| How small have you gone? Help! [message #51615] Fri, 20 July 2012 16:50 UTC |
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Hi,
I've been working on a fine chain for production in WSF, and I feel that I'm at the limits of what the laser sintering process can cope with!
The chain link below is only 4.1mm in diameter, so that the charms can thread onto it.
This means that the links end loops are only 1.1mm wide. It is surprisingly strong but I'd like to increase its width by 0.1mm to make it even stronger. Problem is I'll be reducing the space between links from the accepted 0.4mm to 0.3mm.
Will a clearance of 0.3mm between parts be enough to ensure they don't fuse together, has any one pushed the process this far?
Let me know what you think, can I get away with it?
Mark.
The Digital Gardener. Balancing technology and nature. Planting digital flowers. Manufactured by 3D printing. Customized by you.
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| Re: How small have you gone? Help! [message #51648 is a reply to message #51615 ] Sat, 21 July 2012 12:41 UTC |
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These Dragonscale chainmaille earrings printed in WSF have a minimum gap of 0.31mm between the large rings and 0.38mm clearance for the small rings within the large rings. None of the rings were fused, however the rings are slightly smaller, 1mm diameter 'wire' for the large rings and 0.8mm for the small rings. They were caked up with powder though and the rings needed alot of moving about to remove it.
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| Re: How small have you gone? Help! [message #51714 is a reply to message #51648 ] Mon, 23 July 2012 22:24 UTC |
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Thanks Paul for the details, that's a great help.
I've made some tiny adjustments to the chain and I'm gonna give it a go. I'll report back once it's been printed.
Great looking earrings btw, they must have a really nice movement to them, why are they not for sale?
Mark.
The Digital Gardener. Balancing technology and nature. Planting digital flowers. Manufactured by 3D printing. Customized by you.
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| Re: How small have you gone? Help! [message #51732 is a reply to message #51714 ] Tue, 24 July 2012 06:49 UTC |
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Thanks Mark 
The main reason they're not for sale is becasue they arrived caked in powder to the extent that at first it seems that the rings are fused and it takes alot of working (moving) the rings to free them up and get rid of the powder.
Paul
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| Re: How small have you gone? Help! [message #51893 is a reply to message #51892 ] Thu, 26 July 2012 09:48 UTC |
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Oddly enough an ultrasonic cleaner has little effect on trapped powder in a WSF model, though that was powder trapped inside a ring of 36 3(h) x 10(dia) mm slots and not the dragonscale earrings.
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