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  1. Small car radiator and a couple of 120mm 12v fans will do the job I reckon.

  2. #42
    Quote Originally Posted by irving2008 View Post
    Small car radiator and a couple of 120mm 12v fans will do the job I reckon.
    do you reckon , or do you know ?

    I'm all for experimenting ... but knowledge is good )

  3. #43
    remember a freezer is a heat pump ! ... 4x efficient ! :)

  4. #44
    Isaac's Avatar
    Lives in Manchester, United Kingdom. Last Activity: 2 Weeks Ago Has been a member for 3-4 years. Has a total post count of 45. Received thanks 3 times, giving thanks to others 0 times.
    Don't let it go above 22 or you will shorten the life of the tube. Get to poundland and buy 2-3 of the aluminium bottles in the camping section. Fill them with water and chuck in the freezer. Use 2 when the water is at 18 and top up as needed.

  5. #45
    Quote Originally Posted by Isaac View Post
    Don't let it go above 22 or you will shorten the life of the tube. Get to poundland and buy 2-3 of the aluminium bottles in the camping section. Fill them with water and chuck in the freezer. Use 2 when the water is at 18 and top up as needed.
    even better .. I re use the 2l bottles thet you get the cheap lemonaid or coke in ! ... even if you don't drink it, it's cheaper than 1 !

  6. #46
    today is 29deg in the shop (air temp)... ideally I want the laser water at 15-20 deg ... so a radiator at room temp might help, but is not the total solution.

  7. #47
    I'm currently looking at used freezers on ebay ,,, seems like 20 is average which seems like a no brainer,

    Next thing is coolant.

    Laser manual says water and replace every week

    I'm thinking car antifreeze ??? what do you think about that ?

    Remember , in the winter... temps drop below Z in the work shop !

  8. #48
    You want deionised water and some sort of anti freeze that can inhibit corrosion and algae growth etc. I use a chiller and the hpc antifreeze, but will only change my water every 3 months or so

  9. #49
    just 'salvaged' the under counter freezer from our kitchen .. It's not been used for about 7 yrs as it cut out some times ... problem was likely lack of ventilation from the sealed run of cabinets and appliances it was housed in ! :/

    I plan to fill it with 2L pop bottles filled with water ... as a cold store ... then run a micro bore copper tube (I already have) as sort of a coil ... but to fit where I can ...

    I can't see why it wont work ?

    Industrial water chillers are plenty 's ! ... so I'm hoping to save :) ... hopefully I can use the same set up for my water-cooled spindle too :)

    Pics will follow :)

  10. #50
    How are you getting on with your laser, I have been thinking again about buying one of these machines?
    CNC routing and prototyping services www.cncscotland.co.uk

    ADD ME ON FACEBOOKS

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