1 Topic by dubbsd

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Topic: what is the torque value for MK8 Nozzle

I have always just snugged the nozzle down (estimated Guess) at to tightness.
If I use a torque wrench how many inch pounds should I use.
The block is aluminum.
I am guessing 42 inch pounds does that sound about wright.

Thanks
Dale

Ultimaker S3.

2 Reply by Tin Falcon

  • Tin Falcon
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Re: what is the torque value for MK8 Nozzle

probably a good guess . some charts suggest more like 60 for a brass bolt but bolts are not hollow.

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3 Reply by dubbsd

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Re: what is the torque value for MK8 Nozzle

Thanks Tin

Ultimaker S3.

4 Reply by Tin Falcon

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Re: what is the torque value for MK8 Nozzle

An aside here if it is ok . years ago i was machining air fittings for model engines. I learned the hard way it was easier to cut the threads before drilling . If i drilled first the tread ripped off in the die .

Just do not use my older brothers method . Turn it down until it breaks then back of a 1/4 turn. He was actualy quite a mechanic 20 years on motorcycles then packaging machines for 20 plus years.

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5 Reply by dubbsd

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Re: what is the torque value for MK8 Nozzle

I have about 30 years as a machinist but do not have equipment any more and gave my handbooks to someone starting out.
I have snapped a couple of  nozzles and had to use an easyout. So I thaught I would see if I guessed wright on the torque.

Thanks Again

Ultimaker S3.

6 Reply by Tin Falcon

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Re: what is the torque value for MK8 Nozzle

Soo you tried the the tighten till it breaks then back off 1/4 turn method?  I just googled torque values there are lot of charts on line you  need to watch unit as some are in in /lbs some in foot lbs and some in newton/meters

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura