MK3S - where can I find a ptfe "collar"?

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redherring9

(@redherring9)

Active Member

MK3S - where can I find a ptfe "collar"?

OK, I am still very new at this. In fact I am posting this in "assembly and first prints" because I have not yet been successful with a print (beyond the single layer Z calibration sheet - and a couple of XYZ calibration cubes)

However, boosted by these successes I tried to print something I thought would be useful and easy - a case. Things didn't go well... and I realised that the filament just wasn't moving. I tried a cold pull, and ended up snapping the filament just microns above the ptfe tube. I tried a 1.25mm rod but no luck even when at 250+ degrees.

Knowing I had a spare, I thought no worries, I can dismantle the extruder and replace the tube. This went reasonably easily.

UNTIL, I tried to take the old PTFE tube out of the hotend. At this point the BLACK LOCKING COLLAR broke (five pieces - ooops)

Where on earth can I get a new one? are they even called "locking collars" ?? thanks

Napsal : 08/04/2019 1:41 am

JoanTabb

(@joantabb)

Veteran Member Moderator

Re: MK3S - where can I find a ptfe "collar"?

Hi, where are you located?

if the USA, try
https://www.printedsolid.com/collections/e3d/products/e3d-bowden-collet

if the UK,
https://e3d-online.com/embedded-bowden-coupling-for-metal

if elsewhere pick your nearest reseller,
https://e3d-online.com/resellers

if you have plenty of time on your hands try,
https://www.aliexpress.com/item/Embedded-Bowden-Coupling-for-Metal-for-E3D-heatsink-bowden-tube-collet-for-E3D-hotend-HeatSink-heater/32891208745.html?spm=2114.search0104.3.9.5593d8a768DD8m&ws_ab_test=searchweb0_0,searchweb201602_3_10065_10130_10068_10547_319_317_10548_10696_10192_10190_453_10084_454_10083_10618_10307_10820_10301_10821_10303_537_536_10059_10884_10887_321_322_10103,searchweb201603_6,ppcSwitch_0&algo_expid=4d9531a2-d5d3-4369-be81-c4bac08acb9a-1&algo_pvid=4d9531a2-d5d3-4369-be81-c4bac08acb9a
,

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Napsal : 08/04/2019 2:18 am

vintagepc

(@vintagepc)

Member

Re: MK3S - where can I find a ptfe "collar"?

Or, you can print one!
https://www.thingiverse.com/thing:1276626

Napsal : 08/04/2019 3:28 am

redherring9

(@redherring9)

Active Member

Topic starter answered:

Re: MK3S - where can I find a ptfe "collar"?

Thanks Joan
I hadn't realised the collar was called a COLLET.
And as a Brit based in the US now, I appreciate the suggestions 🙂
ordered and will be here in time for the weekend