Upgrading heat bed May 24, 2016 06:48AM |
Registered: 9 years ago Posts: 443 |
Re: Upgrading heat bed May 24, 2016 07:36AM |
Registered: 9 years ago Posts: 475 |
Re: Upgrading heat bed May 24, 2016 09:06AM |
Registered: 9 years ago Posts: 475 |
Re: Upgrading heat bed May 24, 2016 09:47AM |
Registered: 8 years ago Posts: 177 |
Re: Upgrading heat bed May 24, 2016 10:11AM |
Registered: 9 years ago Posts: 475 |
Re: Upgrading heat bed May 24, 2016 10:34AM |
Registered: 10 years ago Posts: 1,159 |
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aussiephil
Highly recommend these guys [www.aliexpress.com]
If they don't have what you want they will make it
I installed a 1200W 500mm one under the 600mm x 8mm ATP5 cast plate
[www.aliexpress.com]
Lesson from that...... make the pad nearly the same size as the bed to remove cool edges, I'm considering ordering a 600mm round one now
Oh I have no real issue with the thermistor in mine..... I consistently see a simple 5 degree lower thermistor reading than the measured surface temperature
Second PRZ on using the Ceramic fibre paper, i have 2 x3mm thick under mine.
I ordered a 75A SSR on heatsink from [www.ebay.com.au] have bought quite a bit from that store over the last few years.
Really the rating is no doubt inflated but it's not much more than the cheaper 25A units.
Re: Upgrading heat bed May 24, 2016 01:34PM |
Registered: 11 years ago Posts: 14,685 |
Quote
aussiephil
Highly recommend these guys [www.aliexpress.com]
If they don't have what you want they will make it
Re: Upgrading heat bed May 24, 2016 07:54PM |
Registered: 8 years ago Posts: 177 |
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PRZ
Safety wise, I will be a bit concerned having an aluminium bed without insulating surface in direct contact with a heat pad, as there is no double electrical insulation and you may touch the bed.
However, on my own setup the aluminium bed retainers are easily accessed by my hands and are electrically connected to the aluminium spreader, so that is not much better. I may add wood shields or make retainers in wood (no plastic will handle 150°C).
Re: Upgrading heat bed May 24, 2016 08:29PM |
Registered: 8 years ago Posts: 177 |
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dougal1957
That supplier will also do one with a small hole of say 10-15 mm in the centre of the pad to allow a thermister to be mounted in the center of the bed and this is What I will be asking for when I order my 600mm diam one?
Doug
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dc42
As noted by others, if you get one with built-in thermistor, it will over-read because it isn't in contact with the bed plate. I have learned to correct for this, but one with a small hole in the middle for your own thermistor as Doug suggests would be better.
Re: Upgrading heat bed July 09, 2016 08:00AM |
Registered: 9 years ago Posts: 443 |
Re: Upgrading heat bed July 09, 2016 09:07AM |
Registered: 11 years ago Posts: 14,685 |
Quote
bgkdavis
Well Ive finally got a silicone 240V bed from these guys [www.aliexpress.com] , getting it was something of a drama, but all is resolved now.
The problem I've got now is the pad has double sided contact surface on one side and on the top there is a 6mm bulge where the cables are connected, which means that if I just pup a plate on top of it then it wont sit flat.
I was wondering how others resolved this issue, I guess I could mount it upside down onto an aluminium plate and use the heat resistant padding to absorb the bulge, but then I would have to drill holes into it for the mounting screws.
Re: Upgrading heat bed July 09, 2016 06:41PM |
Registered: 9 years ago Posts: 443 |