CNC Machining a Delrin Anti-backlash Nut
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- เผยแพร่เมื่อ 5 ก.พ. 2025
- Much more rigid that the spring anti-backlash nuts you sometimes see on 3d printers, this nut block is also low friction, making it a great choice for a small CNC machine where you can't justify the cost of ballscrews. You can buy these nut blocks on the openbuilds part store, or make them yourself using the CAD models they supply.
For probing the part, I find a touch probe to be way quicker and simpler than feeler gauges or pins/dowels. You might give one of them a try.
Is there a particular touch probe you recommend?
@@imnoexpertbut I've only ever heard good things from The Maker's Guide's Triple Edge Finder. Dog River Tools makes a clone of the Carbide3D Shapeoko touch probe that would work well too. And the Triquetra touch probe is another great option.
www.themakersguide.com/home/products/triple-edge-finder-2
www.amazon.com/Dog-River-Tools-Touch-Probe/dp/B07TBRFQWQ/ref=sr_1_2?keywords=shapeoko+touch+probe&qid=1571922618&sr=8-2
triquetra-cnc.com/product/triquetra-p3-auto-zero-touch-plate-triquetra-tool-box/
@@imnoexpertbut I personally made my own but will be buying the Dog River Tools one here soon for a higher quality product.
After you flipped it, you probably could've picked up the fixed jaw for the Y-axis (assuming your vise is indicated). I think I would've used a 1-2-3 block (or something) to pick up the machined edge of the X-axis as well. Then in your "bottom" program, set the origin to the upper left of the part instead of the stock.
Good advice!
what did you use to tap the leadscrew?
8mm trapezoidal 4-start (8mm lead, 2mm pitch). I found a tap on robotdigg: www.robotdigg.com/product/794/ACME-Trapezoidal-Lead-Screw-TAP-for-screw-thread
size lead screw 10mm? and how u make thread for lead screw?
8mm trapezoidal 4-start (8mm lead, 2mm pitch). I found a tap on amazon.
can u share the tap link??
@@AmeenHandyMan I double checked and I actually bought it from here, the Tr88 (Tr8*8 P2*4) one: www.robotdigg.com/product/794/Tr3.5,-Tr4.76,-Tr5,-Tr8-or-Tr10-Trapezoidal-Screw-TAP
What program are you using for your cam paths?
Fusion 360.
@@imnoexpertbut thank you