Anet A8 Y Axis Leadscrew Conversion by 3DPrintVids

Last crawled date: 3 years ago

25/03/2018 UPDATE: Well, thats it, it's done, all the parts are designed, the drill holes templated, and it works, firmware change instructions are below... The only thing that may change is the addition of some frame bracing in the middle where i have cut out the centre, just need to do some cable tidying then it'll be time for a test print...
This is an Y Axis Leadscrew conversion for the popular Anet A8 3D Printer...
The plan is to run a bearing supported leadscrew with the Y axis motor mounted on the front.
Parts:
4 x M4 x 16 mm - For Lead Screw Nut Holder to Carriage
2 x M5 x 25 mm - For Front Bearing To Adapter Plate
2 x M5 x 20 mm - For Rear Bearing To Rear Frame
4 x M3 x 40 mm - For Stepper Motor
2 x M3 x 30 mm - To Affix Adapter To Base Board
1 x Leadscrew 8 x 400mm
2 x 8mm Bearings
1 x 8mm Anti Backlash Nut
Cable Extension JST-XT 4 Pin OR Cable/Solder/Heatshrink.
You will need to modify your firmware/speeds:
M92 Y400.00 - Set Steps Per MM to 400
M203 Y40.00 - Set Max Feedrate to 40 units/s
M201 Y100 - Set Max Acceleration to 100
M500 - Save Settings
M501 - Recall Saved Settings to check they are correct...
With a lead screw you can no longer pull the bed forwards, so if like me you want the printer to move the build plate to the front at the end of the print...
Add this to your end of print code box in your slicer/controller software - This moves the bed to the forward position but with no overhang...
G90 ;absolute positioning
G1 Y175;
M84 ;steppers off
Please leave any comments/suggestions below...
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