Re: [Emc-users] Vacuum table Re: Yet another topic about gantry homing

2018-10-08 Thread Dave Cole
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.

[Emc-users] Vacuum table Re: Yet another topic about gantry homing

2018-10-07 Thread Roland Jollivet
I think this way

Re: [Emc-users] Vacuum table Re: Yet another topic about gantry homing

2018-10-07 Thread Gregg Eshelman via Emc-users
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

Re: [Emc-users] Vacuum table Re: Yet another topic about gantry homing

2018-10-07 Thread Leonardo Marsaglia
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

[Emc-users] Vacuum table Re: Yet another topic about gantry homing

2018-10-06 Thread Gregg Eshelman via Emc-users
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. ___ Emc-users