www.TK560.com

cod · Posted: Mon Sep 22, 2008 6:19 am Post subject:

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 about this being used in industrial thermoforming, but it does seem like it would help with such a deep draw. It basically would be you doing some of the work in stretching the plastic by hand, with a piece of felt-covered wood or something that you could ring around the outside of a positive mold (or push into the cavity of a negative mold.)

It may be though that a shop vac system will never be strong enough to make this technique viable.

just more thoughts to muddy your brain Wink

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inventer · Novice Joined: 22 Apr 2008 Posts: 55

Thanks gang, you guys have alot of great ideas and one or all should help. Stopped at Lowes yesterday and bought some wood. This is a fun hobby, (project) and I have fun doing it, but boy it's getting costly, whats the ole saying, you gotta pay to play Very Happy

I'll try working on this after work this week, if not, I will be working on it this weekend between working on the motor of my show van, thanks again gang, Tony

inventer · Novice Joined: 22 Apr 2008 Posts: 55

Man, YOU GUYS ROCK, I'm so stinkin happy Very Happy

, best pulls I've ever made. Did 2 pulls, one with the .010 PETG and one with the .015 PETG, I'm blown away. The .010 pull is pretty thin, but the .015 pull came out great. One of you's said about the PETG plastic stretches like crazy, I've never had and thing stretch like this before, man, you guys ROCK. Very Happy

Bet you can't tell I'm happy ? Very Happy

No webbing at all, none, nada, none at all, WOW, I'm so happy. Heres some pics I took,
http://smg.photobucket.com/albums/v81/vanner40/inverted%20pulls/
Now I need to do some modifications to the mold, after that I'll be pulling away, guess what I'm doing sunday ??? Very Happy

Whooooo, hooooo, you guys are awsome, thank you so very much, I do get frustated at times, but I've never been a quitter, yet. I'll keep you posted after tomorrows pulls. Tony

CrazyFool · Expert Joined: 07 May 2008 Posts: 203

Right on inventor! Great photos. Looks like you have a winner now!

ahillworks · Master Joined: 18 Nov 2007 Posts: 308 Location: Orlando FL

I told you it streches lol Cool glad you got it to work. Hey I want to see a video of this working this looks kinda cool. Been thinging about doing this and just may start now with some things I want to make.

ahillworks · Master Joined: 18 Nov 2007 Posts: 308 Location: Orlando FL

Ok so like did you place a hole at the bottum of this?? I really like to know how it worked. lol. I see you also go the lip and all the ripples. Man I really need to know how this worked. lmao.

inventer · Novice Joined: 22 Apr 2008 Posts: 55

Thanks guys, I did some more pulls on sunday, but did'nt want to waste anymore plastic. I've been working on the mold, adding my trademark. I'll do a video this weekend when I ready to make my show samples to put out in the stores. I knew PETG stretched, but not as good as it does for the inverted pulls.

ahillworks · Master Joined: 18 Nov 2007 Posts: 308 Location: Orlando FL

Cool can not wait to see this. Yeah kinda cool when it does that. First time I got it to work it streched over my mold I was like WAAA wait a minute lol. Its cool though.

inventer · Novice Joined: 22 Apr 2008 Posts: 55

Hi gang, you'll have to excuse me on the video, I woke up sick yesterday, guess I over did it working and ran myself down, just painted a 7000 sq ft store with 5 colors in 8 days. I drug myself out to the garage to make you's this video and my sweetie helped. The videos loaded backwards, video 2,1 instead of video 1,2. I'll never be a movie producer Laughing

Well let me know what you think, heading back to the couch, I gotta try and shake this before work monday. Tony

http://smg.photobucket.com/albums/v81/vanner40/inverted%20pull%20tk560%20fourm/

CrazyFool · Expert Joined: 07 May 2008 Posts: 203

OUTSTANDING!!! Very Happy

You did it buddy! Whooo hoooo!!!

jegner · Posted: Sat Oct 04, 2008 6:58 pm Post subject:

All right! Man, your in business now! I hope you can sell a ton of these!

Jim

ahillworks · Master Joined: 18 Nov 2007 Posts: 308 Location: Orlando FL

Wow man that is cool. I have a question though. Is the mold raised and has two holes in the bottom? I am trying to figure out how you get the lips to pull on the edges.. I want to make some molds of some project but need to be sure I do it right. If it is raised then the whole box is being vacuumed out correct?

I know so many questions sorry. But man I watched that video like 20 times lol that was the coolest thing to watch this get pulled in reverse lol.

inventer · Novice Joined: 22 Apr 2008 Posts: 55

Ahill, the mold is just sitting on the vac table top, theirs holes in the vac table, drilled several holes in the mold bottom just like they suggested on here, now I did screw the mold to the table so it don't move around. The mold is level with the wood box around it, theirs a 1/8" gap between the mold and wood top, thats how the lip gets so perfect. After all the other ways I've been trying, this one just blew me away. What I'd like to do now is figure out a way to make my oven with the nichrome wire and do away with the 2-220 lines. If you want to see more pic's of the box, table, mold or something, let me know, I'll do my best to take some. Thanks again guys. I see theirs alot of new guys posting on here, I hope they learn alot like I did from you guys. Tony

spektr · Master Joined: 07 Jan 2008 Posts: 425

I see weatherstripping listed in the drawing. If you use silicone sealant, real silicone sealant, not latex crap, it wont ever melt, AND you dont have to keep messing with it every part. On molds where you use wood and need to seal things, use silicone seal and squeegee it around. It lasts for hundreds of pulls, is cheap, smearable and really effective...

Scott.