Where do you Cal home?
Wow that fan is much bigger than I expected. That is really good advise about the flow switch. Should i build an active peltier water chiller, is it needed? Does the head assist in the cutting like a torch or is it to blow stuff out of the way?
you can buy tin adaptors to go from 8 inch to 6 inch and then front 6 inch to 4 . .The fan in link is 10 inch I use a 8 inch one.Air assist manly stops the item catching fire ,as well as keep focal lens clean and helps cutting .NEVER LEAVER LASER WHILE IT IS http://CUTTING.Do you have a k40 laser yet?The ebay air assist laser head also uses 18mm focal lens .A lot of people use just a aquarium air pump (large metal case one)do not know model ,I try ed one and didn’t like not being able to adjust air flow,as with my shop vac I use 10 psi for cutting and bugger all for engraving.
Do not waste your time with the peter device as it will never provides enough cooling ,just freeze 2 liter milk bottles with water and drop into tank to cool water.and keep an eye out on the auction sites for a water chiller undersinkwater, mine cost $20 second hand.p’s the water chillers cw3000 is not refrigerated ,it is just a water radar and fan DO NOT BUY http://ONE.in winter I plumb my cooling water outside to a 300mm computer radator $30 and 3 computer fans $40 ebay…I also only cut for 3 hours before resting my laser tube. So far I have blow 1 tube and worn on out at 600 hours. A hour meter is also a good idea at only $20 .other water cooling ideas are an old refrigerated water bubbler like in schools etc.also try and keep water tank at same level as laser tube other wise when pump stops water drains out of tube a lowing bubbles to form ,which can become traped when pump starts next time.
Awesome instructions! Not sure what an undersinkwater is though. Would an air eliminator we use in residential plumbing work to get rid of bubbles?
under sink water chiller is for kitchen to have a separate tap with chilled water
http://www.ebay.com.au/itm/Filtered-Water-Chiller-Unit-IC8-Twin-Stage-Undersink-Water-Filter-Kit-DIY-/222302857946?hash=item33c2486ada:g:l2gAAOSwawpXsUWs
the problem is that water drains back through the pump as well as the water that has been through the tube return hose
Interesting, you got that for $20?! Sweet deal. Looks like the milk jugs for me for awhile