Author |
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Topic: Large update forming ABS - webbing issue, pic heavy |
drcrash
Replies: 16
Views: 12893
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Forum: Vacuum Forming & General Stuff Posted: Mon Jan 24, 2011 7:52 pm Subject: riser |
I strongly suspect that a somewhat taller riser will help a bit, even if you can't afford to have one that's actually tall.
At the problematic points, you want the riser to be fairly steep-sided.
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Topic: Large update forming ABS - webbing issue, pic heavy |
drcrash
Replies: 16
Views: 12893
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Forum: Vacuum Forming & General Stuff Posted: Thu Jan 20, 2011 2:01 pm Subject: a few suggestions on webbing |
That's an ambitious shape for vacuum forming in one piece.
I'm not sure I understand the problem it solves... does it have to be that shape, with the undercuts, and be one piece, or could you join ... |
Topic: Got vac pump...what's next? (progress update-09 Mar) |
drcrash
Replies: 69
Views: 25162
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Forum: Vacuum Forming & General Stuff Posted: Sun Jan 20, 2008 11:40 am Subject: Got vac pump...what's next? (progress update-09 Mar) |
Check out the second diagram in the first posting in this thread over on CNCzone:
http://cnczone.com/forums/showthread.php?t=38493
(That's linked from my www.vacuumformerplans.com site, BTW.)
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Topic: Got vac pump...what's next? (progress update-09 Mar) |
drcrash
Replies: 69
Views: 25162
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Forum: Vacuum Forming & General Stuff Posted: Sat Jan 19, 2008 8:11 pm Subject: Got vac pump...what's next? (progress update-09 Mar) |
Sorry my mistake
It's 40" circumference and 22" tall. The width is 12" so I suppose the radius is 6".
Somebody check my math here...
A 40 inch circumference would ... |
Topic: Got vac pump...what's next? (progress update-09 Mar) |
drcrash
Replies: 69
Views: 25162
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Forum: Vacuum Forming & General Stuff Posted: Sat Jan 19, 2008 9:59 am Subject: Got vac pump...what's next? (progress update-09 Mar) |
Are the given dimensions right? Is that tank almost three and a half feet in diameter? Are the dimensions reversed, maybe? |
Topic: LOOK WHAT I'VE SCORED FOR ABOUT $80-something.... |
drcrash
Replies: 13
Views: 6187
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Forum: Vacuum Forming & General Stuff Posted: Sat Dec 08, 2007 11:53 pm Subject: LOOK WHAT I'VE SCORED FOR ABOUT $80-something.... |
...if I convert the hose into a 1 1/2 instead of the "out-of-the-box" 2 1/2" hose, using a shop-vac converter to half the hose size (actually, half the dimension, with same horsepower). ... |
Topic: Vac-form Machine Gallery |
drcrash
Replies: 149
Views: 805947
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Forum: Vacuum Forming & General Stuff Posted: Fri Nov 30, 2007 3:21 pm Subject: itsy bitsy teeny we TJ machine |
http://youtube.com/watch?v=9NY2N2zq2TY
Kinda cute... a TJ machine for plastic about one foot square.
(I don't think that's actually an especially good idea, or the right size/shape for making ma ... |
Topic: LOOK WHAT I'VE SCORED FOR ABOUT $80-something.... |
drcrash
Replies: 13
Views: 6187
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Forum: Vacuum Forming & General Stuff Posted: Fri Nov 30, 2007 7:02 am Subject: don't buy a shop vac for vacuum forming |
Don't buy a shop vac for vacuum forming, and don't expect a high-HP shop vac to pull significantly harder than one with half the horsepower rating.
Unless something has changed, the 6.5 HP Shop-Vac ... |
Topic: Would there be any problems with a 2' x 4' machine? |
drcrash
Replies: 23
Views: 10267
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Forum: Vacuum Forming & General Stuff Posted: Sun Nov 25, 2007 9:59 pm Subject: Re: Would there be any problems with a 2' x 4' machine? |
I want to build a 2' x 4' machine, and was wondering if there might be some sort of problem with a rectangle setup vs a square.
There's no problem with non-square vacuum formers. Most vacuum for ... |
Topic: Vac Former in build progress. |
drcrash
Replies: 35
Views: 13008
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Forum: Vacuum Forming & General Stuff Posted: Sun Nov 25, 2007 11:26 am Subject: Vac Former in build progress. |
lookin good. I venture to guess you will need more than 7 gals, but I can't tell how big that platen is. A 2x2 platen would do well with 30-50 gals
You should only need a big tank for simple 1-st ... |
Topic: Filters Help |
drcrash
Replies: 8
Views: 4207
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Forum: Vacuum Forming & General Stuff Posted: Sat Nov 24, 2007 5:55 pm Subject: Filters Help |
The fitting on the pump is a 3/8 I am just having issues finding filters at a good cost for 3/8 inch. Also I will be using Metal piping like I see with the other bigger formers to be sure the opening ... |
Topic: Oven Options |
drcrash
Replies: 2
Views: 2157
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Forum: Vacuum Forming & General Stuff Posted: Sat Nov 24, 2007 5:03 pm Subject: Oven Options |
Ideally you want heating elements longer than your plastic dimension by a several inches.
You also want to have enough heating elements that are low enough power that you can space them reasonably ... |
Topic: Filters Help |
drcrash
Replies: 8
Views: 4207
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Forum: Vacuum Forming & General Stuff Posted: Sat Nov 24, 2007 4:53 pm Subject: Filters Help |
Even if a filter has very low resistance, 1/4" fittings will ensure that it restricts flow to what a 1/4" pipe can handle. 3/8" pipes won't do you much good if you have 1/4" conn ... |
Topic: My Vac Former... |
drcrash
Replies: 13
Views: 6545
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Forum: Vacuum Forming & General Stuff Posted: Sat Nov 24, 2007 12:53 am Subject: My Vac Former... |
It looks like you made an oven much the same as everyone else but I would like to know what length coils and how much you stretched them etc. Also the wiring. This is where I get confused with all the ... |
Topic: a couple of questions |
drcrash
Replies: 16
Views: 7842
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Forum: Vacuum Forming & General Stuff Posted: Mon Nov 19, 2007 2:49 am Subject: a couple of questions |
alright, is there a certain length i want it to go out or just a little bit..
To get the slant 20 or 30 degrees, you want the side to go out about half as fast as it goes down, so making the base ... |
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