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extruder blower sucking in heat bed air
Closed, WontfixPublic


The way the blower is oriented could prevent proper cooling since the intake is facing the bed.

Event Timeline

west created this task.Dec 17 2018, 12:42 PM
west added a subscriber: anolen.Dec 18 2018, 7:33 AM

This is a request from @anolen

west triaged this task as Low priority.Dec 18 2018, 4:14 PM
logan added a subscriber: logan.Dec 19 2018, 7:19 AM

This could be a contributing factor in T4926

@logan, possibly, that is what I am testing now. Ill let yall know how it goes

So, the fan working better doesn't solve the PLA poor printing problem BUT in my testing I did determine that the fan does work more effectively if it is pulling air from above the tool head instead of near the bed.

CONTROL CONTROL PRINT - NO FAN - (Reslice w/no fan)

(old fan design)

(new fan design)

(old fan design)

(new fan design)

I support this change. :)

west moved this task from Report Issues Here to Needs Review on the Quiver board.Jan 7 2019, 12:41 PM
west added a comment.Jan 8 2019, 7:41 AM

Do we have a final decision on this? I need to know which blower shroud we are using to complete T5179

anolen added a comment.Jan 9 2019, 3:26 PM

Switching the fan around (fan pulling air from above instead of bellow) does make the fan cooling more effecting. However, after further testing it has not be determined that the benefit to the fan change is worth the work that will need to go into it happening. The decision R&D has come to is to keep the original fan orientation.

logan added a comment.Jan 9 2019, 3:29 PM

Is there more work required? I thought this change was working well.

Steven added a comment.Jan 9 2019, 3:43 PM

@logan the work done fixing the tool head cabling and the tool head hitting the x-idler would need to be redone.

Steven closed this task as Wontfix.Jan 10 2019, 12:00 PM

Closing this out. Please reopen if we see irreconcilable issues with profiles through Betas.