One of the few things I need now is a thermistor. Any recommendations for places in Australia to get a thermistor suitable for use on an extruder? I'm hoping for something that'll handle 250 Deg C or more, and is in a radial lead (ie: NOT an axial lead) package. Something like this: [australia.rs-online.com] perhaps? FWIW: I'm thinking of getting a few (I plan on making a number of extruders). https://reprap.org/forum/read.php?129,55673,55673#msg-55673 Tue, 06 Oct 2026 08:24:24 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?129,55673,70875#msg-70875 https://reprap.org/forum/read.php?129,55673,70875#msg-70875 mlagana Australia, Melbourne RUG Tue, 18 Jan 2011 03:20:37 -0500 https://reprap.org/forum/read.php?129,55673,70674#msg-70674 https://reprap.org/forum/read.php?129,55673,70674#msg-70674
I brought some from [cgi.ebay.co.uk] they have it on sale for £1.17 per meter.
Hope that helps.

Auzze]]> Auzze Australia, Melbourne RUG Sun, 16 Jan 2011 07:20:05 -0500 https://reprap.org/forum/read.php?129,55673,70660#msg-70660 https://reprap.org/forum/read.php?129,55673,70660#msg-70660
[australia.rs-online.com]

Still having trouble finding .2mm ptfe sleeving, or any sleeving that small for that matter. found some .2mm wire meant for outdoors and sun so need to strip and test the sleeving at 240C i kinda doubt it will work.]]> mlagana Australia, Melbourne RUG Sun, 16 Jan 2011 03:23:56 -0500 https://reprap.org/forum/read.php?129,55673,68052#msg-68052 https://reprap.org/forum/read.php?129,55673,68052#msg-68052
its only $3.70 aust. so i might pick up 3-4 and see how they go.

Supposed to be in stock. so shouldnt take long to get even at this time of year.

Thermistor]]> scorpia Australia, Melbourne RUG Thu, 09 Dec 2010 22:00:33 -0500 https://reprap.org/forum/read.php?129,55673,67953#msg-67953 https://reprap.org/forum/read.php?129,55673,67953#msg-67953
Something like [au.element14.com] or [au.element14.com] should be fine, but at about $67 ex for 100m, it's not worth it for such a small job.

Also make sure that you get tubing of the right inner diameter. No use if you find your wire is too thick. Not going to happen on the thermistors, but if you plan to use it for other pieces (eg: resistor block leads), then you need to factor it in.

FWIW: Sometimes it's cheaper to buy some PTFE coated wire (eg: certain types of wirewrap wire), strip the insulation off and use that. Also useful in other ways.]]> Cefiar Australia, Melbourne RUG Wed, 08 Dec 2010 21:00:14 -0500 https://reprap.org/forum/read.php?129,55673,67932#msg-67932 https://reprap.org/forum/read.php?129,55673,67932#msg-67932
Just wondering where we can buy some of this PTFE tubing???

Auzze]]> Auzze Australia, Melbourne RUG Wed, 08 Dec 2010 14:30:58 -0500 https://reprap.org/forum/read.php?129,55673,67931#msg-67931 https://reprap.org/forum/read.php?129,55673,67931#msg-67931
when i built my first extruder and heated bed it was all about massive amounts of kapton tape.. now i'm using heaterblock with resistor, (i use old computer powersupply wires after sawing off the plastic molex i use the female little connector as a crimp to join to the resistor), printing on blue scotch tape ($10 from mitre10 works drastically better than printing on kapton), ptfe sleeves would totally free my machine of kapton tape :)]]> mlagana Australia, Melbourne RUG Wed, 08 Dec 2010 14:24:31 -0500 https://reprap.org/forum/read.php?129,55673,67884#msg-67884 https://reprap.org/forum/read.php?129,55673,67884#msg-67884
Note: As Kapton tape heats up, the tape expands, lifting the tape off the object. Many of the glues used on Kapton tape also stop working while at high temp, losing their bond. Expansion happens with PFTE sleeving, but as it's a complete sleeve and not joined by glue, it doesn't fall off.]]> Cefiar Australia, Melbourne RUG Wed, 08 Dec 2010 01:59:15 -0500 https://reprap.org/forum/read.php?129,55673,67877#msg-67877 https://reprap.org/forum/read.php?129,55673,67877#msg-67877 mlagana Australia, Melbourne RUG Tue, 07 Dec 2010 23:47:38 -0500 https://reprap.org/forum/read.php?129,55673,67867#msg-67867 https://reprap.org/forum/read.php?129,55673,67867#msg-67867
Do not buy the B57540 series, as they are just too small to work with.

The ones I have are B57560 series, which are slightly larger still, but works fine.

FWIW:
B57540 = 0.8mm (dia) x 1.4mm, 0.15mm wires, 250 Deg C rating
B57550 = 1.3mm (dia) x 2.2mm, 0.2mm wires, 300 Deg C rating
B57560 = 2.3mm (dia) x 4.1mm, 0.3mm wires, 300 Deg C rating

Note: I suggest you consider using PTFE sleeving over the wires. Unfortunately you'll have to buy a roll of it, so make sure you get stuff with the appropriate Inside Diameter.]]> Cefiar Australia, Melbourne RUG Tue, 07 Dec 2010 22:05:23 -0500 https://reprap.org/forum/read.php?129,55673,67796#msg-67796 https://reprap.org/forum/read.php?129,55673,67796#msg-67796 [in.rsdelivers.com]

but i would still like to test one before dropping $300]]> mlagana Australia, Melbourne RUG Tue, 07 Dec 2010 02:42:42 -0500 https://reprap.org/forum/read.php?129,55673,67794#msg-67794 https://reprap.org/forum/read.php?129,55673,67794#msg-67794

Thank you for your request for quote.

PLEASE NOTE OUR MINIMUM ORDER IS A$300.00+ per line for these type of parts.

We are a bulk wholesaler of electronics if your after a small quantity of parts - you could try

Farnell
[au.farnell.com]
RS
[www.rsaustralia.com]
WES Components.
[www.wescomponents.com]
Altronics
[www.altronics.com.au]

If you would like a quote.

1, Please confirm the quantity you need.
1, Please confirm you can take a higher qty.
2, Please confirm the FULL part number, package and Manufacturer.
3, Please confirm your contact information. FAX # ?
4, Please tell us what your company is doing, MFG, Repairer, R&D ?

PLEASE NOTE OUR MINIMUM ORDER IS A$300.00+ per line for these type of parts.

Thank you
www.semico.com.au]]> mlagana Australia, Melbourne RUG Tue, 07 Dec 2010 02:21:41 -0500 https://reprap.org/forum/read.php?129,55673,67792#msg-67792 https://reprap.org/forum/read.php?129,55673,67792#msg-67792
I can see why you attached them to another order, they dont come cheap from element14.]]> Capo Australia, Melbourne RUG Tue, 07 Dec 2010 02:13:03 -0500 https://reprap.org/forum/read.php?129,55673,67772#msg-67772 https://reprap.org/forum/read.php?129,55673,67772#msg-67772
[au.element14.com]

Main reason for choice (apart from larger body size compared to the old ones) is the climatic category: 55/300/56

This means it should be able to stand temperatures from -55 to +300 Deg C for up to 56 days. Should prove quite suitable for an extruder.]]> Cefiar Australia, Melbourne RUG Mon, 06 Dec 2010 20:24:44 -0500 https://reprap.org/forum/read.php?129,55673,67720#msg-67720 https://reprap.org/forum/read.php?129,55673,67720#msg-67720
Best of luck with the hot end testing!]]> Capo Australia, Melbourne RUG Mon, 06 Dec 2010 09:46:04 -0500 https://reprap.org/forum/read.php?129,55673,67686#msg-67686 https://reprap.org/forum/read.php?129,55673,67686#msg-67686
I ended up getting two from Makergear, mainly cos the kit came with the PTFE sleeving and I was ordering other stuff from them.

The thermistors are 2.1mm in diameter, which makes it a LOT easier to physically mount them. The leads are thicker which makes wiring a lot easier. Ultimachine also carry the same thermistors, though they don't have any PTFE sleeving.

Element14 carries the same thermistors, but they charge about 3 times the price for just the thermistor. The advantage is however that they don't charge shipping.

Next time I'm on the Element14 site (read: tomorrow) I'll look up their part number for the same thermistor and post it here.

Note: Yes, now I appear to have a working hot end. I'm currently testing it to ensure it works fine before it gets anywhere near plastic filament.]]> Cefiar Australia, Melbourne RUG Mon, 06 Dec 2010 02:17:07 -0500 https://reprap.org/forum/read.php?129,55673,67682#msg-67682 https://reprap.org/forum/read.php?129,55673,67682#msg-67682
Where did you end up getting your thermistors from? I did have some on order from mendel-parts, but gave up waiting after a month and cancelled my order.]]> Capo Australia, Melbourne RUG Mon, 06 Dec 2010 01:07:53 -0500 https://reprap.org/forum/read.php?129,55673,55673#msg-55673 https://reprap.org/forum/read.php?129,55673,55673#msg-55673
Any recommendations for places in Australia to get a thermistor suitable for use on an extruder?

I'm hoping for something that'll handle 250 Deg C or more, and is in a radial lead (ie: NOT an axial lead) package. Something like this: [australia.rs-online.com] perhaps?

FWIW: I'm thinking of getting a few (I plan on making a number of extruders).]]> Cefiar Australia, Melbourne RUG Mon, 16 Aug 2010 06:16:44 -0400