Smoke came out from the psu cable May 06, 2014 12:35PM |
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Re: Smoke came out from the psu cable May 06, 2014 01:36PM |
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Re: Smoke came out from the psu cable May 06, 2014 01:58PM |
Registered: 10 years ago Posts: 76 |
Quote
bobtidey
Even if you are just using +12V supply form the ATX unit then you need the larger multi-way plugged in as well. This has two +12V connections in it as well and multiple grounds. It will spread the load current over more wires and connectors.
You could up the gauge of the wiring to something more like the wire used to go into the Duet but if you aren't going to use the multi-way then I'd go direct from the PSU to the Duet and miss out the distribution board altogether.
Re: Smoke came out from the psu cable May 06, 2014 02:36PM |
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Re: Smoke came out from the psu cable May 06, 2014 06:12PM |
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Re: Smoke came out from the psu cable May 06, 2014 06:13PM |
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Re: Smoke came out from the psu cable May 06, 2014 09:56PM |
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I Printed this thing [www.thingiverse.com] and fit it on my PSU.Quote
droftarts
Chaisaeng, what kind of PSU are you using? I guess not an ATX PSU? Is it something like this: [www.ebay.co.uk]
If it is, you don't even need to use the ATX Power PCB. Just wire the white 2-core cable directly from the PSU to the Duet.
Ian
RepRapPro tech support
Re: Smoke came out from the psu cable May 06, 2014 10:05PM |
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Re: Smoke came out from the psu cable May 07, 2014 02:01AM |
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Re: Smoke came out from the psu cable May 07, 2014 09:08AM |
Registered: 10 years ago Posts: 2,472 |
Quote
Chaisaeng
I just visit molec site regarding maximum rating of this connector. It seem the standard
ATX wires the i used will not handle current requires by ormerod.
Re: Smoke came out from the psu cable May 07, 2014 10:42AM |
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Re: Smoke came out from the psu cable May 07, 2014 10:59AM |
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Re: Smoke came out from the psu cable May 07, 2014 11:55AM |
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Re: Smoke came out from the psu cable May 07, 2014 01:20PM |
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Re: Smoke came out from the psu cable May 07, 2014 02:35PM |
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Re: Smoke came out from the psu cable May 07, 2014 03:25PM |
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Re: Smoke came out from the psu cable May 08, 2014 05:04AM |
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Re: Smoke came out from the psu cable May 08, 2014 06:44AM |
Registered: 10 years ago Posts: 76 |
I'm not printing ABS yet but will do it soon. I have a using a 12 V LED psu and test heating the bed to 120 C and the hot end to 220 C for an hourQuote
Joar107
My duet got really burned today the white speaker cable got to hot and melted some parts of the board, do not have time to investigate it right now.
I will order a new duet right away but I really have to find out what can be done different to avoid this in the future.
This happened when i tried to go up to 120 with the bed for a big abs print i normally stay at 100.
I'm using the original power supply.
Re: Smoke came out from the psu cable May 08, 2014 08:47AM |
Registered: 10 years ago Posts: 2,472 |
Quote
Joar107
My duet got really burned today the white speaker cable got to hot and melted some parts of the board, do not have time to investigate it right now.
I will order a new duet right away but I really have to find out what can be done different to avoid this in the future.
This happened when i tried to go up to 120 with the bed for a big abs print i normally stay at 100.
I'm using the original power supply.
Re: Smoke came out from the psu cable May 08, 2014 08:58AM |
Registered: 10 years ago Posts: 76 |
Re: Smoke came out from the psu cable May 08, 2014 09:08AM |
Registered: 10 years ago Posts: 2,472 |
Quote
Chaisaeng
I have these wires in my RC box which causing me confusing abot the wire gauge.
Any one know abot this. The wire i bought ages ago was Astro Flight 16 GA is it a 16 AWG?
[attachment 32401 image.jpg]
Re: Smoke came out from the psu cable May 08, 2014 02:43PM |
Registered: 10 years ago Posts: 94 |
Yes its still works I have attached the cables direct know after removed the melted block and so far it looks good I havent tried printing yet but it heats up as it should.Quote
dmould
Quote
Joar107
My duet got really burned today the white speaker cable got to hot and melted some parts of the board, do not have time to investigate it right now.
I will order a new duet right away but I really have to find out what can be done different to avoid this in the future.
This happened when i tried to go up to 120 with the bed for a big abs print i normally stay at 100.
I'm using the original power supply.
The most likely cause was a loose terminal block screw. These should be re-tightened every week or so if you are not using crimped ferrules on the wires. With luck the board is repairable - or remove the terminal block and solder the wires direct. Terminal blocks that have the screw in direct contact with the wire are unsuitable for use with raw stranded cable - the ones with a spring leaf under the screw are better for that application, or the type that clamp the wire under a washer.
Dave
(#106)