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  1. #1
    Quote Originally Posted by Desertboy View Post
    If you have a mains thermostat just tape the probe to the outside of the bucket accuracy will be good enough.

    I use these
    http://www.ebay.co.uk/itm/220V-10A-M.../142426824134?

    daily very reliable never had one fail over 5 years.
    I presume that as long as the temps are in the ballpark around 120-140F then it is okay? Don't have to be so bang on?

    [edit]
    Multi buy, 3 for 2 https://www.ebay.co.uk/itm/292039778...r=591027809178
    Last edited by JOGARA; 03-10-2017 at 10:59 PM.

  2. #2
    What are you using for a heater?

    I would think something like this would be good http://www.thermosensedirect.com/aca...iABEgLg2PD_BwE

    I'm also thinking a bucket in a bucket, the outer container galvanised steel the inner one plastic. Water is the outer container with heater it the bucket and the inner plastic bucket sat on bricks inside the outer container. You control the temperature in the outer bucket the water acts like a heat sink and evens out the temperature spikes. You would have to leave a water pump circulating the warm water 50-60c you could use a hot water pump from a caravan cheap as chips.

    Why Galvanised? Because it conducts heat better without the danger of melting, stainless steel is a crap conductor and expensive. I would worry the heater I linked to could melt the plastic if the conduction rate is too slow. If you used an arduino and PWM this would be a non issue and you could use plastic all round, think of it as a heated bed on a 3d printer.

    No reason you couldn't use am immersion heater element if you did a bucket in a bucket setup.
    Last edited by Desertboy; 04-10-2017 at 05:26 AM.
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)

  3. #3
    Thinking of using a £10 1000w hotplate http://www.ebay.co.uk/itm/202025024429
    I actually already ordered these for some reason xD

    So that plus a 5L stainless pot http://www.ikea.com/gb/en/products/c...-art-80129725/

  4. #4
    Quote Originally Posted by JOGARA View Post
    Thinking of using a £10 1000w hotplate http://www.ebay.co.uk/itm/202025024429
    I actually already ordered these for some reason xD

    So that plus a 5L stainless pot http://www.ikea.com/gb/en/products/c...-art-80129725/
    That would work fine, stainless is fine I bought a stainless steel still from America may years ago that I have never used and never will probably lol but I love because it's work of art.

    Stainless is a poor conductor but when you have 1kw hot plate that's not really at issue lol.
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)

  5. #5
    I'm also thinking a bucket in a bucket,
    Do you not think the inner bucket would float like a ship
    ..Clive
    The more you know, The better you know, How little you know

  6. #6
    I thought the solution was mostly acid, sulphuric has an SG of 1.85! It's 85% heavier!

    But is floating even an issue? and I'm sure a clamp can by rigged up rather quickly if this was an issue.
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)

  7. #7
    The acid baths are not heated so no need to bucket within a bucket to heat?

  8. #8
    Quote Originally Posted by Desertboy View Post
    I thought the solution was mostly acid, sulphuric has an SG of 1.85! It's 85% heavier!

    But is floating even an issue? and I'm sure a clamp can by rigged up rather quickly if this was an issue.
    Not that it changes your point, but most definitely not "mostly" sulphuric acid... in fact it's pretty dilute using the LCD process. Somewhere around 1 part acid to 15 parts water by volume for 6 asf.

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