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durability & strength of parts printed

Posted by janam4u 
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janam4u
durability & strength of parts printed
February 25, 2012 11:04AM
I was thinking of printing replacement parts for gears that broke in a commercial document shredder using reprap
the gears that broke appear to be plastic/nylon; large and white

Can anyone demonstrate the durability & strength of the parts that they have made
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Pointedstick
Re: durability & strength of parts printed
February 25, 2012 11:39AM
A gear printed at 100% infill would be incredibly solid and strong; definitely enough for your use if the original gear was also plastic.
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Dale Dunn
Re: durability & strength of parts printed
February 25, 2012 02:37PM
Be aware that ABS or PLA printed gears won't have the wear resistance of Nylon or Delrin gears, especially if they were cast with something like a glass fill. Printed gears can be strong enough, but they will wear out much faster. Especially if you don't reproduce the tooth forms accurately.
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Andrew Diehl
Re: durability & strength of parts printed
February 25, 2012 04:40PM
If it had small teeth the infill will also likely not fill them out so it will not be very strong. Very dependent on the printer/part though.

www.Fablicator.com
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janam4u
Re: durability & strength of parts printed
March 07, 2012 01:07PM
4100X_4160X_PARTS_SHREDDER.pdf
number 8 &12 need to be replaced
they are most likely Nylon or Delrin gears

but can i print with delrin spools
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Attachments:
open | download - gears.jpg (100.5 KB)
Andrew Diehl
Re: durability & strength of parts printed
March 07, 2012 10:35PM
The only materials we are comfortable printing with right now are ABS and PLA. I'm not entirely sure of the scale of the drawing, but it would probably work for a while. Did the original gears wear out or did some object (like a paperclip) go through the shredder and strip the gears?

www.Fablicator.com
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aplavins
Re: durability & strength of parts printed
March 07, 2012 10:37PM
Have you ever stepped on a LEGO?
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janam4u
Re: durability & strength of parts printed
March 07, 2012 11:41PM
ha ha LEGO is ABS

i have no idea what caused the gears to break
but they have lost some teeth
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Andrew Diehl
Re: durability & strength of parts printed
March 08, 2012 09:32AM
Probably abuse then, which means ABS or PLA gears will work about as well as the originals until somebody does something mean to it.

www.Fablicator.com
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janam4u
Re: durability & strength of parts printed
March 08, 2012 10:56AM
OK finally quality = strength
so how do i get the most for my money
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