Search found 51 matches

by joejinky
Mon Mar 23, 2020 5:36 am
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

I have built the base for the vac table out of oak planks on edge, with 1/2" plywood over the top. I will construct a frame on top of that which will create a cavity that the vac pump will suck the air out of. On top of that, a series of adjustable circular vents that can be individually opened or c...
by joejinky
Tue Mar 10, 2020 6:00 pm
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

That is very helpful. Thank you!

Joe
by joejinky
Tue Mar 10, 2020 5:17 pm
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

Wow. Were these 3/4 MDF sheets modified (pressed surfaces removed?) or were they fresh out of Home Depot 3/4" MDF sheets? De-skinning 6 sheets (12 sides) of MDF seems like a really tedious job. That's 8 to 10 hours of my time I'd like to keep to myself. :D Just your average 1 lb per sq ft per 1/4" ...
by joejinky
Tue Mar 10, 2020 5:16 pm
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

So ... I don't know a thing about love ... er ... VACUUM PUMPS! I am looking at them on Amazon. Do they have duty cycles, or can I turn one on and leave it running unattended for five or ten hours at a time without worrying about fires and other disasters? Can you point me to a good pump? I prefer "...
by joejinky
Tue Mar 10, 2020 4:56 pm
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

I can't imagine trying to maintain suction over a 5x10 (50 sq. ft.) area simultaneously. I once had six sheets of 3/4" MDF temporarily stacked on our 5x9 machine (which already had a 3/4" spoilboard). For amusement's sake I turned on our 10HP Becker pump. The pump reasonable well still held down a ...
by joejinky
Tue Mar 10, 2020 3:50 pm
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

With a 5 x 12 you will need something like 20 hp of vacuum. Typically two 10 hp pumps. If they are regenerative pumps double the hp required. I recommend separating the table into zone with there own valves. The table is 5x10. I can't imagine trying to maintain suction over a 5x10 (50 sq. ft.) area...
by joejinky
Tue Mar 10, 2020 4:38 am
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

I've been on the computer all night, playing with ideas. I think I have come up with a solution! I got the idea from the crawl space side vents around my home. I will start on this project very soon, and post photos (maybe) of the results.

Joe
by joejinky
Tue Mar 10, 2020 4:30 am
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

A vacuum table can be great, or it can be a useless pain in the butt. Depends on what you are cutting, and the quality of your vacuum table. I find it really only works for full sheets. If you cut smaller pieces, it's typically useless, and you end up screwing the material down to the spoilboard an...
by joejinky
Tue Mar 10, 2020 2:07 am
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

Thinking outside of the box ... :roll: WHAT IF I were to use thicker pegboard for the top surface. 1. Set material onto pegboard. 2. Turn on Vac System. 3. Hand scatter over remainder of pegboard with 3/8" plastic balls that settle into open holes and plug air loss. 4. Cut material. 5. Turn vac off....
by joejinky
Tue Mar 10, 2020 1:55 am
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

The problem I see with that is when you cut through the board and expose the holes you will lose a lot of your vacuum. Using LDF/MDF doesn't cause the large changes in air flow when you cut through. So what if I used pegboard on top of the Trupan? Would I get a good hold at the pegboard holes, but ...
by joejinky
Tue Mar 10, 2020 1:03 am
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

I wonder if it is cheaper to just drive to Fort Worth from Franklin, KY Lots of distributors for Trupan -- should be something closer to your location. Sometimes even the Big Box stores have it. I will start making some calls. The price is reasonable, considering the SIZE of the piece. 5x12 = 60 sq...
by joejinky
Tue Mar 10, 2020 1:01 am
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

I actually thought about using simple pegboard. I would lay the material to be routed onto the pegboard, and cover the entire pegboard surface (exposed holes) with long strips of vinyl, which would cut off the air flow through them. I have a huge pallet of 18"x30" vinyl flooring tiles that could be ...
by joejinky
Tue Mar 10, 2020 12:39 am
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

Thanks! I am going to try to buy a few sheets of that material!

I wonder if it is cheaper to just drive to Fort Worth from Franklin, KY., or if I could save a few bucks by having it shipped. They make 5x12 FOOT panels, so I wonder what that will cost to ship?

Joe
by joejinky
Mon Mar 09, 2020 11:25 pm
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Re: Vac Table Top Surface

When using MDF you surface both sides to remove the compressed layer. It's the middle part that a vacuum works through. The lightweight grades work best. So if I buy 3/4" particle board, I have to route down both chocolate cookie sides about 1/8" to get to the creamy center of the OREO? Is there an...
by joejinky
Mon Mar 09, 2020 9:40 pm
Forum: VCarve - General
Topic: Vac Table Top Surface
Replies: 29
Views: 914

Vac Table Top Surface

Hi, I am converting my 5x10 Samson 510 table from a plasma table to a router table. I have a LOT more fun with a router than with a plasma cutter. I have removed the steel grates and crossed the steel frame with oak 1x4's, notched on the sides to set down onto the frame. Then a sheet of 1/2" high qu...