Testing my brushed motor controllers on a 60 kg milling machine,

General CNC CNC Routers
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Testing my brushed motor controllers on a 60 kg milling machine, without runaway protection activated… FAIL!

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Ouch

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Is it open souce i working on something like this

missing/deleted image from Google+

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looks nice! What info do you need?

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@Citrus_CNC
How to determine leadscew or ball screw step?

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@alaa_momen
The thrust force for each axis: Fthrust=2pitorque/pitch. For example, if your motor generates 1 N·m (140 oz·in) of torque, with a 5 mm ballscrew you’ll get 6.281/0.005=1256 Newtons of thrust.

Assuming that value is constant when accelerating, if your axis mass is, I don’t know, 12 kg, and your transmission has no friction losses, and that it is not pushing against anything, you’ll have an acceleration of about 10 g (a=F/m).

You’ll need to check the torque-speed curve for your motor in order to find what speed it would reach when generating the correspondig torque.

Try to find a motor/leadscrew combination that has enough torque at the speed you wish your machine to move :slight_smile: