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bed-spring_4off (improved)

by MarcusWolschon, published

bed-spring_4off (improved) by MarcusWolschon Feb 2, 2010

Description

bed-spring_4off from the RepRap Mendel has a very short area behind the teardrop that causes the part to fail if the filament does not stick perfectly.
I made that area somewhat longer to improve print-reliability.


The provided photo of this failure was done on a properly calibrated RepMan with 0.25mm layer-heigh and usualy extremely good prints. So
I guess this issue is much worse on the majority of RepRaps and Makerbots.

Recent Comments

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Not very useful. Break too easily.

ABS.

See the original Design for more details.

I have never worked with PLA. So I cannot answer your second question.

Hi Marcus,

is the design for ABS springs? I imagine it won't work with PLA?

Thanks

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License

GNU - GPL
bed-spring_4off (improved) by MarcusWolschon is licensed under the GNU - GPL license.

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Comments

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Anonymous on Apr 10, 2011 said:

Not very useful. Break too easily.

syncra on Dec 27, 2010 said:

Hi Marcus,

is the design for ABS springs? I imagine it won't work with PLA?

Thanks

MarcusWolschon on Dec 28, 2010 said:

ABS.

See the original Design for more details.

I have never worked with PLA. So I cannot answer your second question.

nophead on Feb 2, 2010 said:

I think that problem is caused by ooze. As the head crosses the gap made by the hole it oozes so some filament is missing when it makes the short section. That causes the layers not to stick properly because there is missing plastic.

Are you using the extruder reverse option?

MarcusWolschon on Feb 2, 2010 said:

I cannot flash the 1.0.8 firmware aka "no strings attached" due to a hardware issue
and
&
lt;0RPM is ignored in my firmware.

nophead on Feb 2, 2010 said:

BTW, I built the original version in ABS on HydraRaptor and did not get the problem.

laszlo on Feb 2, 2010 said:

The usefulness of these springs are really questionable, if you are using a heated bed with your Mendel...

MarcusWolschon on Feb 2, 2010 said:

Most people have no heated bed.

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