New style hot end?

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thosj
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Joined: Mon Mar 26, 2012 8:22 am
Location: Greenville, WI USA

New style hot end?

Post by thosj »

I bought one of the new type hot ends. How are we getting the resistors "tight" in the holes with no split to screw together now? Just wrapping with foil and sort of jamming them in there? What's the idea with the ~3/22" holes 90 deg. to the resistor hole?

I looked around for some info on the new style hot end, but can't find anything. Am I missing it somewhere?
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cambo3d
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Re: New style hot end?

Post by cambo3d »

most of use are using aluminum tin foil to make up for the gap, to get it snug in the hole then, high temp rtv so it doesn't come out.

the two holes that are facing the same direction as the resistor holes are your thermistor holes,

the other hole, supposedly is some sort of relief hole.
thosj
Prints-a-lot
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Joined: Mon Mar 26, 2012 8:22 am
Location: Greenville, WI USA

Re: New style hot end?

Post by thosj »

I have ONE hole between and parallel to the resistor holes for the thermistor, so I get that. Not sure about the 3/32" holes perpendicular to, and into, the resistor holes. Somebody took the time to put them there so I thought there might be some reason for them I can't see.
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MorbidSlowBurn
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Re: New style hot end?

Post by MorbidSlowBurn »

I used the hole at the resistor.
I recently installed a small fan that is aimed at the PEEK section of the extruder. Since then my thermistor reading dropped significantly. Placing a thermocouple on the nozzle shows a higher temp. When I get a chance I need to order a new thermistor and relocate it between the resistors, I think it will be less susceptible to the fan there. Until then I need to offset my slicer settings to compensate for the difference. Not sure if the location between the resistors is better but it can't be worse.
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