Vacuum pump

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Forum topic by txn posted 07-27-2019 05:45 PM 531 views 0 times favorited 3 replies Add to Favorites Watch
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147 posts in 2921 days

07-27-2019 05:45 PM

I’ve been absent from here for awhile but am back now and boy o boy do I have some news and stories that I’ll tell in a different post, I’ve got a harbor freight vacuum pump and wondering how I can convert it to work for a vacuum press. Has anyone done this?

3 replies so far

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8135 posts in 2051 days

#1 posted 07-27-2019 06:07 PM

Check out Joe Woodworker.



-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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605 posts in 5255 days

#2 posted 07-27-2019 06:21 PM

You can connect your vacuum pump directly to a vacuum bag for veneering work. The pump will run continuously, but that should not be a problem. I’ve done a lot of veneering like that. I finally built a vacuum reservoir with a vacuum switch like the one on Joe Woodworker’s site. This makes it quieter and saves wear on the pump, but not at all necessary.

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5624 posts in 2956 days

#3 posted 07-27-2019 07:24 PM

Yes, can be used.
How, depends on which vacuum pump you bought?
The single stage pump won’t easily pull enough vacuum to rip holes in veneer bag materials, so direct connection will work.
The 2 stage pump is capable of low vacuum, and will cause issues by making holes in thin bag materials. Can still be used, but you might need to add some plumbing to bleed in some air and avoid too much vacuum if you let it run continuously.

+1 Joe Woodworker.
Rich posted links to help you get some education.

Best Luck.

-- If it wasn't for bad luck, I wouldn't have no luck at all, Doom, despair, agony on me… - Albert King - Born Under a Bad Sign released 1967

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