Tungsten Carbide Nozzle, torque/temp?  

RE: Tungsten Carbide Nozzle, torque/temp?

@karl-herbert

I use less but that should work also.  

RE: Tungsten Carbide Nozzle, torque/temp?

@cwbullet

Certainly also works with less torque. I have always set the value 2.5 to 3 Nm since the first use and never had problems with leaking nozzles or a defective thread on the nozzle or the heating block.

RE: Tungsten Carbide Nozzle, torque/temp?

@karl-herbert

@cwbullet

has there been a scenario or can you think of one, where it would only work on the lower torque1.5nm but cause nozzle leaks on the 2.1-3Nm range, in your opinion? 

RE: Tungsten Carbide Nozzle, torque/temp?

@muo

I have not had leaks with 1.3 to 1.5.  

RE: Tungsten Carbide Nozzle, torque/temp?

@muo

I would start with 1.5Nm and see how it behaves. Then you can still tighten it.
You can use a small torque wrench like this one:

1-5Nm

1-6Nm

RE: Tungsten Carbide Nozzle, torque/temp?

@karl-herbert

ya i have some thing like this

https://www.amazon.com/Wheeler-Accurizing-Measurement-Gunsmithing-Maintenance/dp/B0012AXR4S/ref=sr_1_16?dchild=1&keywords=adjustable+torque+wrench&qid=1606227032&sr=8-16

RE: Tungsten Carbide Nozzle, torque/temp?

Posted by: @muo

@karl-herbert

ya i have some thing like this

https://www.amazon.com/Wheeler-Accurizing-Measurement-Gunsmithing-Maintenance/dp/B0012AXR4S/ref=sr_1_16?dchild=1&keywords=adjustable+torque+wrench&qid=1606227032&sr=8-16

I will have to give that a try.  Good find!

RE: Tungsten Carbide Nozzle, torque/temp?

While we are at it - I have also tested some things and finally built something of my own:

Nozzlechange Tool | PrusaPrinters

Of course any torque wrench in the range of 1 - 3 Nm can be used.

RE: Tungsten Carbide Nozzle, torque/temp?

@karl-herbert

When I get me new workshop and am better able to print peek, I will give this file a try.  

RE: Tungsten Carbide Nozzle, torque/temp?

@karl-herbert

@cwbullet

got this message from Spool3d for there tungsten nozzle when i asked what the right torque to use is

"Thank you for contacting us.  For filament temperatures 250 and below we find 1.8 Nm works.  If going hotter, we suggest 2.5Nm."

now i am starting to think combo of filament used torque/temp  used can cause or prevent leak 

example: if i print with PETG mostly i prob should not go above the 1.8Nm torque or if i Print with PETG And use 2.5 torque which is ment for higher temp filament it will cause a leak 

what filament you guys print with your TCs mostly?

RE: Tungsten Carbide Nozzle, torque/temp?

@muo

PETG and ABS with Carbon Fiber.  

RE: Tungsten Carbide Nozzle, torque/temp?

@muo

I print a lot of Carbon Nylon, Carbon PEEK (360 degrees C. nozzle temp.), ASA, ABS, Carbon PC....
Nozzle tightening torque for the TC with nickel-plated copper heating block is, as I mentioned before, 2.5 - 3Nm.

RE: Tungsten Carbide Nozzle, torque/temp?

@cwbullet

I have been using the PEEK insert for the counterholder for about 1 1/2 years. If you don't heat it over 250 degrees C. it will last almost forever. I also reinforced the cheeks with metal pins made of tempered steel.

RE: Tungsten Carbide Nozzle, torque/temp?

@cwbullet

do you also use the copper heat block with your TC nozzle, if not which one do you use and where do you get it from?

fyi:
i used the low torque still seem to leak.

I also asked spool 3d "so does this mean if I print a lot with PETG 240c, and i tighten nozzle at 2.5Nm it would cause issues maby nozzle leaks?"
they responded "No, if you tighten the nozzle more, less/no leaks should occur."

RE: Tungsten Carbide Nozzle, torque/temp?

@muo

I use the e3D Copper Heatblock I purchased from Amazon.  No leaks.  I use the wrench I got from Aliexpress.  They well a 2.5 and 1.8 NM nozzle wrench.  I used them with an adaptor and socket if I need to do a different nozzle size.  

I recently started using Z-Catch with my V6 hotends and prefer it.  

RE: Tungsten Carbide Nozzle, torque/temp?

@cwbullet

what do you think of this btw

https://www.amazon.com/All-Metal-heatbreak-precision-compatible-3D/dp/B07BZMB6QM/ref=pd_bxgy_img_2/147-0992742-7369234?_encoding=UTF8&pd_rd_i=B07BZMB6QM&pd_rd_r=91c10038-f775-4413-b2ad-5443199db909&pd_rd_w=AJvkb&pd_rd_wg=39B4x&pf_rd_p=f325d01c-4658-4593-be83-3e12ca663f0e&pf_rd_r=MVSW7GQDS2WA7Q6H51KZ&psc=1&refRID=MVSW7GQDS2WA7Q6H51KZ

and you said you prefer the Z-Catch i am assuming you just do it by feel for larger torque amount like 2.5Nm + and not for the small ones like 1.2-1.8Nm?

RE: Tungsten Carbide Nozzle, torque/temp?

Posted by: @muo

[...] what do you think of this btw

I normally don't post my thoughts on clone hardware replacements, but holy smokes!

First, the company's description: "It is my own heatbreak design. 2x better thermal barrier performance vs E3D heatbreak. It is not a clone, geometry is different - see second photo for details. I reworked geometry and improved tolerances and features."

If I'm replacing the Prusa heatbreak because of geometry problems, I'm not sure I want to jump on board with some smaller outfit's idea of "better".

Second, the reviews mention burrs and using a countersink bit to correct them.

After 2 disasters clone bi-metal hotends, I'm done using clone parts in critical parts of my printers. I'm sticking with E3D or well-known quality brands. Saving $2-10 is simply not worth the time it takes to repeatedly tear my printers down.

RE: Tungsten Carbide Nozzle, torque/temp?

I always like to compare this with cars. It's like buying a $300,000 Ferarri and then fitting retreaded Trabi tires. Of course you can ride it, but the question is only how long and how good.
You can save money anywhere, but the least you should do is do it at the hotend, because it is essential for a trouble-free flow and a perfect result.
The clones are attractively priced, which is why they are bought so often.

but to each his own.. 👍 

RE: Tungsten Carbide Nozzle, torque/temp?

Posted by: @muo

@cwbullet

what do you think of this btw

https://www.amazon.com/All-Metal-heatbreak-precision-compatible-3D/dp/B07BZMB6QM/ref=pd_bxgy_img_2/147-0992742-7369234?_encoding=UTF8&pd_rd_i=B07BZMB6QM&pd_rd_r=91c10038-f775-4413-b2ad-5443199db909&pd_rd_w=AJvkb&pd_rd_wg=39B4x&pf_rd_p=f325d01c-4658-4593-be83-3e12ca663f0e&pf_rd_r=MVSW7GQDS2WA7Q6H51KZ&psc=1&refRID=MVSW7GQDS2WA7Q6H51KZ

and you said you prefer the Z-Catch i am assuming you just do it by feel for larger torque amount like 2.5Nm + and not for the small ones like 1.2-1.8Nm?

I like the Z Catch because it seems to also hold the hotend and prevent the heatblock from spinning.  

I have two of those heatbreaks and they work.  I can't comment on them being superior.  They definitely work.  I prefer the price on Polsi's Heatbreaks.