Custom Vacuum Former

Tips or questions about painting should be discussed here.

Moderator: Moderators

User avatar
messiah1
Savage Extraordinaire
Savage Extraordinaire
Posts: 754
Joined: Sun Oct 30, 2011 11:00 pm
Location: Upstate NY

Re: Custom Vacuum Former

Post by messiah1 » Sun Feb 12, 2012 6:59 pm

This is freaking wicked!  I've seen a couple garage formers and this is pretty much the best out of all of them.  Once you get the design perfected, will you post up a process of what you used and instructions on how to do it or are you going to hold that close?

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Sun Feb 12, 2012 7:09 pm

I'll share info about what I know  :wink:

Still waiting on one more heater so I'll be up to 3000kw. Need good heat to get the plastic to forum right. Hope to have the heater in a couple of weeks.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Fri Apr 27, 2012 9:13 pm

Small update.

Got another heater to boost the heat so I get an even spread all over the plastic. Had to make the frame larger to form more even around the buggy body due to the current frame being too close to the buck and not allowing the plastic enough stretch.

These are a couple of the earlier test pulls I did for my 1/8 VE8 buggy.

The clear plastic is 1.5mm PETG and the black is 2.0mm ABS.

Image
Image

The plaster of paris is a little bit weak around the edges and it has fractured off in places which is a pain. Any little detail you have in the plaster comes through in the plastic (had some shrinkage cracks in the plaster and they even showed up)  8O

Still trying to find a good material that is strong and cost effective to form the bucks.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

Racinss03
Savage Newbie
Savage Newbie
Posts: 19
Joined: Sat Feb 25, 2012 12:00 am

Post by Racinss03 » Fri Apr 27, 2012 11:28 pm

This definitely intrested in this and may just make one myself. Great build topic I say stickie it. Were have you found is the cheapest place to buy the plastic?

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Sat Apr 28, 2012 12:38 am

I just sourced a local plastic supplier in my city for now. I'm sure I can dig around a bit more to see who else can supply here local but I'm just in the testing stages.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
joker777
Savage Extraordinaire
Savage Extraordinaire
Posts: 1117
Joined: Tue Sep 23, 2008 11:00 pm
Location: I'm in England old boy.

Post by joker777 » Sat Apr 28, 2012 2:03 am

I have been wanting to build one of these for quite some time now. I realy should give it a go. Great write up  8)
[url=http://ImageEvent.com/joker777/savagercstuff][img]http://photos.imageevent.com/joker777/stuff/joker%20sig.jpg[/img][/url]
[b][color=blue] To see my RC toys please click on my banner[/color][/b]

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Sat Apr 28, 2012 2:10 am

I'll be sharing a lot more info as I find out more about the pro's and con's.

What I know so far for the plastic sheet size is you have to have at least 100mm clearance from the inside edge of your frame to the buck so the plastic can stretch enough to form around the base of the buck. Height of the buck can also alter the amount of stretch the plastic will have.

I have the new frame built for the 1/8 buggy so I'll try and form that tomorrow. I'll also try and locate a new material that is stronger for the bucks.
Last edited by FluxNZ on Sun Apr 29, 2012 3:23 pm, edited 1 time in total.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

Racinss03
Savage Newbie
Savage Newbie
Posts: 19
Joined: Sat Feb 25, 2012 12:00 am

Post by Racinss03 » Sat Apr 28, 2012 2:04 pm

What are your box dimensions for the 1/8 scale bodies i picked up most of the material to start on my boxs just looking for some lenght and width  to start from.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Sat Apr 28, 2012 3:31 pm

When you say boxes are you referring to the frames that hold the plastic? My new frame size for the 1/8 buggy body is 700mm by 500mm, the boarder of the frame is 70mm wide which is allowing approx 100mm of plastic from inside frame edge to the sides of the buck to allow enough stretch. The plastic sheet size is 600mm by 400mm which allows 20mm of the plastic to be secured within the inside edge of the frame so it can't be pulled out.

If you are going to make a frame for say the Savage truck body or the Ford Raptor body I had pictured on the other page you'll need to go larger again to allow enough space between the inside edge of the frame to the buck (that frame pictured is too small because it was at earlier stage of finding out what works best). The height of the buck can effect the stretch of the plastic so maybe 150mm is needed around 1/8 truck body (Raptor body is nearly twice the height of the buggy).

Multiple frames have to be used if you are forming different sized/type bodies.

Size of the former base depends how big the bodies you are wanting to form. Once you know the size of the body you just make a base to suit the largest frame. I made this one for the 1/5 Baja bodies (yet to be tested) but it also means I can put an over lay rubber sheet to seal the area that the smaller frames don't seal so I can form small items.
Last edited by FluxNZ on Sun Apr 29, 2012 3:24 pm, edited 1 time in total.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

Racinss03
Savage Newbie
Savage Newbie
Posts: 19
Joined: Sat Feb 25, 2012 12:00 am

Post by Racinss03 » Sat Apr 28, 2012 4:19 pm

Ok yeah i will probably make the forming base big to leave room for expansion thinking about 1,219mm square and use something to cover holes and see what size frame works best for the Flux body and Slash Desert Rat body.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Sat Apr 28, 2012 4:38 pm

When you look back at the perivous page I've got an over lay sitting on the base.  It's closed foam material which seals well but doesn't like heat from the frame being heated from the heat source and will deform. Using a rubber type material should fix this.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Sat Apr 28, 2012 5:20 pm

Double post again :?: Doh!
Last edited by FluxNZ on Sat Apr 28, 2012 9:29 pm, edited 1 time in total.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

Racinss03
Savage Newbie
Savage Newbie
Posts: 19
Joined: Sat Feb 25, 2012 12:00 am

Post by Racinss03 » Sat Apr 28, 2012 5:31 pm

Ive done a little bit of searching and think i may try stuff they call dental stone or plaster sounds to be stronger than plaster of paris still looking though.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Sat Apr 28, 2012 5:40 pm

That's the same product I've found as well that should be strong enough. Just have to find a local supplier here in NZ.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Sat Apr 28, 2012 9:38 pm

Had another go with the new frame. Works very well but it looks like I need to lift the buck a little bit higher as the plastic didn't get as tight into the lower corners or the vacuum needs to be a bit stronger. Still working on the timing for how long the plastic needs to sit over the heat source. There have been some little bubbles forming in the plastic (PETG) but what I've read I may just knock back the heat so the plastic isn't being heated as fast.

Image
Image
Image

I also found a great material for the over lay which is the same close foam sheet with an aluminum foil on one side that protects it from the frames heat. You keep the off cut and replace that when you need to do another form. I'll cut out the next hole in the sheet once I know the correct size for the 1/8 Truck body.

Image
Image
Image

Sorry for the blurry bit in the photos that's my phone camera and for some reason something has gotten in behind the lens.
Last edited by FluxNZ on Sat Apr 28, 2012 11:51 pm, edited 1 time in total.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
xtremesavage
Savage Extraordinaire
Savage Extraordinaire
Posts: 7267
Joined: Sun Jun 22, 2008 11:00 pm
Location: BUCKEYE STATE

Post by xtremesavage » Sat Apr 28, 2012 11:46 pm

I would like  to see you go through the process,,maybe a short vid?
[img]http://i338.photobucket.com/albums/n403/xtremesavage/newsig.png[/img]
Share knowlegde,,,Dont brag!!

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Sat Apr 28, 2012 11:56 pm

Yeah I can do that but I would like to get some new molds made for the buggy and truck as well as sorting out the large 1/5 scale one with the new material for the molds. Current one's I'm working off are a bit rough and I don't want to use the plastic I've had cut.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
dddddale
Savage Newbie
Savage Newbie
Posts: 17
Joined: Sun Mar 18, 2012 11:00 pm
Location: England

Post by dddddale » Mon Apr 30, 2012 1:03 pm

This looks really good !, Welldone, definately worth a bash at.
Are you going to try to make any custom shaped shells, I'd love to see a short course or baja shell which fits the savage or xl !

keep up the good work !

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
FluxNZ
Savage Extraordinaire
Savage Extraordinaire
Posts: 983
Joined: Thu Aug 26, 2010 11:00 pm
Location: New Zealand

Post by FluxNZ » Mon Apr 30, 2012 1:15 pm

May give it a go if I can find the right material to make a mold from. I know of a local guy here who is brilliant with crafting Rc bodies so will try and ask him for info. I know he has made a Bugatti Velryon body which is different (1/5 scale I think).
Last edited by FluxNZ on Mon Apr 30, 2012 1:44 pm, edited 2 times in total.
Savage Flux HP - Mild Mods.
Savage Flux 5SC/5T - Custom built.
HotBodies VE8.

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar
dragonbat13
Savage Extraordinaire
Savage Extraordinaire
Posts: 1550
Joined: Sun Apr 10, 2011 11:00 pm
Location: Lake Charles, Louisiana USA

Post by dragonbat13 » Mon Apr 30, 2012 1:15 pm

How thick of a plastic do you think you could use this with?

Reason I ask is because some custom made Rx Batt boxes would be awesome.  If you ever thought up a good design you could make one buck with several of the same box on it.
Mark

Link:
BBcode:
HTML:
Hide post links
Show post links

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest