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02-21-2017, 08:06 AM
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Join Date: Jan 2005
Location: Cascais - Portugal
Posts: 21
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Which material
Weasel
In which material did you print your bracket?
Was it PLA?
That's because I'm trying to find someone to make the 3D print here in Portugal (Europe), and they ask me about the material
Thanks
Carlos
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02-21-2017, 09:51 AM
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Join Date: Jun 2010
Location: Sunman, IN
Posts: 2,189
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PLA
Not sure I would print it in PLA. PLA is more environmentally sensitive and may start to break down faster than you think. ABS is a good way to go or you could even print it in nylon if you want. I have had good luck with all of then on various projects but prefer PLA for things that won't be outside...
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Bob
Aerospace Engineer '88
RV-10
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Wiring...
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02-21-2017, 01:55 PM
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Join Date: Feb 2011
Location: USA
Posts: 3,179
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"Weasel", would you provide some specifics such as material, wall thinness, infiltrate, etc?
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02-21-2017, 02:20 PM
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Join Date: Mar 2007
Location: Sonoma County
Posts: 3,821
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What is the difference if this bracket was made out of aluminum???
1. Weight
2. Cost of material
3. Time to produce
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02-21-2017, 08:08 PM
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Join Date: Dec 2012
Location: Brooksville, MS
Posts: 745
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I printed it with 0.2mm layer height, 40% infill and 4 perimeters with 3 or 4 solid layers top and bottom.
Used ABS material.
Also printed it pretty slow. ~30-50mm/sec
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Weasel
RV-4 715hr Sold 
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RV-10 N7631T 820hr Sold
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02-22-2017, 04:59 AM
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Join Date: Feb 2011
Location: USA
Posts: 3,179
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Quote:
Originally Posted by Weasel
I printed it with 0.2mm layer height, 40% infill and 4 perimeters with 3 or 4 solid layers top and bottom. Used ABS material. Also printed it pretty slow. ~30-50mm/sec
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Thanks. Those look like good numbers to get a strong part of the size and shape of the belt holder.
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02-23-2017, 03:14 AM
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Join Date: Jan 2005
Location: Cascais - Portugal
Posts: 21
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Material
First, i must confess that I am an ignorant about this materials.
The only local 3D printer I found only prints in PLA and in PVC.
I hear that PLA is not good.
Does PVC looks good for this part?
Thanks
Carlos
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02-23-2017, 10:18 AM
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Join Date: Jun 2010
Location: Sunman, IN
Posts: 2,189
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PLA
Here is PLA vs ABS in a nutshell:
PLA (PolyLactic Acid) is a biopolymer, i.e., a biodegradable plastic. It is made from renewable raw materials such as cornstarch or sugarcane. Aside from 3D printing, it is typically used for packaging material, plastic wrap, plastic cups and plastic water bottles. It is considered to be more ecologically friendly than ABS ? after all, it?s made from plants.
ABS (Acrylonitrile-Butadiene Styrene) is an oil-based plastic. It is a tough material that can be used to create robust plastic objects for everyday use, for example in cars, electrical equipment or even in the popular Lego bricks.
PLA is biodegradable, hence the caution to use it indoors away from UV and moisture which will cause it to degrade. ABS, however is a fairly tough material (ever step barefoot on a LEGO?) that does not degrade...
__________________
Bob
Aerospace Engineer '88
RV-10
Structure - 90% Done
Cabin Top - Aaarrghhh...
EFII System 32 - Done
297 HP Barrett Hung
ShowPlanes Cowl with Skybolts Fitted - Beautiful
Wiring...
Dues+ Paid 2019,...Thanks DR+
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02-23-2017, 03:39 PM
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Join Date: Jul 2005
Location: Denver, CO
Posts: 295
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Quote:
Originally Posted by Carlos Trigo
First, i must confess that I am an ignorant about this materials.
The only local 3D printer I found only prints in PLA and in PVC.
I hear that PLA is not good.
Does PVC looks good for this part?
Thanks
Carlos
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Did they say what kind of 3D printer they have?
I didn't think PVC was a typical 3d printing material. Hopefully they didn't mean PVA .. if it is PVC, it'd probably be fine. How much does it cost to have printed?
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// corey crawford
// rv-7a (sold)
// denver, co @ KBJC
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02-24-2017, 02:52 AM
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Join Date: Jan 2005
Location: Cascais - Portugal
Posts: 21
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Well, it is in a local Staples store, and I'm afraid the young man there was not better than me in knowing these materials ...
He asked 84 euros (around US$90, yikes!) for 1 piece, so I gave up.
I think I'll have to wait for someone in this group in the US to offer to produce some of these, and include myself in that group buy.
Or, if anyone of you has access to a 3D printer, and is willing to help me get one, it would be nice.
Thanks
Carlos
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