Paul, <3 that there are people who could hang on to cool stuff in their past. Reminds me of tell a Group Theory professor at FAU about my start in computing in middle school; I'd been reading about the MIT's Altair 8800 (or some title) in Popular Electronic. At that point in my story my math professor tells me he still has his on a shelf in his garage. I went to his Christmas party that year and got my 1st look at a DIY Built MIT's Alair from 1976! [image: image.png]
Anyway, I'm very happy you still have your Vac-u-form; One of the best toys we had had as a kid! :-D On Wed, Dec 21, 2022 at 9:55 AM The MacDougals via TriEmbed < triembed@triembed.org> wrote: > I have a Mattel Vac-u-form machine if you want to try it out. > > > > --->Paul > > > > > > *From:* TriEmbed <triembed-boun...@triembed.org> *On Behalf Of *Scott > Hall via TriEmbed > *Sent:* Tuesday, December 20, 2022 11:13 PM > *To:* Mike Lisanke <mikelisa...@gmail.com> > *Cc:* SplatSpace <durham-makersp...@googlegroups.com>; Triangle Embedded > Computing Interest Group <triembed@triembed.org> > *Subject:* Re: [TriEmbed] Anyone know a good way to get access to a > vacuum forming machine? > > > > Charles (& Mike), > > Jeff Crews at SplatSpace has built a vacuum-forming machine from scratch. > I cross-posted this message so that he might see it and respond to you. > > > > On Tue, Dec 20, 2022, 9:56 PM Mike Lisanke via TriEmbed < > triembed@triembed.org <triembed@triembedorg>> wrote: > > Charles, > > > > Hope everything is going great for you and yours. > > I recall as a child using this.. > > https://www.ebay.com/b/Mattel-Vacuform/727/bn_7114054425 > > much later in life but still years ago, I've watched DIY Youtube videos on > vacuum forming. > > I was interested in the tech and was surprised that a great number of > vacuum draw holes was Not needed. > > But still it all depends on the size and requirements of the product. > > Your product idea seems to fit in the vacuform size and pin spacing. > > as I recall (after very long time) it had a great number of tiny pinholes > in its forming platen. > > I held thin plastic sheets in a metal frame which is held against a heater > (opposite of the forming platen) > > which is then swung into place for vacuum pump down. > > Anyway, I hope the story helps. > > I haven't worked on implementing my own (yet) because there's so much > manufacturing tech to look at/choose! > > > > On Tue, Dec 20, 2022 at 9:31 PM Charles West via TriEmbed < > triembed@triembed.org> wrote: > > Hello! > > > > I'm kinda all over the place project wise (apologies Paul), but one of the > things I am working on right now is a Phase 1 STTR grant from NASA for a > new solar sail material. > > > > As part of that, I'm trying to figure out the barriers to implementing a > new solar sail design called a "space tow". It's composed of a bunch of > little solar sails all strung together like sled dogs to pull on something. > > > > As part of that, I am trying to see whether it's possible to form > corrugations in a thin plastic sheet (1-5 microns thick) so that it has > some rigidity and won't need reinforcement to stay planar. > > > > As part of that, I would like to try vacuum forming one of the sheets and > see if that can produce the desired change in shape. > > > > ... as part of that, I need to find, make or buy a vacuum forming machine > and give it a go. > > > > TL;DR: > > Does anyone know where I could find a vacuum forming machine that I could > use or about their experience homebrewing one? > > > > Thanks, > > Charlie > > > Triangle, NC Embedded Interest Group mailing list > > > > -- > > Best regards, Mike > > > Triangle, NC Embedded Interest Group mailing list > > _______________________________________________ > Triangle, NC Embedded Interest Group mailing list > > To post message: TriEmbed@triembed.org > List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org > TriEmbed web site: https://TriEmbed.org > To unsubscribe, click link and send a blank message: mailto: > unsubscribe-triem...@bitser.net?subject=unsubscribe > Searchable email archive available at > https://www.mail-archive.com/triembed@triembed.org/ > > -- Best regards, Mike
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