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Smoke Machine Repair
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kedwardsleisure View Drop Down
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Points: 4243 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 18 January 2019 at 2:25pm
SO much for attempting to gain the moral high ground!
K. Edwards Electronics Engineers

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njw View Drop Down
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Points: 2197 		Post Options Post Options   Thanks (0) Thanks(0)   Quote njw Quote  Post ReplyReply Direct Link To This Post Posted: 19 January 2019 at 9:45pm
Whilst we're on the subject, I've got a 1500w smoke machine here with an o/c heater block, I can't get an exact replacement but can get a generic 1500w heater block, if I was to stick one of those in the machine and refit the thermal switch in the same position on the generic block as it was on the original heater block would I burn a venue to the ground or would it work....?
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mini-mad View Drop Down
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...for this, and anything else your unsure of, I would get a tech to repair it and sign it off for insurance purposes. I'm confident when I can source parts and make the correct repair and have at minimum it pass PAT. But if you you are EVER unsure, get it don't by somebody qualified so that you are inline with you liability insurance and any other paper work that you COULD fall foul of by "bodging" or "hacking" away at and it be the downfall of your company. 

Don't play games with your life or anybody else's. And insurance companies don't pay out on stupidity.
If it sounds like a gorilla is trying to escape, turn it down.
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njw View Drop Down
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Points: 2197 		Post Options Post Options   Thanks (0) Thanks(0)   Quote njw Quote  Post ReplyReply Direct Link To This Post Posted: 16 hours 50 minutes ago at 5:21pm
Originally posted by mini-mad mini-mad wrote:

...for this, and anything else your unsure of, I would get a tech to repair it and sign it off for insurance purposes. I'm confident when I can source parts and make the correct repair and have at minimum it pass PAT. But if you you are EVER unsure, get it don't by somebody qualified so that you are inline with you liability insurance and any other paper work that you COULD fall foul of by "bodging" or "hacking" away at and it be the downfall of your company. 

Don't play games with your life or anybody else's. And insurance companies don't pay out on stupidity.


  

Quite right, I'll be honest, it doesn't sit right with me fitting a non original heater block but was just wondering if anyone had done it with any success. Looks like the dead smoke machine can go in the spares pile then. Smile
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MattStolton View Drop Down
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When blocks melt, you end up with a puddle of molten aluminium to contend with.

Aluminium is surprisingly "reactive", look what it does when powdered, mixed with "rust" and ignited with a magnesium ribbon for a fuse - called Thermite.

Used for "welding" train rails together in situ, when you haven't got a huge power supply for mig/stick/etc...

If the generic replacement block comes with a thermal trip in location, then it should trip before it melts. If you are placing thermal trip to generic block afterwards, you would need to test it to destruction to be sure...mewh.

Edited by MattStolton - 16 hours 38 minutes ago at 5:33pm
Matt Stolton - Technical Director (!!!) - Wilding Sound Ltd
"Sparkius metiretur vestra" - "Meter Your Mains"
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Danielr View Drop Down
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Points: 58 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Danielr Quote  Post ReplyReply Direct Link To This Post Posted: 13 hours 10 minutes ago at 9:01pm
Originally posted by MattStolton MattStolton wrote:

When blocks melt, you end up with a puddle of molten aluminium to contend with.

Aluminium is surprisingly "reactive", look what it does when powdered, mixed with "rust" and ignited with a magnesium ribbon for a fuse - called Thermite.

Used for "welding" train rails together in situ, when you haven't got a huge power supply for mig/stick/etc...

If the generic replacement block comes with a thermal trip in location, then it should trip before it melts. If you are placing thermal trip to generic block afterwards, you would need to test it to destruction to be sure...mewh.
I think you're being a little alarmist regarding the dangers of aluminium.

Why do you think you're need to test a thermal trip to destruction?! 
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