Sherline Metric Lathe Leadscrew Backlash Lock Upgrade
Description
- Sherline Metric Lathe Leadscrew Backlash Lock Upgrade
- Reduces backlash to .001 inches
- Installs easily with no holes needed
- Enhances both manual and CNC machines
- Secures leadscrew in multiple positions
- Includes locking lever for precise control
The Sherline Metric Lathe Leadscrew Backlash Lock Upgrade is an innovative modification designed to address the critical issue of backlash in CNC operations. This upgrade allows for adjustable control over the leadscrew backlash, enabling a reduction to as little as .001 inches. The installation process is straightforward, requiring no additional holes, and involves replacing the saddle nut securing screw with a longer one that passes through a hole in the locking plate.
This system enhances the functionality of both manual and CNC machines, making it a valuable addition even if the saddle nut is not worn out. The locking lever and securing arm provide the flexibility to secure the leadscrew in locked, unlocked, or any intermediate position, thereby offering precise control over backlash. The upgrade includes a new lock plate that attaches to the saddle with a longer bolt, and the lever arm is secured in place using a socket head cap screw.
Note: Ensure proper installation to maintain machine safety and performance.
- 1x Sherline Metric Lathe Leadscrew Backlash Lock Upgrade
- 1x New lock plate
- 1x Longer bolt for saddle attachment
- 1x Lever arm
- 1x Socket head cap screw

- Adjustable control over leadscrew backlash
- Reduces backlash to as little as 0.001 inches
- Easily installed with no new holes required
- Compatible with both manual and CNC machines
- Allows leadscrew to be secured in locked, unlocked, or intermediate positions
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Refund Policy
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Please review the Return Conditions, Return Exceptions and the process on How to Request a Return Authorisation (RA) before initiating a return request.
United Kingdom consumers exercising their statutory Right of Cancellation are subject to different conditions. See the Statutory Right of Cancellation.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
- A valid Return Authorisation (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
- The RA number is valid for 30 days. The returned item must be received within that period.
- The RA number must be included with the return.
- Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
- Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
- Refunds are processed within 7 days after receipt and inspection of the returned item.
- A £100 cleaning fee may apply to domestic robots returned in used or unclean condition.
- A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
- Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
- Consumables * — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tyres, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
- Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
- Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odour-absorbing products). Not eligible for return once unsealed.
- Build-it-yourself products and items requiring customer assembly * — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
- Digital Goods, Software, and Apps * — Final sale only, due to licensing restrictions.
- Clearance Items * — Products identified as clearance or final sale, including end-of-life or discontinued items.
- Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
- On-Demand Items * — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfil a customer request.
- Professional & Specialized Equipment — See the Professional & Specialized Equipment Warranty page and Professional & Institutional Buyers (B2B) section in the Terms & Conditions.
* United-Kingdom consumers retain their statutory Right of Cancellation on these items. Its exercise is subject to the conditions and exclusions set out in the Statutory Right of Cancellation, and any reimbursement may be reduced to reflect a loss in value resulting from handling beyond inspection.
How to Request a Return Authorisation (RA)
While the same return policy applies, these orders require a separate contact process for returns.
- RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
- Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".