AC PWM Controller for DW660?

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regressedEE
Posts: 18
Joined: Tue Oct 30, 2012 9:58 pm

AC PWM Controller for DW660?

Post by regressedEE » Sun Nov 04, 2012 1:50 pm

Different sources suggest that AC PWM control is possible/is unfeasible. What do you think about something like this for controlling the speed on our Dewalts: AC 50V-220v 10A 13 KHz PWM Motor Speed Control Controller.

deejayspinz
Posts: 96
Joined: Wed Oct 17, 2012 9:33 am
Location: Burlington Ontario, Canada

Re: AC PWM Controller for DW660?

Post by deejayspinz » Sun Nov 04, 2012 2:41 pm

free bump - I'm interested in this as well. Would this allow speed to be controlled by Mach3?

cvoinescu
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Re: AC PWM Controller for DW660?

Post by cvoinescu » Sun Nov 04, 2012 5:15 pm

deejayspinz wrote:free bump - I'm interested in this as well. Would this allow speed to be controlled by Mach3?
No, that would allow the speed to be controlled by the black knob.
Proud owner of ShapeOko #709, eShapeOko #0, and of store.amberspyglass.co.uk

sea2stars
Posts: 93
Joined: Mon Apr 09, 2012 9:54 pm
Location: Cromwell, CT

Re: AC PWM Controller for DW660?

Post by sea2stars » Mon Nov 05, 2012 3:25 am

Looks like it would more suited to control an AC fan and you couldn't do much at slower speeds?

This might be a better option if you don't mind shelling out $40 and soldering.

Unfortunately it gets more expensive from there if you want decent torque at lower RPMs. Variacs. Super PID.

levlandau2
Posts: 187
Joined: Tue Apr 17, 2012 1:52 am
Location: Minneapolis, MN, USA

Re: AC PWM Controller for DW660?

Post by levlandau2 » Mon Nov 05, 2012 3:43 am

I use a router speed control box with a black knob on it. The speed control is ok and does change the speed of the DW660. However, it does seem (I have not measured this so I don't know), that there is less power/torque at lower RPM. However, this is better than no speed control at all.

In reality I want to have a PID controller connected to a RPM sensor, so that the spindle speed can be controlled reliably. I know superPID is out there, but I really want to go the open source route with this.


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phlamingo
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Re: AC PWM Controller for DW660?

Post by phlamingo » Tue Nov 06, 2012 9:10 pm

Generally speaking, the woodworking press and the router manufacturers recommend that you don't use an external aftermarket speed controller for a router. The motor isn't designed for an external control.

However, that is not to say that it won't work, just that it may shorten the life of your motor.

-Phlamingo
---
ShapeOko Batch 2, Number 571, dual-Y motors, Y belts outside, odd anchors. Not operational at the moment: needs rewiring.

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