Water chiller temperature setting

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Edgil Hector
Posts: 3
Joined: Thu Aug 01, 2019
Location: Huachuca City, Arizona
Country: United States
Nickname: Scott
Laser Machine Make or Type: K40
Laser Power: 39W
Laser Bed Size: 9x11
Home Position: TL
RDWorks Version: v8.01.18
Windows Version: Win10 64bit
Accessories: I just bought my printer last week. I bought an oversized water chiller for it and some other bits but I have not put then on yet. It is a work in progress.

I am very new to this laser and before I got the laser, I purchased a used ECO Plus 1/4hp chiller in preparation for the laser purchase. I had to disassemble it and clean it out but it works very well. It is capable of chilling 100 gal @ 0°C. That is crazy cold. I know this chiller is overboard but it only cost me $80. I was wondering what temperature I should set it at? What is the maximum cooling that I should do on the tube? I have a water temperature flow meter on its way to put in line once I attach this chiller so I can monitor the actual temperature out of the tube.
Starlord
K40 learners permit
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Doug Fisher
Posts: 206
Joined: Sat Aug 20, 2016
Location: Atlanta, Georgia
Country: USA
Laser Machine Make or Type: Ke Hui KH-7050
Laser Power: 80W EFR F2
Laser Bed Size: 700x500
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: v8.01.18 & 8.01.33
Ruida Controller: RDC6442
Windows Version: 10
Accessories: Ruida RDC6442G EC controller, 2" lens, S&A CW5000 chiller, chuck type of rotary attachment, Russ' DoHickey (sp?), mA meter, a growing collection of tools and oddities to keep it running!

18 degrees C/65 F
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fred ungewitter
Posts: 50
Joined: Tue Aug 16, 2016
Location: East Central FL, USA
Country: USA
Nickname: fred
Laser Machine Make or Type: Redsail Clone
Laser Power: 60W
Laser Bed Size: 500 x 700
Home Position: TR
RDWorks Version: 8.01.18
Windows Version: Windows 7
Accessories: Chuck style rotary, 30 ma meter, LightObjects CW5000 chiller, muffin fan anti-condensate blower, LightBurn software

I'm using 20-21°C for a 60w laser on a chiller with computer control. When the laser is in use, it turns on the compressor about every five minutes or so, runs for one or two and cycles again.
fred

Redsail clone 60w 700 x 500 REAL 60w Puri tube
home upper right, chuck type rotary 15000 pulse setting
RDW 8.01.18
Win7

Emblaser A3 4w diode laser
BCN3D Sigma Dual Extruder 3d printer
LMS Mini-mill
Cube 3rd gen 3d printer, universal filament mod
Under construction: OX CNC 1000x750 router
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User avatar
Edgil Hector
Posts: 3
Joined: Thu Aug 01, 2019
Location: Huachuca City, Arizona
Country: United States
Nickname: Scott
Laser Machine Make or Type: K40
Laser Power: 39W
Laser Bed Size: 9x11
Home Position: TL
RDWorks Version: v8.01.18
Windows Version: Win10 64bit
Accessories: I just bought my printer last week. I bought an oversized water chiller for it and some other bits but I have not put then on yet. It is a work in progress.

I will adjust my temperature accordingly. I was getting a lot of condensation on the laser tube and the water tubing. I was running it at 7 C.
Starlord
K40 learners permit
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Doug Fisher
Posts: 206
Joined: Sat Aug 20, 2016
Location: Atlanta, Georgia
Country: USA
Laser Machine Make or Type: Ke Hui KH-7050
Laser Power: 80W EFR F2
Laser Bed Size: 700x500
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: v8.01.18 & 8.01.33
Ruida Controller: RDC6442
Windows Version: 10
Accessories: Ruida RDC6442G EC controller, 2" lens, S&A CW5000 chiller, chuck type of rotary attachment, Russ' DoHickey (sp?), mA meter, a growing collection of tools and oddities to keep it running!

>> I was running it at 7 C.<<

Wow :)
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