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Commit 71749e7d authored by Jake Read's avatar Jake Read
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add part cooling fan

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log/2021-09-22_first-pcf.png

200 KiB

log/2021-09-22_pcf-almost.png

731 KiB

......@@ -146,4 +146,20 @@ OK, it's 10pm and I'm spent but I think this is done.
![done](2021-09-01_gg-newagain.png)
I have to order that alu spacer, but otherwise I'm ready to print and test this. Will probably get the -fxy together and moving again before I fab this... back here in a week or less, let's hope.
\ No newline at end of file
I have to order that alu spacer, but otherwise I'm ready to print and test this. Will probably get the -fxy together and moving again before I fab this... back here in a week or less, let's hope.
## 2021 09 22
For NIST, I want to print little tiny things - so we want a part cooling fan (PCF). This is actually a totally not-ignorable aspect of hotend design, turns out.
My first shot obstructed the hotend cooling fan (HCF)... this was it:
![pcf](2021-09-22_first-pcf.png)
So I think I will try to move the HCF up, to get the PCF below it; both should have unobstructed flow into the fan.
Well I can just barely make this work all flush-like:
![pcf](2021-09-22_pcf-almost.png)
Though to really do it, I need about 5mm more stack on Z, I figure I move the nozzle down by about as much, or the motor up, but either (done well) has me re-printing the main plate, which is an overnight job.
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