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Topic: How to solve Thermal retractation

Hello,
First of all, I'm new in the Forum, and new in the 3D printing world.
Apologize my english it's not my mother tongue.

When I print I have a problem of thermal retractation that curve the extremity of my parts.

What is it possible to do to avoid this problem ? does the instalation of a fan solve this kind of pb ?

Thank you for your help.
sincerly
Cédric

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Printer: Solidoodle 2
Slicer: Slic3r
Soft: repetier

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Re: How to solve Thermal retractation

try turning up the temperature on your platform..somewhere around 95 is good.
also keep the case on the printer so the warm air stays inside the machine.

Good luck

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Re: How to solve Thermal retractation

More than likely a sign of bed temp too low. Itd help every one if you stated the temps your running

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Re: How to solve Thermal retractation

Thank you for your answers, I'll try this evening increase the Temp of the bed and i'll get you inform

Printer: Solidoodle 2
Slicer: Slic3r
Soft: repetier

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Re: How to solve Thermal retractation

thank you for you tips.
I tried with 95°C for bed temp and it solved my problem.
Thank you again.

Printer: Solidoodle 2
Slicer: Slic3r
Soft: repetier

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Re: How to solve Thermal retractation

you can also try printing a brim it will give the part more surface area to stick to the bed

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Re: How to solve Thermal retractation

ok
but today with skeinforge it already prints a "zigzag" with 2 or 3mm space between each way and built the part on it.
is it that or you are talking about someting else ?

Printer: Solidoodle 2
Slicer: Slic3r
Soft: repetier

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Re: How to solve Thermal retractation

What you describe is called a "raft."

It's necessary for printing on an unheated bed. It should not be needed for a heated bed.


I would recommend using Slic3r instead of skeinforge. I would also recommend reading through everything on http://solidoodletips.wordpress.com/ if you are comfortable doing so.


I'm not sure if Skeinforge has a "brim" because I do not use skeinforge. A brim is a layer around your part that helps stick your print to the bottom.


If you are having success with heating the bed, then you might not need a brim. It helps me on some very-warping prints. smile