Anyone in the GTA have a 3D printer? - Page 2 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 09-28-2016, 06:58 PM   #11
alex sorensen
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Re: Anyone in the GTA have a 3D printer?


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I had just signed up for our local library's program.one thing tho,it is only PLA,not metal,and not so great resolution.The additive people sound like the direction to go.I wonder whether to do the hub in steel,or aluminum?Think of a 2" hex nut,with 3 prop bores in it.
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Old 09-29-2016, 08:32 AM   #12
David_Durand
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Re: Anyone in the GTA have a 3D printer?

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Originally Posted by alex sorensen View Post
I had just signed up for our local library's program.one thing tho,it is only PLA,not metal,and not so great resolution.The additive people sound like the direction to go.I wonder whether to do the hub in steel,or aluminum?Think of a 2" hex nut,with 3 prop bores in it.
Hi Alex,

Most Makerspaces in public libraries have Fused Filament Fabrication (FFF) 3D printers and use PLA because it produces a "more pleasant" smell than ABS. Not sure what type of machine your public library had but most of the pro-sumer units available use a 0.4mm extrusion nozzle and are capable of layer resolution down to 0.1mm (100 microns). With the right temperature, feeds and speeds settings, you can get very good results with with these machines but they need to be set-up properly (they are manufacturing devices, not printers). I am guessing that you did not have anyone there to help you with slicing software configuration settings and/or printer set up.

That being said, PLA or even ABS may not be the best material selection for a functional propeller hub. Definitely contact the folks at Additive Metal Manufacturing for a quote (http://amm.leverage.it/index.php/get-a-quote/).

As well, for a lower cost alternative, reach out to Ian Durbach at Objex Unlimited (ian@objexunlimited.com). They have a new Mark Forged printer that can infuse strands of carbon fibre, kevlar or fibreglass into a nylon substrate. This technology can produce real composite parts that are up to 5X stronger and 20X stiffer than 3D printed parts made from ABS plastic.

Good luck.
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