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Ballscrew kits use 5/8" Thomson ballscrews with a .200 pitch. Here is a link to the Thomson catalog page with detailed information on the ballscrews. All ballscrews are now polished, they are no longer black, but shiny sillver as shown in the kit #4 photo. 4-28-10 FREE SHIPPING For a limited time recieve free shipping to the USA and flat rate $50 shipping (or less) outside the US! |
| Kits #1 and #2 require an extended X axis leadscrew that comes with the power table feed. The Grizzly mill we purchased came with it. If you have a shorter, version of the X leadscrew, don't worry, they are only $9.95 from Littlemachineshop.com click HERE to go directly to the extended screw order page. If your motors do not have a 1/4" shaft, let us know so we can ship matching couplings. | |
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Mini-Mill CNC kit #1 - Three axis conversion |
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This Kits includes everything, three NEMA23 motor mounts, thrust bearings for Y/Z axis, shaft collars, lovejoy spider motor couplings, a BALLSCREW for the Z axis, and metric cap screws. You do not need to modify your mill to install this kit. This kit can also be upgraded to ballscrews on the X & Y axis. |
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Mini-Mill CNC kit #2 - no 'Z' axis |
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This kits includes, two NEMA23 motor mounts for the table, thrust bearings for Y axis, shaft collar, lovejoy spider motor couplings, and metric cap screws. You do not need to modify your mill in any way to install this kit. Get this kit if you want to make your own custom Z axis motor mount, This kit makes use of the stock leadscrews. |
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Mini-Mill CNC kit #3 - 'Z' axis only |
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This kits includes, one NEMA23 motor mount for the Z-axis, thrust bearings, a BALLSCREW, shaft collar, lovejoy spider motor coupling, side mounting block for the ballnut, and metric cap screws. You do not have to modify your mill to install this kit. Get this kit if you want to make your own X-Y motor mounts. |
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Mini-Mill CNC kit #4 - with X-Y BALLSCREWS |
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Includes everything from Kit #1 but with BALLSCREWS for the X and Y axis. Extra hardware for installing the ballscrews is also included. |
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Mini-Mill CNC kit #5 - with X-Y BALLSCREWS |
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Includes everything from Kit #2 but with BALLSCREWS for the X and Y axis. Extra hardware for installing the ballscrews is also included. |
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Mini-Mill CNC kit #6 X-Y BALLSCREW UPGRADE |
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This includes 2 BALLSCREWS for the X-Y axis and all hardware needed to mount the ballnuts under the table. You can use this kit if you previously purchased kit #1 or #2, and you now want to upgrade to ballscrews. |
The X-Axis extension is now shipping with kits #4 & #5. You will not loose any travel on the X-axis with these kits. Kits may take up to 2 weeks to ship. If you have any questions, please email us!
An installation guide for the mini mill kit is in progress. Added a couple videos milling some junk aluminum on the X2. Feedrate was 20 IPM at 2500 RPM. |
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You will need DIVX to watch these videos. Click HERE to download it FREE! |
Ballnut options |
Heli-Cal Coupling - ZERO backlash |
