<![CDATA[SoliForum - 3D Printing Community — Hot end isn't hot - How to repair]]> https://www.soliforum.com/topic/636/hot-end-isnt-hot-how-to-repair/ Mon, 24 Jun 2013 16:20:40 +0000 PunBB <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/27745/#p27745 pretenda wrote:
solidoodlesupport wrote:

The hotend doesn't have any. You most likely have a dead resistor, or a broken heat core (if you still have nichrome heat core variant.)

Really, it would be best to work on it. You should be able to mail the part back to us in a small envelope for very cheap. If you still have the nichrome variant I would suggest you upgrade to the new heat block style resistor.


So does this include the new heat core?

http://store.solidoodle.com/index.php?r … duct_id=59

It mentions a ceramic heat core on it.

yes.

though quite why you'd replace a weak part that breaks less than a month after ownership with the same (presumably equally weak) part...

the best heater (in my opinion) is a heater block, (like the new heaters), but with a proper heater cartridge in it, not some cheap resistor that's over driven. and breaking in equally short time.

]]> Mon, 24 Jun 2013 16:20:40 +0000 https://www.soliforum.com/post/27745/#p27745 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/27330/#p27330 solidoodlesupport wrote:

The hotend doesn't have any. You most likely have a dead resistor, or a broken heat core (if you still have nichrome heat core variant.)

Really, it would be best to work on it. You should be able to mail the part back to us in a small envelope for very cheap. If you still have the nichrome variant I would suggest you upgrade to the new heat block style resistor.


So does this include the new heat core?

http://store.solidoodle.com/index.php?r … duct_id=59

It mentions a ceramic heat core on it.

]]> Fri, 21 Jun 2013 06:58:32 +0000 https://www.soliforum.com/post/27330/#p27330 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/24849/#p24849 danny wrote:

yeah, my fix has failed.

I'm in the process of creating a new new way for the solidoodle to steal a day of my time... (I will of course post a guide here). (cartridge heater)

To be honest I was pleased with the way my fix lasted, (three months is better than the 3 weeks the original part lasted) but without proper insulation and just relying on Kapton the nichrome burned through the Kapton and then shorted against itself, lowering the resistance/increasing the current and temperature so it'd burn through more tape, and start to kick in over current protection on the power supply randomly turning the machine off and on...

I had started to rebuild the hot end again using nichrome but this time using gum gum (exhaust gasket sealant), but this takes waaay to much time as the nichrome wraps around the nut part about 3 times, and it takes about a day for each layer of insulation to dry...


The trouble shooting part of the post is still valid, but I can't say that I'd recommend that anyone do the fix as performed in this post unless they can find insulated nichrome wire, (I can't find it anywhere!)

In our experience, the resistors have been far more reliable. Once we found the correct resistor, failure rates changed overnight.

]]> Sat, 01 Jun 2013 15:10:18 +0000 https://www.soliforum.com/post/24849/#p24849 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/20769/#p20769 Danny,
I didn't even see this when I had to unplug my barrel, but reading this now, I see that I was going in the right direction.  When I did, I had some issues with the clay cover flaking off and exposing some of the wire (not the nichrome).  I figured Kapton was good for what ails (and pretty cheap in comparison) and just wrapped the whole clay piece in Kapton.  Hopefully this slows the decay that seems to be plaguing some of the users.  It fired up just fine after I re-assembled.

]]> Tue, 23 Apr 2013 18:19:44 +0000 https://www.soliforum.com/post/20769/#p20769 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/20766/#p20766 I haven't printed in a few weeks and today I decided to print some items.  The machine started to heat and got up to 200 degrees and extruded fine.   Then the temp started to drop off and would not reheat.  Okay, bad heating core, I have a spare.  Switched over to my spare hot end and started over.  Temp reached 200 degrees and started to print just fine.  Five mins later the spare hot end will not heat.  What are the chances of two heating cores going bad in the same 30 min window?  I checked the volts at the connector marked "H" (my machine it is marked "PT" but turns on and off with my extruder heat), the volts read 27.  I checked the volts at the extruder and I got the same reading of 27.  If it should be 12, is my machine pushing too much and that caused my heating cores to burn out?  If so how do I fix this issue?

SD2, Mac 10.8.3, Repetier 0.55

]]> Tue, 23 Apr 2013 17:53:44 +0000 https://www.soliforum.com/post/20766/#p20766 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/18890/#p18890 Reply:

Measure the resistance at "4" - you should see exposed leads. If you return the hot-end to us, we can get you a replacement. Otherwise it is available in our store.

Regards,
John

edit:   By 4 he means the exposed leads on either side of the block.  That would make sense...

]]> Sun, 07 Apr 2013 17:41:26 +0000 https://www.soliforum.com/post/18890/#p18890 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/18810/#p18810 I sent this to support:

Hey guys,

Awesome printer!   I love it, unfortunately I suspect my heater is gone (it died 3 weeks after usage.   I didn't do much in the way of printing, either).

Here's an image attached.   I get 12 votes when I put the multimeter at 1 and 3 (do you know the proper names for them?) in the image attached and the heater is turned on.

What's the fastest way to get replacement parts?   Can I order 4 and 5 (the heater cores) from a third party?  Or does it have to be Solidoodle (I want it quickly).

A lot of people everywhere are reporting the hot end is dying.   It seems like a a fault of the design so I hope you folks can send me something soon.

Thanks for all your help smile

]]> Sat, 06 Apr 2013 23:33:17 +0000 https://www.soliforum.com/post/18810/#p18810 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/17412/#p17412 It's been out of stock there for months!!

]]> Sat, 23 Mar 2013 16:14:09 +0000 https://www.soliforum.com/post/17412/#p17412 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/17344/#p17344 Makergear carries insulated nichrome, but it's out of stock at the moment -http://www.makergear.com/products/plast … ment-parts

]]> Fri, 22 Mar 2013 19:06:53 +0000 https://www.soliforum.com/post/17344/#p17344 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/17338/#p17338 yeah, my fix has failed.

I'm in the process of creating a new new way for the solidoodle to steal a day of my time... (I will of course post a guide here). (cartridge heater)

To be honest I was pleased with the way my fix lasted, (three months is better than the 3 weeks the original part lasted) but without proper insulation and just relying on Kapton the nichrome burned through the Kapton and then shorted against itself, lowering the resistance/increasing the current and temperature so it'd burn through more tape, and start to kick in over current protection on the power supply randomly turning the machine off and on...

I had started to rebuild the hot end again using nichrome but this time using gum gum (exhaust gasket sealant), but this takes waaay to much time as the nichrome wraps around the nut part about 3 times, and it takes about a day for each layer of insulation to dry...


The trouble shooting part of the post is still valid, but I can't say that I'd recommend that anyone do the fix as performed in this post unless they can find insulated nichrome wire, (I can't find it anywhere!)

]]> Fri, 22 Mar 2013 18:00:52 +0000 https://www.soliforum.com/post/17338/#p17338 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/16631/#p16631 satman49 wrote:

2 weeks and 2  days old. My  hotend failed tonight.I read all the above of how to test it but  being only 2 + weeks old it shouldn't fail that quick.Not a happy camper!


I have similar problem too as well. I got Solidoodle 3  three weeks ago and hot end isn't hot. On the software, when I tried to warm up the heat extruder, the temperature drops to 20 degree.

]]> Fri, 15 Mar 2013 17:14:10 +0000 https://www.soliforum.com/post/16631/#p16631 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/15936/#p15936 2 weeks and 2  days old. My  hotend failed tonight.I read all the above of how to test it but  being only 2 + weeks old it shouldn't fail that quick.Not a happy camper!

]]> Mon, 11 Mar 2013 03:42:33 +0000 https://www.soliforum.com/post/15936/#p15936 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/15893/#p15893 The nichrome part is out of date, but the post is still a good guide for how to figure out where the problem is.

]]> Sun, 10 Mar 2013 21:53:23 +0000 https://www.soliforum.com/post/15893/#p15893 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/15855/#p15855 Xtruded wrote:

yeah id love more infos on repairing it as its still broken , i  thought i had repair parts in my pile but i didnt !



  im to broke to try an mail support a broken resistor to prove its broken and the solidoodle was a gift and i really dont wanna tell the person who bought for me it broke either or get them involved in the issue .


    What id  really  like is repair info an also STL's so i can print off repair parts before it breaks again ! 

   Please release STL'S of the printed parts , please !

The hotend doesn't have any. You most likely have a dead resistor, or a broken heat core (if you still have nichrome heat core variant.)

Really, it would be best to work on it. You should be able to mail the part back to us in a small envelope for very cheap. If you still have the nichrome variant I would suggest you upgrade to the new heat block style resistor.

]]> Sun, 10 Mar 2013 17:09:52 +0000 https://www.soliforum.com/post/15855/#p15855 <![CDATA[Re: Hot end isn't hot - How to repair]]> https://www.soliforum.com/post/15851/#p15851 yeah id love more infos on repairing it as its still broken , i  thought i had repair parts in my pile but i didnt !



  im to broke to try an mail support a broken resistor to prove its broken and the solidoodle was a gift and i really dont wanna tell the person who bought for me it broke either or get them involved in the issue .


    What id  really  like is repair info an also STL's so i can print off repair parts before it breaks again ! 

   Please release STL'S of the printed parts , please !

]]> Sun, 10 Mar 2013 16:57:29 +0000 https://www.soliforum.com/post/15851/#p15851