DIY Vacuum Table

[templecorran]

Thanks Lee, that design is much better than what I had conceived. Though I would make one more shallow, that 38mm vac port makes it very tall. Using their vac break out box, should be down at the 20mm height!

John

[templecorran]

Apart from the obvious choice of using a vacuum cleaner for the motor, what other suggestions can we come up with?

Vacuum cleaner motors have some basic failures when it comes to vac tables: continuous or long time use can cause the motor to burst into smoke because the motor needs airflow to keep cool. A good vac table won't have much airflow.

I was looking at breaking up a vacuum cleaner to get the impeller and also maybe putting a fan on the other endof the shaft for cooling.

I have a spare tumble dryer motor that needs the bearings replaced, I thinks it might be a good choice.

The biggest factor is NOISE. I need a quiet system. Already I have to shut everything down at 9pm to avoid complaints from the neighbours.

As for the spindle: the B&Q 1020W router is too noisy as it is!! :(
I've studied Jeremy's excellent thread on the DC brushless motor DIY spindle and think it'd be a good solution for my too noisy environment.

:feedback:

John

[zim]

Hi Corran,
I don't know if you need a spindle over 1000w but I bought a Millwaukee die grinder it's 500w but built like a tank and reasonably quiet plus variable speed. I can't help on the vacuum front though.
zim.

[templecorran]

Thanks for the heads up.
I had a look at those, the one I fancy is discontinued. The short nosed one with the 43mm ring mount.
However, they appear to feature a 6mm collet, which will not do me at all. All my bits are either 1/4" or 1/8", and I have a right few!!

I'll stick with my B&Q 1020W £25 wonder for now.... until I can reproduce what Jeremy did with DC brushless motors and so on.

John