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Post by Mastercaster on Sept 1, 2013 20:39:52 GMT -8
Hi Mike,
I will not know until I make one. I did not even attempt to make a clear one from the mold above. If this fails you should be able to use these molds to try to vacuum form them. You would lay the master on the male side of the mold and place a warm sheet of clear over it to be vacuumed down over it. You purchased a specialized piece of lab equipment so you will know how.
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Post by Maindrian Pace on Sept 2, 2013 11:48:20 GMT -8
Greg,
I've got a line on one if the seller gets back to me, and it will be available on the 7th. I need to get the plastic for it, or make it. I should be ready to go a few days after then if all goes to plan. Then I'll need to lay the four windows in a pyramid form, do a test shot to see if the windows will trim to the right shape, mod the form if necessary, and run the production. The neat thing is that once the form is finalized, it will only take a few minutes each for the copies.
-Mike
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Post by Mastercaster on Sept 2, 2013 16:21:28 GMT -8
Cool! Once you get it perfected, I would like to see it work.
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Post by Maindrian Pace on Sept 9, 2013 10:00:21 GMT -8
Look what I just got!  Professional dental vacuform machine. Now I need to figure out what plastic to get and use, and we're in business. Greg, I'd like to pick up the glass masters in the next few days and get the ball rolling. Perhaps we can mock up the pyramid form when I'm there? I'm thinking you may have a good idea of what to use. -Mike |
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Post by Mastercaster on Sept 12, 2013 12:31:24 GMT -8
I have been in the hospital the last few days and am home now. will send a PM.
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Post by Maindrian Pace on Sept 12, 2013 16:42:55 GMT -8
Gee Greg, I hope everything is going OK.
-Mike
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Post by Mastercaster on Sept 12, 2013 18:02:42 GMT -8
Hi Mike,
I sent a Pm. I think I will survive.
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Post by Mastercaster on Sept 15, 2013 10:46:58 GMT -8
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Post by Mastercaster on Sept 15, 2013 22:03:16 GMT -8
 Here is one side of the Fox hood done. |
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Post by Mastercaster on Sept 16, 2013 18:39:52 GMT -8
 Here are the first couple of hoods. |
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Post by Maindrian Pace on Sept 17, 2013 19:14:48 GMT -8
Looks great Greg! With the resin hood, builders will be able to paint the whole body with the hot automotive paint of their choice, without having to worry about crazing the plastic. This is one way that resin is really cool stuff.
-Mike
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Post by FMW on Sept 17, 2013 19:31:38 GMT -8
I see you made mention of 3D scanning and printing. I've kind of been watching that market.
Low-end scanners start at $579.
Low-end printer start at $499.
The printer has a resolution of .1mm, and the ABS filament they use isn't clear, so we're not talking about printing lenses here. Copying parts however. . .
And like everything else in the electronics industry, prices come down and capability goes up as time goes on.
FMW
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Post by Mastercaster on Sept 17, 2013 20:22:46 GMT -8
The 3D printing is pretty amazing. I have seen the video with Jay Leno where they scan a crescent wrench and the printed copy had a operational thumb wheel and opening jaws. How is it even possible?
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Post by FMW on Sept 17, 2013 21:26:29 GMT -8
I would have had to see it to figure that one out. I would think a crescent wrench would have hidden gaps that the scanner couldn't see. However, if it had line of sight on all the gaps and was really high resolution, it could pick up all the pieces as individual parts. If they were using a 3D dual-lazer liquid catalyzing printer, they could put the parts together in 3D and get a working model. I kind of suspect that someone tweaked the scan to break the hidden gaps (no big deal - they're all straight lines) to get a working print with no rework.
15 or 20 years ago they demo'ed a lazer catalyzer printer at work. The thing turned out a full-size exhaust manifold with correct outside and inside dimensions. They also built a ship in a wicker-work bottle (about 2" long) and a bell with a working clapper in place (also about 2"). The company wound up buying one to prototype mechanical parts. Once they paint them you can't tell them from the finished product.
FMW
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Post by Maindrian Pace on Sept 20, 2013 20:37:21 GMT -8
I've got the glass all dialed in, and a BIG sheet of .015" PETG plastic on order, should be here late next week. Then it all comes together.  -MJS |
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