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Topic: Large format?

How difficult would it be to make a 3d printer than can print in dimensions of say 48"x48". What are some of software changes i would need to consider. I need to prototype long and wide pieces, at this time not so tall but I assume height would just be an extension of the other dimensions.

Would my only limitations be an adjustment to the control software and building a larger scale machine? I am new to this so please be kind.

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Re: Large format?

Software is not hard.

Issues:

Time. You're probably going to be extruding a LOT of plastic on a part like that. It could take days.
Axis flexibility. You have to make very long axes, which means they can't be on unsupported 8mm rods without considerable bending. You'd have to use a different method of linear travel.

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Re: Large format?

If you're into it from the hobby standpoint then it may be worth it to you.  But you can bet you're going to be spending in the thousands to put this together and get it working.  Can you just buy prototypes for these or will there be that many where it makes the cost worth it?

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Re: Large format?

Not to mention ABS warping issues that will occur unless you plan on using PLA.

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Re: Large format?

In all reality making it would probably be the easiest aspect.  Refining all the issues and fixing any bugs might be something that never really stops with the current technology.  Having a build area so big I think your only option would be to try and utilize a heated build area,  and being say 50x50x6 (just a guess), that's a lot of area to keep really warm for what would be an extremely long time.

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Re: Large format?

I would probably enclose the area and just keep the area warm, not try to heat the bed I think that would be a losing battle.

7 (edited by ysb 2013-01-03 22:00:09)

Re: Large format?

gigonormous ultimaker at maker faire 2012..

2.5 feet* 2.5 feet * 3.5 feet


http://hackaday.com/2012/09/30/ginormou … ltimakers/

didn't work very well (shake and flez problem )


but you can try lebigrep... 1 cubic meter

http://reprap.org/wiki/LeBigRep