Tusks not cooling enough

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rkv34
Posts: 5
Joined: Wed Nov 22, 2017 6:47 am

Tusks not cooling enough

Post by rkv34 » Sun Nov 26, 2017 9:18 am

Is anyone having issues with the tusks from the d300vs+ kit not providing enough cooling? I'm getting airflow but it's not enough to cool the plastic quick enough. All of these prints used eSun PLA+ that I have had no problems with in the past on my other printer. Even if I lower the temp down to 195C (normally print it around 205C) I still get these issues.

I found a different fan mount on the Ultibots GitHub and it produced much better quality with the fan only running at 50%. Mhackney's post on sublimelayers suggested that he rarely runs the tusks at full blast and gets great results but I've varied the speed from 50-100% and still cannot prevent layers from curling up.

https://github.com/UltiBots/D300VS-PLUS ... _mount.stl
Benchy_205_tusks_50.jpg
Printed at 205C with tusks fan at 50%
Benchy_205_tusks_75.jpg
Printed at 205C with tusks fan at 75%
Benchy_205_tusks_100.jpg
Printed at 205C with tusks fan at 100%

rkv34
Posts: 5
Joined: Wed Nov 22, 2017 6:47 am

Re: Tusks not cooling enough

Post by rkv34 » Sun Nov 26, 2017 9:19 am

And here's my first print with the other fan mount.
Benchy_205_aerofan_70.jpg
Printed at 205C with aero fan at 70%

wesc
Posts: 24
Joined: Wed Aug 02, 2017 7:58 pm

Re: Tusks not cooling enough

Post by wesc » Sat Dec 09, 2017 11:24 pm

Despite multiple attempts and tweaks, I can't get enough cooling with tusks. Do block the hole in the top of the fan, as well as the air exit path through where the leads exit the fan housing. Drilling out the tusks holes to 2mm diam helps. mhackney is working on a triceratops tusk with a central hole for part cooling. I hacked that into my printed housing with a drill. currently testing.

wesc
Posts: 24
Joined: Wed Aug 02, 2017 7:58 pm

Re: Tusks not cooling enough

Post by wesc » Thu Dec 14, 2017 10:36 am

And no luck -more prints ruined due to curling and then layer shifting due to snagging the nozzle, 100% fan. I think I am going to go back to the pelvic dual blowers.

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