Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: tivoi on January 19, 2008, 05:28:37 AM

Title: Spindle speed control
Post by: tivoi on January 19, 2008, 05:28:37 AM

how to automatic control spindle speed with this motor? any try it?

(http://www.kaizenbonsai.com/shop/images/pt1036_makita.jpg)

Title: Re: Spindle speed control
Post by: jimpinder on January 19, 2008, 03:41:48 PM

I take it your idea is to  hold this in the Z axis and use it for drilling or something similar

Makita is good equipment - BUT - can you control the speed of the tool as it is.
I do NOT mean by pulling a trigger. Is there any system attached to the tool to control the speed.

The enquiry on your other post gave a brief idea of turning it on and off, but speed control is something different.

Mach 3 can control stepper motors without any problem.
Mach 3 can also put out a PulseWaveModulated signal to control Digispeed and similar motor driver boards.

You might be better served finding a motor on which you can control the speed easily, and then fitting a chuck or similar on it, rather than trying to control a hand tool.

Title: Re: Spindle speed control
Post by: tivoi on January 19, 2008, 06:29:35 PM

Thanks jimpinder

i have one ideas

this is oginal speed control of makita tools

(http://www.electronics-project-design.com/images/LightDimmerSchematic.GIF)

I'' replace varesistor by LDR

(http://img.alibaba.com/photo/11285760/Cds_Photoconductive_Cell_Photoresistor_LDR.jpg)

Then using PWM spindle speed genorator analog and control white led >> LDR >> motor speed

is it possible?

thanks you agian