Wiring Help

[Toddy]

Thanks Jonathan it helps loads as i`m a dumbass with elictronics, Yes the motors are wow, thats what happens when you go overboard by accident but will have no problems with not enough torque, My main problem now is building an MDF cnc router that takes the waight, Im only needing a cutting area off two ft by four ft but the motors are 5.3kg each. Now need a rethink of the build.

Hope to get more info as needed, cheers

[Jonathan]

I think your problem with those motors for that size router is going to be speed. Big Nema 34 motors, such as the ones you have, wont go particularly fast on 70v. Not as fast as say the 3Nm nema23 which should be plenty for the size of router you're building.

The advantage you have with big motors is you can use a 4:1 pulley (costly unless you make it) and still have the same torque as the 3Nm motors that I'm using at a good speed. But then you loose resolution...it's swings and roundabouts really.

Generally you go for the smaller motors since it's a lot cheaper. I take it it's too late to swap them for some 3Nm ones, such as these:

http://www.slidesandballscrews.com/s...ml?cPath=45_81

I think you'd end up better off and have some money to spare for others expensive things, like a kress spindle for instance (next on my wishlist).
Wish I could afford to buy 12Nm motors for the X axis on my big router!


Are you OK with connecting the breakout board?