View Single Post
Old 06-21-2021, 10:51 AM   #10
sam_sam_sam
Badcaps Veteran
 
Join Date: Jul 2011
City & State: Some times Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 2,973
Default Re: 3d printed electronics bench accessories and equipment

Quote:
Originally Posted by clearchris View Post
If you are doing this for the hotend so it's quiet, I'd just buy a larger, quiet fan like a noctua. Depending on the printer, you can control them with PWM so they are basically silent. Aside from startup and cooldown though, that fan shouldn't vary a whole lot or you are going to get jams. By the time a sensor picks up an increase in temp, the damage is likely already
I am talking about the cooling fan in the power supply this little fan is very noisy when it is running as far as I know it only comes on when the heated bed is being powered on
__________________
9 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *


These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
2 Hem Saw Computer Stack Board

All of these had CAPs POOF
All of the mosfet that are taken out by bad caps
sam_sam_sam is offline   Reply With Quote