It appears to be calibrated in 2Nm steps so I am not sure that it could be set to precisely 3.5Nm. Is it the case that at 4Nm the hotend is damaged, or is it more forgiving than that?
Does anyone have any suggestions of which type of wrench to buy?
I might go to the local garage tomorrow and see if they can help me, but from what I have read the hot-end may need to be taken apart and cleaned occasionally so I will probably need my own tool eventually.
Thanks - In fact I will get a torque wrench later in the week.
One question with the hotend untightened there is a gap between the plastic and the heater block. The one with the washer which is not flat. Currently this is about 1,5mm. When I tighten the nut will this be reduced to zero or will there still be a gap?
So I am asking whether when I tighten the nut whether the gap between the square block with the heater element/NTC in AND the white round plastic part will be totally closed except of course just the width of the washer. At the moment it is 1.5mm. This will give me assurance that I have tightened the nut enough. This is the gap that has the washer that is not flat. If you could post a picture of a correctly assembled hotend from the side that would also show this.
I am not sure how to upload a picture to this forum.
Thank you, I have using the torque wrench now tightened the hot end to 3.5Nm.
Apologies for the many questions: At this stage the hotend is not installed. The oval aluminium bracket at this torque setting is slightly loose and can be moved around, is this normal for the hotend? Or do I need to tighten the nut further?
