Instead of making bearings I would look at what Igus and others have to
sell.
They are not that expensive and you have plenty of other things to do.
Regenerative Vacuum blowers work well for vacuum hold down work. They
are still power hogs and quite noisy without mufflers on the outputs.
I think this way
Pretty much exactly that. Plastic ball valves for PVC water pipe would be
cheaper, unless you're building a table for heavy industrial use and will be
turning the valves a large number of times per year.
On Sunday, October 7, 2018, 4:34:21 PM MDT, Leonardo Marsaglia
wrote:
Hello
Hello Gregg,
Something like this is what you have in mind?
http://www.phoenixcnccreations.com/our_shop_gallery/Vacuum%20System/2%20vac%206%20zone%20plenum_ball%20valves4.jpg
It's a nice feature, and seems cheap and not hard to implement. That's
probably the way I'll do it.
El sáb., 6 oct. 2018
You could make the vacuum table with several zones, connected with a PVC pipe
manifold and ball valves to close off sections you're not using. That would be
easier than keeping stuff around to lay over unused sections of the table.
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Emc-users