Hello all, I am building my second router machine and am ready to order my lead screws and have a couple of questions first.
Here are the basics.
The machine is steel construction, Gantry weighs about 50lbs, I'm running Keling 425 oz/in steppers, 4030 drivers, a 24v power supply(may switch to 36 or 48v). I will be using this machine to rout wood and plastics.
My current machine uses 1/2-10 single start Acme's and will run at 40-50 ipm without problems. I would like my new one to run at 100-150(or more) for routing with possibly higher rapids. I was going to order 1/2-8-4 start Acme's from Roton but got confused with torque to lead calculations.
Is it better to go with a .500 lead and run the motors in the 200-300 rpm range, or possibly a .250 lead which would run the motors at approx. 400-600 rpm's to achieve this? I want the most ipm's I can get but the higher lead takes nearly 3 times the torque that my current machine does. while the .250 only takes a slight amount more torque than my current setup.
(I have also considered more volts to the motors). Which would be the best way to reach these speeds with these motors? I would really like the highest speeds possible without overworking the motors. I may have plenty of torque to spare but I don't know.
Please let me know what you would recommend? I'm no engineer so any advice on this will be GREATLY APPRECIATED!! Thank you very much, Jeff