motors/Acme-Screw-Nema17-Stepper-Motor Initially I Went With The Standard Brass Nut But Was Not Happy With It So Changed It Out For The Delrin Anti-Backlash Block. Http://Ooznest.Co.Uk/Acme-Anti-Backlash-Nut-Block?Search=Anti%20Backlash%20Nut The Nut Block Was Far Too Tight So I Screwed It Onto An Offcut Of The Lead Screw And Gently Heated The Lead Screw Until It Ran Free. Clearances Are Tight And If You Use A Different Solution For The Your Sensor You May Need To Make Adjustments. My Sensor Solution Can Be Found At Https://Www.Thingiverse.Com/Thing:1545576 The Lead Screw Is On The Same Plane As The Original Y Axis But Is Further Away From The Motor In The X Axis. To Accommodate This I Had To Make A Slightly Longer Homing Pad. Changes To The Config File Needed M569 P2 S0 ; Set Z Motor Direction M92 X87.4890 Y87.4890 Z400 ; Set Axis Steps/Mm For Tr 8*8 Warning! The Original Ormerod Solution Allowed The Z Nut To Pop Free If You Crashed The Head Into The Bed. This Solution Means That Is No Longer The Case, All You Have Is The Small Amount Of Lift Allowed By The Rotation Of The Head On The Rail. Https://Pinshape.Com/Items/18502-3D-Printed-Ormerod-2-Tr8-Directdrive-Z-Axis-Redesign Was A Source Of Ideas For This Upgrade.
Statistics
Likes
5
Downloads
0