The moment is getting ever closer to when I stary my jrgo build,I have started accumulating bits and pieces.The main question now is - I am going to use my machine for guitar making and speaker cabinet building.So which steppers should I use - keep seeing nema 23 / 34 and uni polar / bi polar - Just a bit confused

The moment is getting ever closer to when I stary my jrgo build,I have started accumulating bits and pieces.The main question now is - I am going to use my machine for guitar making and speaker cabinet building.So which steppers should I use - keep seeing nema 23 / 34 and uni polar / bi polar - Just a bit confused

I haven't looked at the jrgo plans recently but I believe that unit works well with larger nema 23's. I would have to think that 34's would be overkill. Uni-polar/bi-polar depends on the driver circuits that you plan on using. The drivers also have to be matched to the motors for current requirements as well as to an appropriate power supply.

Chris

I would look at www.hobbycnc.com or http://www.kelinginc.net/CNCPackage.html for complete kits. These kits will include 3 steppers, a electronic drive board(s) and power supply. I plan to buy no less then a 200 in-oz stepper motor, and I'm really leaning to the 450 in-oz version which keling sells. I'm pretty sure they are both Nema 23 sized motors.

If you are capable of soldering circuit boards, and want to same some money, then Hobbycnc.com is your choice. You will be limited to the 200 in-oz stepper, but there are hundreds of guys out there with that combo on a jgro class machine.

I should add, that I don't have any direct experience yet with the Keling packages. On paper they look good. I do have a hobbycnc combo kit which I use on my Foam Cutter. I am happy with that package. But it did require me to learn some detailed soldering skills.

Look at the 260 OZ -in hybrid motors at www.HomeshopCNC.com. They will drive very well with a Xylotex 3 or 4 axis bipolar microstepper card. For a packaged solution see the 4 Axis Dual Port controller on our website at www.CandCNC.com.