Spoonplugger

Vacuum Forming

14 posts in this topic

I looked up Vacuum Forming on YouTube to get info about it when I was looking into it. There are a couple of good ones there.

Would like to see some pics of the vacuum former that is in the TU video. Liked how that one was designed.

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Would like to see some pics of the vacuum former that is in the TU video. Liked how that one was designed.

post-11291-021032000 1287291054_thumb.jp

Vacuformer minus vacuum (Shop vac works fine) Theres a 2" dia. hole in the back to plugin the hose.

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Platen to hold the PETG film

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Platen and heating element

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A finished pull

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Stencils ready for cutout

Lemme know if you have questions, I tried re-editing the video, but it was chopped up beyond edit due to it being broadcast live.

Maybe I'll find time to reshoot a little segment explaining its use when I can.

Thanks for the interest.

post-11291-058389000 1287291052_thumb.jp

post-11291-021032000 1287291054_thumb.jp

post-11291-073387800 1287291055_thumb.jp

post-11291-004933100 1287291057_thumb.jp

post-11291-086060600 1287291058_thumb.jp

post-11291-058389000 1287291052_thumb.jp

post-11291-021032000 1287291054_thumb.jp

post-11291-073387800 1287291055_thumb.jp

post-11291-004933100 1287291057_thumb.jp

post-11291-086060600 1287291058_thumb.jp

post-11291-058389000 1287291052_thumb.jp

post-11291-021032000 1287291054_thumb.jp

post-11291-073387800 1287291055_thumb.jp

post-11291-004933100 1287291057_thumb.jp

post-11291-086060600 1287291058_thumb.jp

post-11291-058389000 1287291052_thumb.jp

post-11291-021032000 1287291054_thumb.jp

post-11291-073387800 1287291055_thumb.jp

post-11291-004933100 1287291057_thumb.jp

post-11291-086060600 1287291058_thumb.jp

post-11291-058389000 1287291052_thumb.jp

post-11291-021032000 1287291054_thumb.jp

post-11291-073387800 1287291055_thumb.jp

post-11291-004933100 1287291057_thumb.jp

post-11291-086060600 1287291058_thumb.jp

post-11291-058389000 1287291052_thumb.jp

post-11291-021032000 1287291054_thumb.jp

post-11291-073387800 1287291055_thumb.jp

post-11291-004933100 1287291057_thumb.jp

post-11291-086060600 1287291058_thumb.jp

post-11291-058389000 1287291052_thumb.jp

post-11291-021032000 1287291054_thumb.jp

post-11291-073387800 1287291055_thumb.jp

post-11291-004933100 1287291057_thumb.jp

post-11291-086060600 1287291058_thumb.jp

post-11291-058389000 1287291052_thumb.jp

post-11291-021032000 1287291054_thumb.jp

post-11291-073387800 1287291055_thumb.jp

post-11291-004933100 1287291057_thumb.jp

post-11291-086060600 1287291058_thumb.jp

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redg8r, Thanks for the pics.

What did you use to connect the platen to the metal poles allowing you to move the platen up and down?

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What did you use to connect the platen to the metal poles allowing you to move the platen up and down?

Bulldog clamps, they're household spring loaded clamps used to hold mops & brooms up off the floor.

All parts are hardware store items, minus the heating element.

Some MDF, Pegboard, aluminum angle, metal conduit, etc;

What thickness PETG did you use?

A correction, I posted PETG, I think its PET.

Good question, I don't know the mil, but I'll throw a caliper on it for you, gimme a sec.

I've formed polystyrene up to .060 and 3/32. It should do 1/8 inch too (I know, your lovin the imperial measurements) ;)

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(I know, your lovin the imperial measurements) ;)

I can handle it. Thanks for the info.

I will have to get back to my vacuum former soon, it has been a while.

Dave

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I did a search on the forum with no hits...but what else is involved with the vacuum forming process? What is used to glue the halves together? How are the hook holders attached...

also...what is more cost effective...vacuum forming a crankbait or pouring complete plastic?

thanks

Edited by andydoc

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I did a search on the forum with no hits...but what else is involved with the vacuum forming process? What is used to glue the halves together? How are the hook holders attached...

also...what is more cost effective...vacuum forming a crankbait or pouring complete plastic?

thanks

Vacuum forming is used mainly for creating shaped airbrush templates. It can also be used for making your own blister packaging and domed eyes. The process could be used for making bodies, but I don't know of anyone doing this.

You have outlined the problems: accurately trimming the body halves, fixing hook locations, restricting ballast movement and gluing the halves. all these problems do have solutions:

Trimming - an adjustable jig to hold the body and offer up to belt sander or disc sander. Bodies would still require manual scraping to remove melt swarf.

Hooks and ballast - probably the tidiest solution would be a molded resin frame. You would still have to create the wire harness.

Gluing - The body halves would be placed in a jig. The resin frame inserted with glue. Ballast weights (ball bearings) inserted. The halves fixed using the type of glue that melts/welds the two halves together. The resulting seam would have to be cleaned/sanded.

It is possible, but would require some clever jig design. But just the process of molding the internal frame, you could have molded the whole body, with wire hanger and ballast complete. Also to produce the bodies accurately and consistently, you would probably have to use a higher vacuum than a shopvac.

Dave

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I've formed polystyrene up to .060 and 3/32. It should do 1/8 inch too (I know, your lovin the imperial measurements)

Where do you guys get your polystyrene from? I found some online at home depot (don't know about the stores yet). Home Depot

I also found a local source but don't know the price. What's the price I should be paying for a sheet?

Spoonplugger

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Where do you guys get your polystyrene from? I found some online at home depot (don't know about the stores yet). Home Depot

I also found a local source but don't know the price. What's the price I should be paying for a sheet?

Spoonplugger

I paid $18.50 (not including shipping) for a 4' x 8' sheet of .030" PETG. (high impact acrylic) I ordered it online from Regal Plastics in Dallas, Tx. Depending on where you are there are no doubt plastics suppliers in your area. Regal Plastics just happened to be the closest supplier to me that I found.

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Lemme know if you have questions, I tried re-editing the video, but it was chopped up beyond edit due to it being broadcast live.

Maybe I'll find time to reshoot a little segment explaining its use when I can.

Thanks for the interest.

redg8r, would it be possible to get the dimensions of the vacuum box, the base it is sitting in and the platen?

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redg8r, would it be possible to get the dimensions of the vacuum box, the base it is sitting in and the platen?

Sure, but the dimensions are relative to the heating element I found.

The base is @ 16' square, the box is @ 12" square, 4" deep with a 2" hole for the vacuum hose.

The platen is @ 13' square to allow 1/2" overlap onto the box.

Hope it helps. :yay:

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