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is it possible to change temperature gap that aborts print?

Posted by Brummie 
is it possible to change temperature gap that aborts print?
January 27, 2019 03:25AM
Hi,

with my old fanduct I had some rotten prints due to loss of steps, so I build an improved one.
The new one is very efficient now. Cools enuf at 20% fan speed.
... but as print objects are very different, it may occure, that die airflow will be reflected from the printed part and cool down the hotend.
Which in turn aborts the print with some error like the one in the second picture.

So I'd like to know, whether the gap, that aborts the print can be configured.
I don't know, if the heater is capable to reach temperature with cooling, but I'm confident.

To show what happens some pictures:

when the heater speeds up for a bridge, and support has enuf room to eat the airflow, heating recovers from cool down.

When support under the bridge reflects the airflow, this is what happens:

Re: is it possible to change temperature gap that aborts print?
January 27, 2019 12:46PM
Yes you can. See [duet3d.dozuki.com].

Do you have a silicone sock over the heater block? If not, fitting one will reduce the effect of the fan on hot end temperature.



Large delta printer [miscsolutions.wordpress.com], Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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