All you need to do is remove the two leadscrews and the y-axis mounting block and replace them! Pretty easy! The installation takes less than 15 minutes. Sorry, we really would like to guarantee zero backlash, but the best we can promise is that the nuts are adjustable to reduce backlash.Ĭlick here to read more about backlash and lead error. We have found this to be more of a "trial and error" method to "dial in" backlash to a point where hopefully you're happy with the performance. We would like to promise truly zero backlash, but in our testing, we were more likely to get repeatable backlash at between 0.003"-0.001". On the other hand, if you leave the nut loose (you'll notice play), you can really get your rapids moving fast, but you'll have severe backlash. In short, if you tighten the nut backlash screws to the point where you can't rotate the screw by hand, you may very well achieve zero backlash, but your motors and your hand won't be able to crank the handles on your mill. There's a trade-off between friction and backlash reduction. This will greatly reduce friction and allow for faster rapids. If you are planning on making your mill cnc-only, we recommend the ballscrew kit (coming soon).
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If you have already performed a CNC conversion based on our plans or your own design and still use the machine for manual machining, this upgrade offers a good compromise between the stock leadscrew/bronze nut and ballscrews/ballnuts in that it's more accurate than the stock setup and does not backdrive like ballscrews do. We offer this upgrade path to aid in reducing backlash and increase the "smoothness" in motion. Well, if you're content with your mill as-is, there's really no need to quite frankly.
Shipping charges extra and will require payment once we receive your order. *Ballscrew kits and plans are coming soon too* Improve the motion and accuracy of your mini-mill in your X/Y travel with the ACME leadscrew and "anti-backlash" acetal/delrin leadnuts. Rent Mill & Lathe DVDs at Smartflix | Great aluminum & steel prices at OnlineMetals ACME LEADSCREW KIT FOR THE MINI-MILL Post a link to your website or view other hobby and machine and metalworking websites for free.
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