Upgrade your teeny tiny X gantry lead nuts to these suregrip anti-backlash power lead nuts!


3D Comparison shown here


3D parts list shown here



Continue to use your existing 8mm lead screws but stack some mighty grip on them by putting these powerful anti-backlash lead nuts onto your X gantry.





WorkBee CNC SureGRIP Upgrade V2 - X Gantry only, retain 8mm leadscrews

  • 1 of Power Lead Nut kits (8mm Power Lead Nut & Power Mount, & associated hardware)

    1 of Steel Drill Guide

    4 of 15mm bolts and locknuts (to attach the drill guide)

    7 of 65mm Low Profile Bolts

    Spacers, 4 of 6mm, 1mm and 0.5mm for each wheel set (7 sets)

  • For experienced CNC DIY'ers the change to these suregrip anti-backlash leadnuts may be easier than you think.

    REMOVE the X gantry you are working on from the WorkBee CNC

    Step1: Place the X gantry somewhere you find comfortable where you know you can perform some maintenance.

    Step2: Remove all the wheel sets, try to keep ALL of the parts in the same sequence

    Step3: Attach the steel guide plate to the back plate

    Step4: Drill the centre holes using the 5.5mm drill. Clean as necessary. Remove steel drill guide.

    Step5: Attach Powermount, do not fully tighten!

    Step6: Insert the 65mm bolts into the Back X gantry plate, stack the gantry plate on its side with the bolt head on the flat surface.

    Step7. Add the 6mm, 1mm and .5mm new spacers to each bolt

    Step8. Add each wheel set in turn to each bolt

    Step9: Add the inner gantry plate

    Step10: Add the locknuts and tighten

    Attach Z gantry and rebuild onto WorkBee CNC X axis, threading the 8mm leadscrew into the lead nut as necessary.


    Now gradually tighten the Power Mount bolts, constantly moving the X gantry back and forth untill all bolts are tightened.

Contact Us

EMAIL : admin@cncgear.co.uk

Write to us:

Roboteer Ltd

16 Fieldfare Gardens, Guisborough, TS14 8NB


Customer Service

Terms & Conditions

Privacy Policy

Contact Us

Please see the FAQ, for other details.

We Accept