stunthanger.com
General control line discussion => Open Forum => Topic started by: Randy Powell on July 19, 2011, 02:50:23 PM
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I guess you just have to see this:
http://www.youtube.com/watch?v=ZboxMsSz5Aw
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There are some out there that are around $1000 and can print about 50% of themselves. Now I don't know the cost of the program to run it but that is pretty cheap considering the one we have at work is around $25000
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That particular one makes parts out of plastic. I've heard of 3D printers that do sintered metal, but the closest to that that I've seen is a 3D printed thing made out of wax that could have been used for investment casting.
None of them have the precision needed to make a moving part of an engine -- those gears are impressive, but they wouldn't last for long in real use.
They're way cool, but don't sell all your stock in machine tool companies yet.
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Wow. I'm gettin me a 28 oz. Legacy that a .46 will pull. But does it qualify for BOM???? Hmmmm, a whole new can of worms. Fortuantely this is not a reality to print a 59" stunter but the thought of it all is intrigueing. No building. It boggles my mind.
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Sure! Who wants to spend all that time at the board?
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Gee, how about an engine??
Roger
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Check out this You-Tube post. I see a giant Cox product engine that was printed in resin.
http://www.youtube.com/watch?v=uAt2xD1L8dw&feature=related
Since this can be done with apparent relative ease, the engine makers should offer low cost plastic versions of some popular engines. They could be used for setting up a new model. They would also make neat conversation piece and just be fun to have and play with! If a high temperature resin ever becomes available, all plastic or mostly plastic engines might someday be a reality. EWP
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A decade ago.....
http://www.3dsystems.com/newsevents/newsreleases/pr-001204.asp
Thought I had the original article with pictures and such.
lost?
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A bump for this thread....
http://www.sciencedaily.com/releases/2011/07/110728082326.htm
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Think of this...
What if you "printed" a set of ribs, bulkheads or control surfaces from a lightweight material that was compatable with CA or epoxy? The rest would be balsa sticks and sheeting. How neat would that be!
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The 3-D printer is similar (or identical) to Stero-Lithography technology, commonly called SLA. It is used frequently to make investment castings and repelaces the wax of the "Lost wax process". It has a myriad of other great uses too. We use it frequently to produce fit check mock ups prior to production.
Here is a link to a video of a working model plane using this technology. The technology permits ultra complex structures, perfectly optimized strength, weight and stiffness. AND............NO FIXTURING to get perfect alignment.
http://blogs.airspacemag.com/daily-planet/2011/07/print-your-own-airplane/?ref=nf
Jim Hoffman
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In 1993 While attending school at Garrett Engines in Phoenix, (Allied Signal/Honeywell) my class was given a tour of their R&D facility. Somehow I got separated ;) from the rest of the class and walked into a room that had, what looked like a pop corn machine; the type at a movie theater. It had a wire grid in a pan of brown liquid that was moving back and forth in the liquid. Rising up out of the liquid was what looked like a brown, translucent engine componet. Upon the discovery of my presence by a "large male figure," ~^ I was escorted out into the hallway and given a lecture about secure areas and some other rules; with an intimidating voice. After he was through...I...cautiously asked him "what was that?" He said "if I told you I would have to have you killed." As I turned to leave; he smiled and said "It was brand new, saves us tons of money and time doing research." It seems from viewing the clip; that "popcorn machine" has come a long way since 1993.
Norm