Spitfire67
New Member
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- 4
Hi all. I am about to build a CNC plasma table, plan is to be able to fit a 4ft x 3ft sheet size.
I am planning to use rack and pinion drives for x and y axis. I would appreciate suggestions on what size rack others of you have fitted to your tables. I would prefer to use 1 Mod rack as it is easily available and well priced, but am worried that such small gear teeth might jump on rapid acceleration, I realize that drive pinnion should be spring loaded agains the rack to eliminate backlash but do not think it good to have too much pressure to avoid excessive wear of teeth. What do you think ?
I am planning to use rack and pinion drives for x and y axis. I would appreciate suggestions on what size rack others of you have fitted to your tables. I would prefer to use 1 Mod rack as it is easily available and well priced, but am worried that such small gear teeth might jump on rapid acceleration, I realize that drive pinnion should be spring loaded agains the rack to eliminate backlash but do not think it good to have too much pressure to avoid excessive wear of teeth. What do you think ?