Does anyone know of anybody who sell good extruder barrels, which are strong and ready made ? just ive been having a lot of problem with many of barrels from ebay and other company, and have found that the barrel come away from the ptfe after a number of prints.... if anyone know of anybody or if you sell such a barrel, then please get in touch.. also i am looking for another way of heating the barrel without nichrome heater wire... would be willing to buy a ready made barrell for my mendel if possiable Gary https://reprap.org/forum/read.php?1,56579,56579#msg-56579 Tue, 21 Jul 2026 00:05:15 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,56579,56653#msg-56653 https://reprap.org/forum/read.php?1,56579,56653#msg-56653 S far, I have not made a glass nozzle that you could see past the heater coil and thermocouple, since I was attaching them with Kapton tape. I will try to make one that you can see inside and show the process. It looks like yours still uses a brass heater/nozzle at the bottom end, and a thermal break at the top. You also have nichrome wire wrapped around the glass even though it is larger in diameter than the filament. Looks like you don't need to wrap the nichrome around the glass, and then you could eliminate the thermal break.

Mike]]> rocket_scientist General Tue, 24 Aug 2010 21:05:31 -0400 https://reprap.org/forum/read.php?1,56579,56640#msg-56640 https://reprap.org/forum/read.php?1,56579,56640#msg-56640
Yes, heat is an issue. We'll have adapters for mounting on existing filament drives and we're releasing a new stepper filament drive to work with the compact hot-end.

Thanks,
Rick]]> Rick Pollack General Tue, 24 Aug 2010 17:53:13 -0400 https://reprap.org/forum/read.php?1,56579,56595#msg-56595 https://reprap.org/forum/read.php?1,56579,56595#msg-56595 I have seen the very short PEEK "compact" insulator on your website. Do you not get a problem with the top getting too hot with it being so short?

Chris]]> nophead General Tue, 24 Aug 2010 12:32:03 -0400 https://reprap.org/forum/read.php?1,56579,56593#msg-56593 https://reprap.org/forum/read.php?1,56579,56593#msg-56593
We have PEEK insulators at MakerGear and we also have ready made hot-ends, if that is what you are looking for. Feel free to contact me with any questions (email, makergear google group, or IRC).

Mike, I've been experimenting with glass for a while
PLA Glasstruder
ABS Glasstruder
and though I like glass, I'm not ready to trade it for PEEK!!

Thanks,
Rick]]> Rick Pollack General Tue, 24 Aug 2010 12:04:03 -0400 https://reprap.org/forum/read.php?1,56579,56589#msg-56589 https://reprap.org/forum/read.php?1,56579,56589#msg-56589
Gary Riding Wrote:
-------------------------------------------------------
> Thank brian... do you know where i could buy one
> of these from ? or do you have one which you could
> sell me ? ready made ?
>
> Gary]]> reifsnyderb General Tue, 24 Aug 2010 11:07:12 -0400 https://reprap.org/forum/read.php?1,56579,56588#msg-56588 https://reprap.org/forum/read.php?1,56579,56588#msg-56588
Mike]]> rocket_scientist General Tue, 24 Aug 2010 10:51:32 -0400 https://reprap.org/forum/read.php?1,56579,56587#msg-56587 https://reprap.org/forum/read.php?1,56579,56587#msg-56587
Gary]]> Gary Riding General Tue, 24 Aug 2010 10:43:22 -0400 https://reprap.org/forum/read.php?1,56579,56584#msg-56584 https://reprap.org/forum/read.php?1,56579,56584#msg-56584
The problem is most likely not the barrels. It is the PTFE thermal barriers. They have a tendency to get soft and cause the system to fail. It is not uncommon for people, using PTFE only thermal barriers, to put something around them in order to prevent them from failing. (i.e. a hose clamp) A PEEK or hybrid thermal barrier does not have this problem as PTFE is not used to support the heater barrel and nozzle.

Regards,

Brian]]> reifsnyderb General Tue, 24 Aug 2010 10:35:57 -0400 https://reprap.org/forum/read.php?1,56579,56582#msg-56582 https://reprap.org/forum/read.php?1,56579,56582#msg-56582 www.makergear.com] I hear nothing but good on their parts.

(tu)]]> Prober General Tue, 24 Aug 2010 10:17:58 -0400 https://reprap.org/forum/read.php?1,56579,56579#msg-56579 https://reprap.org/forum/read.php?1,56579,56579#msg-56579
if anyone know of anybody or if you sell such a barrel, then please get in touch.. also i am looking for another way of heating the barrel without nichrome heater wire... would be willing to buy a ready made barrell for my mendel if possiable


Gary]]> Gary Riding General Tue, 24 Aug 2010 10:03:55 -0400