<![CDATA[SoliForum - 3D Printing Community — I need a new hotend, pronto!]]> 2013-05-17T10:00:49Z PunBB https://www.soliforum.com/topic/2275/i-need-a-new-hotend-pronto/ <![CDATA[Re: I need a new hotend, pronto!]]> FatalDischarge wrote:

Just curious, is it bad to use Arctic Silver brand thermal paste?

I can't see any reason not to other than the need to be careful it doesn't short any of the wires. Arctic silver is conductive thanks to all that silver. I used a bit of Arctic silver between my heater core and my nozzle this last time that i put it back together. The aluminum block had a bit of a rough finish and i wanted to make sure there was no air gap without going all out and lapping the block and back of the nozzle.

]]> https://www.soliforum.com/user/1739/ 2013-05-17T10:00:49Z https://www.soliforum.com/post/23095/#p23095 <![CDATA[Re: I need a new hotend, pronto!]]> Just curious, is it bad to use Arctic Silver brand thermal paste?

]]> https://www.soliforum.com/user/587/ 2013-05-17T08:39:38Z https://www.soliforum.com/post/23094/#p23094 <![CDATA[Re: I need a new hotend, pronto!]]> Yup, tis why I suggested earlier:

adrian wrote:

....you are reading 350°.. then you've not installed it properly and have a short somewhere.......

I'm guessing the 'fix' here was moving it so the short was removed.. but if its still bouncing, then its probably still close to a short condition and causing parasitic readings...

Given the importance of the thermistor on the hot end to avoid catastrophic failure... I'd be double and triple checking the thermistor is insulated all the way to the glass head...

]]> https://www.soliforum.com/user/663/ 2013-05-12T08:22:38Z https://www.soliforum.com/post/22561/#p22561 <![CDATA[Re: I need a new hotend, pronto!]]> The 350 reading is a short in the thermistor.  If you had a section of the wires near the head of the thermistor without insulation that are both touching the brass of the nozzle, it will short and read 360. The same if they are able to touch each other.

]]> https://www.soliforum.com/user/14/ 2013-05-12T08:18:10Z https://www.soliforum.com/post/22559/#p22559 <![CDATA[Re: I need a new hotend, pronto!]]> Could I have wired something wrong? Nothing is on but the temp is bouncing around.
UPDATE: Not sure how but I got it.

]]> https://www.soliforum.com/user/587/ 2013-05-12T05:39:21Z https://www.soliforum.com/post/22548/#p22548 <![CDATA[Re: I need a new hotend, pronto!]]> Not that I know of, but that's all you need to do. Change the thermistor setting.. Everything else is normal firmware stuff documented on lawsy GitHub readme

]]> https://www.soliforum.com/user/663/ 2013-05-12T05:19:21Z https://www.soliforum.com/post/22547/#p22547 <![CDATA[Re: I need a new hotend, pronto!]]> Is there an actual guide somewhere that explains how to do this?

]]> https://www.soliforum.com/user/587/ 2013-05-12T05:17:07Z https://www.soliforum.com/post/22546/#p22546 <![CDATA[Re: I need a new hotend, pronto!]]> ya - if its an EPCOS 100k of that type

]]> https://www.soliforum.com/user/663/ 2013-05-12T04:51:16Z https://www.soliforum.com/post/22543/#p22543 <![CDATA[Re: I need a new hotend, pronto!]]> I'm guessing change that top 6 to a one?

#define TEMP_SENSOR_0 6
#define TEMP_SENSOR_1 0
#define TEMP_SENSOR_2 0
#define TEMP_SENSOR_BED 6

]]> https://www.soliforum.com/user/587/ 2013-05-12T04:50:18Z https://www.soliforum.com/post/22542/#p22542 <![CDATA[Re: I need a new hotend, pronto!]]> you need to have set the correct thermistor value for the type of thermistor you have installed on your hot-end. Most of the J-Type hotends come with EPCOS thermistors which you set to 1.

It is at the very top of configuration.h . 

If its an original hot-end from Solidoodle, then it will be the same as your previous one, so no change neccesary. That means if its an SD hot end and you are reading 350°.. then you've not installed it properly and have a short somewhere... as at 350° your PEEK would be a gloopy mess already smile

So double check that the thermistor is not shorting on the hot end somewhere etc etc... if its an SD hotend. If its not, confirm what type of thermistor you received and then set that in Configuration.h , recompile and upload.

]]> https://www.soliforum.com/user/663/ 2013-05-12T04:37:32Z https://www.soliforum.com/post/22540/#p22540 <![CDATA[Re: I need a new hotend, pronto!]]> I have everything wired and ready. Now what? Why is the hotend temp jumping up to 350? PID autotune is not working and I cannot find clear and concise directions on what to do after a hotend upgrade.

]]> https://www.soliforum.com/user/587/ 2013-05-12T04:32:31Z https://www.soliforum.com/post/22539/#p22539 <![CDATA[Re: I need a new hotend, pronto!]]> Elmoret, I appreciate the offer and I love your attitude,  the Solidoodle parts department could learn something from you. A buddy of mine wanted some parts printed for a project but he's put it on hold. This is not the emergency it once was and it might be good to take some time away from the printer. I hear the weather has been nice but I wouldn't know, maybe I should see for my self. wink
Iv'e decided to try my luck with Tri-d. Hopefully all goes well and if it doesn't, I know where to turn for support. Thank you to all and I'll let you know how it goes.

]]> https://www.soliforum.com/user/587/ 2013-05-06T03:40:47Z https://www.soliforum.com/post/21868/#p21868 <![CDATA[Re: I need a new hotend, pronto!]]> I've got a Solidoodle hot end, never used, that I can mail you if you need one fast - just shoot me a PM.

]]> https://www.soliforum.com/user/221/ 2013-05-05T01:40:30Z https://www.soliforum.com/post/21771/#p21771 <![CDATA[Re: I need a new hotend, pronto!]]> Yeah, they are a bit hard to find sometimes.  I do know that hotends.com stocks them around noon every friday, but that's almost a week from now, so I understand not wanting to wait.

]]> https://www.soliforum.com/user/712/ 2013-05-04T20:13:34Z https://www.soliforum.com/post/21759/#p21759 <![CDATA[Re: I need a new hotend, pronto!]]> I've been looking for some info on the tri-d hotends and I have not found anything bad about them, nothing good either. I've also been looking around for other j-heads and no one seems to have .35, 1.75 sizes in stock, besides tri-d, not even hotends.com.
I think I will go with the one from tri-d but I'm not going to order till tomorrow or Monday. I don't mind being a guinea pig. However, I do want to gather some more info before I commit.

]]> https://www.soliforum.com/user/587/ 2013-05-04T19:55:31Z https://www.soliforum.com/post/21757/#p21757