1 Topic by demock (edited by demock 2013-03-23 13:16:38)

  • demock
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Topic: Heat core does not heat Hot end.

I looked up several documents about hot end problem. When I swapped both plug for heating(end/bed), bed got heated. So I concluded the main board is fine. Then I peeled insulation thingy covers hot end and disconnected heat core cable and found this. (in the follow video). And I was ensured there is no broken cable either.

[video]

As it revolves some white powder drops. Was it clay that hold the heating material? It's $599 machine but it's kinda embarrassing.

I have to order new heat core unless there is any other option.
Heat core itself is $15 but shipping is $36.
Help me.

http://www.soliforum.com/misc.php?action=pun_attachment&item=1565

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2 Reply by danny

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Re: Heat core does not heat Hot end.

Where about in the world are you?

Solidoodles shipping cost take the mick more than their shipping times for actually getting the printer. There may be a different supplier closer to you with more reasonable fees.

3 Reply by dubbsd

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Re: Heat core does not heat Hot end.

resisters are not standard on the OD  ( some are hour glass shaped , some are egg shaped exc)
the hole in the block is 5.1mm so they use a heat-sink compound to fill the void.
I have ordered a 12V 40W heater Cartridge for $13.99 + S&H from
QU-BD
it has a SS outer housing
that is 5mm in Ø
http://store.qu-bd.com/product.php?id_product=23

Ultimaker S3.

4 Reply by Ghostling

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Re: Heat core does not heat Hot end.

or if you can solder, just buy a 6.8 ohm resistor and replace the resistor yourself.

5 Reply by danny

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Re: Heat core does not heat Hot end.

I don't particularly like the idea that you fill in the hour glass shape with thermal paste. Thermal paste is ok, but you're meant to use it sparingly, it's supposed to fit imperfections, not be an answer to a bad idea.

So with this resistor idea we're using a 3w resistor at more than ten times it's rating, pretending that the metal block is a good enough heat sink, hoping that splashing loads of thermal paste in the hole will make up for using the wrong part in the wrong way.

Stupidly enough, using a heater as in a proper heater not just a resistor, is only a few pence more expensive...

6 Reply by demock (edited by demock 2013-03-26 11:13:22)

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Re: Heat core does not heat Hot end.

[danny] I live in South Korea. Upper guys are sickening me day by day.

[dubbsd, Ghostling] That might be a good idea cuz shipping is relatively chip. But I don't have proper skill for filling compound and actually I'm not a machine person. So I decided to order Solidoodle made one rather than bear possible $599 waste.

7 Reply by danny

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Re: Heat core does not heat Hot end.

At the risk of sounding stupid,

why not just order a ceramic heater from china?

I've just bought a load of heaters from this ebay seller:
http://stores.ebay.co.uk/fabster3d

he ships from China so given that you're a short distance away I suspect you may get shipping cheaper than I got it to the UK!

8 Reply by demock (edited by demock 2013-03-26 12:03:54)

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Re: Heat core does not heat Hot end.

[danny] Thank God... that IS chip.

But what a tragic..
http://www.soliforum.com/misc.php?action=pun_attachment&item=1629

Thanks for the link but no change is made.

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