Advice DC motor for Arrand spindle

Advice DC motor for Arrand spindle

This topic has 2 replies, 2 voices, and was last updated 15 December 2023 at 18:10 by mike robinson 2.

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15 December 2023 at 10:09 #699417
mike robinson 2
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@mikerobinson2
I have acquired a nice Arrand milling / drilling spindle with a 1MT taper and I will mount this on my Myford. The chuck capacity is 6mm and the ER11 collets go up to 7mm. With my Myford dividing head mounted on the lathe spindle I can already index successfully and with the Arrand spindle I will be able to machine cross holes or radial slots without removing parts from the chuck.

I would appreciate guidance on the motor size, I think 120-150 Watts is enough (24V 7 Amp) and with PWM speed control I won’t lose torque at lower speeds. I prefer a “quality” motor to minimise noise and vibration. All recommendations for motor, PWM and power supply appreciated. Thank you….
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15 December 2023 at 12:22 #699465
Roderick Jenkins
Participant
@roderickjenkins93242
Hi Mike,

I’ve used a 120W sewing machine motor which works fine but the foot control is a little awkward. Be sure to order the correct rotation direction.

I think this is a better solution which I use on my home made tool post spindle

https://www.ebay.co.uk/itm/256130971430?hash=item3ba2987726:g:zhoAAOSwV6VfU9NI

Hope this helps,

Rod
15 December 2023 at 18:10 #699527
mike robinson 2
Participant
@mikerobinson2
Hi Rod, really appreciate the effort in your response and your photos, I had also found the same Ebay listing but seeing your installation has given me the confidence, thank you!
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