Small car radiator and a couple of 120mm 12v fans will do the job I reckon.
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Small car radiator and a couple of 120mm 12v fans will do the job I reckon.
do you reckon , or do you know ?Quote:
Originally Posted by irving2008
I'm all for experimenting ... but knowledge is good )
remember a freezer is a heat pump ! ... 4x efficient ! :)
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 !Quote:
Originally Posted by Isaac
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.
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 !
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
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 :)
How are you getting on with your laser, I have been thinking again about buying one of these machines?
It has served me well so far .
I'm just upgrading the tube to 60w as the 50w original tube is about worn out.
It is about 1 foot longer, so will need to take advantage of the removable panel on the side, so the new tube will "stick out" a bit.
An enclosure will be made to protect the tube from me, and me from the tube !
Cool glad to hear she is doing you well. I was really tempted but in the end I bought some parts from aliexpress to rebuild my old laser.
http://www.mycncuk.com/threads/7231-...uild-log/page2
I need help with mine....