There are other ways to satisfy your need.. Longer lead/ball screws are NOT cheap.I recently purchased a 3018 router:
Amazon.com: CNC Router Machine 3018 Pro, mcwdoit Simple Assembly Version, Desktop Wood Acrylic Plastic PCB MDF Engraving, 3 Axis with Offline Controller, Mill Bits, Working Area 11.8 * 7.1 * 1.8″ : Arts, Crafts & Sewing
Buy CNC Router Machine 3018 Pro, mcwdoit Simple Assembly Version, Desktop Wood Acrylic Plastic PCB MDF Engraving, 3 Axis with Offline Controller, Mill Bits, Working Area 11.8 * 7.1 * 1.8″: Cutting Tools - Amazon.com ✓ FREE DELIVERY possible on eligible purchaseswww.amazon.com
I would like to extend my lead screws so I can put knobs on them to more easily turn them manually. I need 8mm, 2-Start 2 mm pitch (4 mm lead). Does anyone know of a source? In all my searching most everything I find are 4-start. I am able to find* the longest stock length for my machine (x-axis, 365mm) which would not be long enough to extend out for the knob on the x-axis. Does anyone know of a source for this part except longer?
*3018-PRO CNC Router | X-Axis Lead Screw
e.g.
1. Learn to use the jog keys (or a dial pendant) to move the motor shaft electrically.
2. Change your stepper motors to models with with dual shaft so that you can have knobs. (all mine are have dual shaft). But REMEMBER knobs only works when power is OFF.
