I scored several 20mm diameter 20mm lead NSK ballscrews from a parts queen we are removing from work. Is this too aggressive a lead or pitch for a router? The ballscrews already have bearings and timing pullies on the ends, but I'm not sure what the pitch is on the gears. It measures 5mm from tooth to tooth, but checking on the net it would seem there are several different 5mm sizes out there. The robots I pulled the ballscrews off of were running on NSK linear bearings model number LGY25. Would these work with a router. The track seems like it would be susceptable to contamination, but they are very heavy. NSK products work great in the semiconductor industry, but I'm worried about using them in "dirty" environment, but what the heck they were free .
The top Pic is going to be the Z-axis, the assembly in the middle is mounted on a nice cast iron plate, so I thought it would work for the gantry. I must weigh 20 lbs though . I scrounged three Vexta pk268-01A motors with mounts that with give me 187oz in unipolar mode or 240oz in bipolar. Is that enough for a router? I'm hoping to get a 34" x 36" work area. Any advice would be appreciated. I'm an Equipment maintenance tech at a semiconductor fab in Hillsboro, Oregon with a lot of experience with precision robots and stepper motors, but none on a cnc router.
Thanks,
James