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  Topic: A no weld insulated 24x32 metal oven
cod

Replies: 13
Views: 4251

PostForum: Vacuum Forming & General Stuff   Posted: Wed Dec 02, 2009 1:29 am   Subject: Re: Purpose of the fiber board


Certainly more care would need to go into wiring to prevent the oven from being conductive but it seems both space and heat distribution would be more efficient with an all metal oven.

Thanks ...
  Topic: Question About This Tank I Have....
cod

Replies: 20
Views: 3260

PostForum: Vacuum Forming & General Stuff   Posted: Fri Feb 06, 2009 2:42 pm   Subject: Question About This Tank I Have....
I posted a notice at work and got a 50 gallon water heater pretty easily.

One thing I would recommend is you make sure that the tank is free of sediment. these things tend to get residues at the bo ...
  Topic: Glue for MDF boards.
cod

Replies: 10
Views: 2517

PostForum: Vacuum Forming & General Stuff   Posted: Fri Feb 06, 2009 2:34 pm   Subject: Glue for MDF boards.
I used elmers mixed with a little water and then painted on both sides with a paint brush. Seemed to work fine.
  Topic: small or medium size vacformer basic questions
cod

Replies: 2
Views: 1157

PostForum: Vacuum Forming & General Stuff   Posted: Fri Dec 12, 2008 4:27 pm   Subject: small or medium size vacformer basic questions
I think the rule is add as much as your depth, so 17" x 10" seems about right?

this is an odd size for a frame though, so if you are going to do a lot of plastic buying you might consider ...
  Topic: Oven question
cod

Replies: 14
Views: 3576

PostForum: Vacuum Forming & General Stuff   Posted: Tue Dec 02, 2008 5:05 pm   Subject: Oven question
get a multi meter and read the resistance of your coils . You can calculate the amp draw :

amps=volts/resistance


a 15 amp breaker can run:
R=120/15= 8 ohms maximum

a 16 ohm coil will run a ...
  Topic: why so many vac holes
cod

Replies: 7
Views: 2087

PostForum: Vacuum Forming & General Stuff   Posted: Wed Nov 26, 2008 12:14 pm   Subject: Re: why so many vac holes
there are more than a few folks who just use one hole in the middle. Either way will work. There is something to the idea that multiple holes works well when you are forming multiple parts on one pla ...
  Topic: 220V stainless oven
cod

Replies: 19
Views: 4169

PostForum: Vacuum Forming & General Stuff   Posted: Tue Nov 25, 2008 3:02 pm   Subject: 220V stainless oven
If you are using a GFCI outlet- doesnt that have a breaker ? Mine does. I basically have 2 circuits with hardwired plugs that go into a 4 hole gfci box which is mounted on the machine. I can pull the ...
  Topic: oven made from what material?
cod

Replies: 10
Views: 3462

PostForum: Vacuum Forming & General Stuff   Posted: Sat Oct 25, 2008 9:47 am   Subject: oven made from what material?
Use the HardiBaker Last thing you need is a fire or even a circuit to trip.


Hardibacker works, but I don't think its the best way to go.
If I did it over I probably would just go all-metal, mayb ...
  Topic: oven made from what material?
cod

Replies: 10
Views: 3462

PostForum: Vacuum Forming & General Stuff   Posted: Fri Oct 24, 2008 9:39 pm   Subject: oven made from what material?
you can do an all metal oven. But I would advise not touching it, and making sure it's grounded properly. hardibacker provides grounding and heat insulation, but it can be fragile over time.
  Topic: Over/under table and oven design
cod

Replies: 33
Views: 13432

PostForum: Vacuum Forming & General Stuff   Posted: Thu Oct 16, 2008 11:04 am   Subject: Over/under table and oven design


1. What controller would be best to handle and control the heating on two seperate heating elements?



you may find you dont need a controller, so for now I would just keep the 2 circuits ...
  Topic: Fully operational 2'x4' production machine built in 7 days
cod

Replies: 148
Views: 43176

PostForum: Vacuum Forming & General Stuff   Posted: Mon Sep 29, 2008 2:27 pm   Subject: Fully operational 2'x4' production machine built in 7 days
neat. I had window film that works like this.

waht happens when it gets wet ? does it 'cure' eventually so that it wont loosen again ?
  Topic: WATTAGE of your nichrome oven?
cod

Replies: 5
Views: 1823

PostForum: Vacuum Forming & General Stuff   Posted: Fri Sep 26, 2008 12:33 pm   Subject: WATTAGE of your nichrome oven?
i think mine is something like:

2 discrete circuits , each 1200 watts, each going to a separate 15 amp breaker for a 24x24 machine
  Topic: Voltage question.
cod

Replies: 12
Views: 2933

PostForum: Vacuum Forming & General Stuff   Posted: Mon Sep 22, 2008 6:38 am   Subject: Voltage question.
A shocking story for your enjoyment...
So... was it really a poorly secured cover, or poor eyesight that caused that caused the accident? I guess we'll never know.

CF


yeeesh.

my horror ...
  Topic: Little red VAC-U-FORM machine
cod

Replies: 4
Views: 7363

PostForum: Vacuum Forming & General Stuff   Posted: Mon Sep 22, 2008 6:25 am   Subject: Little red VAC-U-FORM machine
Whoah! those cone/coil lights are something else! never seen that before!

another curious thing to me is I used to live in Wilmette, IL when I was in High school. Weird to try and imagine any sort ...
  Topic: big time webbing, help
cod

Replies: 50
Views: 10026

PostForum: Vacuum Forming & General Stuff   Posted: Mon Sep 22, 2008 6:19 am   Subject: big time webbing, help
You might want to consider a 'plug-assist' tool as well. this would be another tool, covered with felt, that would be used to forcibly push the plastic down into(or on) your mold. I've only read abou ...
 
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