Old 11-19-2014, 09:42 PM #1
Junior Member
 
Join Date: Nov 2014
Posts: 4
Rep Power: 0
NutsnBolts is on a distinguished road
NutsnBolts NutsnBolts is offline
Junior Member
 
Join Date: Nov 2014
Posts: 4
Rep Power: 0
NutsnBolts is on a distinguished road
Default Laser Heatsinks

Hello All,

I am upgrading one of the 3D printers we run at my printshop with a laser engraver. We have a bunch of diodes we're testing (A140, M140, NDB7875) and would like to know what heatsinks will give us extended runtimes in the order of 30mins - 1 hour.

We're hoping to run the A140's at around 1A/1W and the NDB7875 at around 1.8A.2.5W. The lasers are in the copper aixiz modules currently and we already have a few of these: 12mm Holder Clamp Mount Heatsink Cooling Laser Module Pointer Lens Mirror | eBay

Or something very similar.

Seeing as the laser will be used for cutting and engraving it will be run duty-cycled, whereby it will be on for cutting moves and off for movements.

Any advice would be appreciated, I have no experience with diode lasers in order to guess at how hot they get, and what heatsinking is necessary.

Thanks!


NutsnBolts is offline   Reply With Quote


















Old 11-19-2014, 11:02 PM #2
upaa27's Avatar
Class 2M Laser
 
Join Date: Jul 2013
Location: San Francisco
Posts: 624
Rep Power: 191
upaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond repute
upaa27 upaa27 is offline
Class 2M Laser
upaa27's Avatar
 
Join Date: Jul 2013
Location: San Francisco
Posts: 624
Rep Power: 191
upaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond reputeupaa27 has a reputation beyond repute
Default Re: Laser Heatsinks

Use a big heat sink if you are going to run it for that long. And a fan. Possibly more.
upaa27 is offline   Reply With Quote
Old 11-19-2014, 11:05 PM #3
Junior Member
 
Join Date: Nov 2014
Posts: 4
Rep Power: 0
NutsnBolts is on a distinguished road
NutsnBolts NutsnBolts is offline
Junior Member
 
Join Date: Nov 2014
Posts: 4
Rep Power: 0
NutsnBolts is on a distinguished road
Default Re: Laser Heatsinks

Thanks for the reply!

I'm looking for specifics though, do you have experience running either of these diodes over long periods ?

How "big" do you mean, did you take a look at my eBay link ?

I have considered a fan, and will add one if thats what the consensus is.
NutsnBolts is offline   Reply With Quote
Old 11-22-2014, 09:23 PM #4
Class 1M Laser
 
Join Date: Mar 2011
Posts: 145
Rep Power: 78
blasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond repute
blasterman blasterman is offline
Class 1M Laser
 
Join Date: Mar 2011
Posts: 145
Rep Power: 78
blasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond reputeblasterman has a reputation beyond repute
Default Re: Laser Heatsinks

You posted a duplicate topic in general. I responded with some good advice based on hands on experience with long run times and heat sink types.

http://laserpointerforums.com/f44/he...ime-91798.html
blasterman is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 04:12 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC