Re: Continuous print job
I have already posted my intention to make a conveyor for my mendel when it's printing. Some of the things I've found out along the way is that the bed really must be incredibly stiff and immovable...
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I was thinking of a continuous conveyor belt made of kapton that would move over a heated bed.
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The problem is you need to hold it down all over so that the warping forces don't lift it. I have tried a vacuum, but atmospheric pressure is not enough to hold the corners of ABS objects down. I...
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How about a belt tensioner that would force the belting tight against the bed? It wold loosen when moving the belt. Then then, in the new posistion lever against it.
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It doesn't have to be that complicated..... There are many ways to create the necessary tension without getting overly complex. My method will use some appropriately designed rails and flexible but...
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Unfortunately the necessary tension to keep a belt flat is infinite. See my explanation to Wes in the comments of this post: [hydraraptor.blogspot.com]
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So then it is your opinion that it's not possible? Afterall, infinite tension would be impossible to generate. I am not so sure... not yet anyway. /grin
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Well you can get it almost flat with slightly less than infinite tension, but the tape would snap. That is why I explored vacuum and magnetic beds. They apply the force vertically rather than...
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Ahh, I am not using tape as the tensioned surface. That may make a difference.
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Hello all, If anyone is interested this device [www.dwbowen.com] uses ABS 3.5" plastic discs connected to 4 inch nylon webbing. The conveyor is advanced by a 1 rpm AC gearhead motor. The webbing is...
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dwbowen, I'm very interested. Would you be keen on putting up lots of nice big photos up here: [objects.reprap.org] (Maybe after the March 15 show if you're super busy right now) I'll clean up the...
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Yep, good points about the belt tension. I see that now. Still brainstorming here... How about something like removable heater beds. Would need to make the electrical connections by pressure contacts....
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You don't need to remove the heater. I just use a thin sheet of steel covered in Kapton held down by magnets: [hydraraptor.blogspot.com] It can be lifted off, bent into a slight curve to release the...
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On the belt / tension, all that would be needed to keep a flat surface is to use strips of trapazoidal, non-flexible material to which you adhere the film, a long 'foot' to press down on both sides of...
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I am not following you BeagleFury. How do you hold the middle of something down by tension at the edges? As I stated earlier it needs infinite tension to hold something flat.
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bjb's idea is exactly what had popped into my mind - just like tombstones for CNC machining. I was thinking of a removable heater bed with 4 'legs' that raise it off of the X-Y bed, with the legs also...
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nophead Wrote: ------------------------------------------------------- > I am not following you BeagleFury. How do you hold > the middle of something down by tension at the > edges? As I...
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I see what you mean now. Kapton tape comes with high temp silicone adhesive that sticks to AL.
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If those treads were made of springy steel I wonder if there would be a way to deform them to get the part off. Perhaps squeezing a section of track on the sides or perhaps going around the return...
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