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Old 02-07-2018, 02:27 PM   #1
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3D Printed Trailer

Tomorrow a Canadian company will start printing a full size 3D travel trailer. Hope it works out as good as the fibreglass Boler did...produce not that many miles away. Maybe in 50 years we will be going to a celebration of the first printed trailer.

Two news links with a few different tid bits.

https://globalnews.ca/news/4007443/w...per-saskatoon/


On the road: Saskatoon entrepreneurs set to create world's 1st 3D-printed camper - Saskatoon - CBC News
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Old 02-07-2018, 02:28 PM   #2
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And I hope they put the door on the correct side...
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Old 02-07-2018, 06:00 PM   #3
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Originally Posted by Eggscape View Post
Tomorrow a Canadian company will start printing a full size 3D travel trailer. Hope it works out as good as the fibreglass Boler did...produce not that many miles away. Maybe in 50 years we will be going to a celebration of the first printed trailer.

Two news links with a few different tid bits.

https://globalnews.ca/news/4007443/w...per-saskatoon/


On the road: Saskatoon entrepreneurs set to create world's 1st 3D-printed camper - Saskatoon - CBC News
Based on their stated weight target it doesn't sound like a very thick shell. Might not be too sturdy....
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Old 02-07-2018, 06:15 PM   #4
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Based on their stated weight target it doesn't sound like a very thick shell. Might not be too sturdy....
Take the cabinets out of ours and?
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Old 02-07-2018, 06:37 PM   #5
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Might be a good start on a plug for a fiberglass trailer?

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Old 02-07-2018, 08:49 PM   #6
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I noticed this idiocy in the similar FiberglassRV discussion. It is just a stupid publicity stunt.

The PETG material (a variant of PET) to be used is unsuitable for a trailer body. If it isn't unreasonably thick it would need fibre reinforcement (with some resin that would need to be compatible with the PETG) on the inside for strength and rigidity; regardless of thickness it would probably need a coating (such as paint) on the outside to protect it from ultraviolet light... and to make it opaque.

Despite the ludicrous claims, impractical production, and structural inadequacy, the most offensive aspect of this thing is the poor design of the shape. 3D printing could enable the production of nearly any desired shape, to implement an advanced aerodynamic design, careful packaging of interior elements, and structural optimization; such a shape would be very different from what can be readily constructed in a manually-built mould, and would not be constrained by what can be pulled out of a one-part or two-part mould. This thing looks like the designer didn't want to spend more than a few minutes with a basic 3D design software, has never been inside a travel trailer, and probably didn't understand anything about aerodynamics. Such a wasted opportunity.

They say you could fill it with water and it would still be around in a hundred years. Yes, it will still be around like all waste of polymers like this, but the 14 tons of water would probably split the thing immediately. I can't imagine the thickness of the walls of a real 14,000 litre water tank being compatible with the stated weight.

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Based on their stated weight target it doesn't sound like a very thick shell. Might not be too sturdy....
The weight is just a bare shell, not a trailer; the amount of polymer used for the printing is stated as 270 to over 300 kg. This sort of stupidity is common among people pushing propaganda, who neither know nor care about facts. This is even worse than the people who claim that 13-foot Boler trailer weighs 800 pounds, although none are that light with the furnishings and equipment inside.

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Might be a good start on a plug for a fiberglass trailer?
That would make sense, although it is not what they are doing. The printed plug could be reinforced internally and then used to make a mould.
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Old 02-07-2018, 09:40 PM   #7
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Based on their stated weight target it doesn't sound like a very thick shell. Might not be too sturdy....
I would hope that they don’t just make a shell but would also print attached beds, seats and cabinets for wall support.
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Old 02-07-2018, 10:27 PM   #8
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I noticed this idiocy in the similar FiberglassRV discussion. It is just a stupid publicity stunt.
I think characterizing it as “stupid” is a bit harsh. I didn’t read that this was part of a business plan to build functional practical trailers. It appears to simply be a technology demonstration of what’s becoming possible with large scale 3D printing. It does also seem that they’ve pushed the boundaries a little bit by developing new high flow nozzles to do the print.
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Old 02-08-2018, 09:06 AM   #9
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Someday we will see this technology in real products, large scale. It would have incredible advantages. A trailer for example, could utilize "unibody" construction. Properly engineered, it would have incredible strength. Things like toilets, sinks, benches, etc,...could all be incorporated into the monolithic primary structure. It has great promise, it's just in it's infancy today. Projects like this are very exciting.
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Old 02-08-2018, 09:09 AM   #10
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3D Printing

10 years ago I was involved in 3D printing, running a 1 man lab and making prototypes for a consumer products company. The 1/4 million dollar machine could make things 15" X 15" X 15", so no trailers from that. It is an amazing and magical process. Machines have gotten bigger, resins have got better, but the gee whiz factor blinds many people. The resins I used were UV light cured, and sunlight exposure made them discolored and brittle. Sure, paint would help some, but the resins are the limiting issue, besides their cost. I've been out of the game for 9 years, I'm sure there are many advancements, but I'm skeptical. Hype sells, reality sucks.

The Chinese are supposedly going to 3D print a house. Aerospace extensively uses the process with metals for shapes that can not be otherwise fabricated. It's voodoo magic to load a program into the machine at 5PM and come back next morning, hit a button, and your complex shaped item rises like the phoenix out of a tub of resin.
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