Micro-Aligning Helping Tool for Threaded Heat-break Barrel-based (the cheap chinese variety),

3D Printing
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#3dprinter #dualhotend Micro-Aligning Helping Tool for Threaded Heat-break Barrel-based #HotEnds (the cheap chinese variety), saving you some good money you’d have to pay for a set-screw based #Chimera clone. This should be especially interesting for the existing #3Dprinter which already has this classic #hotend .

This is a first experimental design for a #3dprinted tool that will help with locking a #hotend 's nozzle at a certain height by using a jam nut against the heatsink, as I’ve previously explained in another post.

This tool does two jobs, one is the wrench part that is used to fasten the jam nut and the other side pushes apart, via the spring, the heater-block with the threaded barrel on one side and the heatsink on the other side, achieving what is crucial for an error-free locking: that is having the threaded barrel always keep contact and rest on the lower side of the threads inside the heatsink. This makes sure that when the jam-nut is fastened the barrel has no room to be pulled out of the heatsink (which the jam-nut tries to do), because the threaded barrel is already at it’s lowest possible position inside the threaded hole of the heatsink.

I can come back with explanations if requested.

Here’s a pic of what I have in mind. Comments/suggestions are welcomed. Also interested volunteers as I am far away from home for a few months so nowhere near my stuff.

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I don’t want to offense, but it should be way easier to adjust the height via the mounting at the top of the hotend. There it is cool, plenty of room, bigger things to get grip on, etc…

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No offense taken. What design do you have in mind? This one works for all designs out there… doesn’t rely on plastic parts that can be affected by heat in time and other factors… I personally haven’t found an easy way other than buying a Chimera, but that means X carriage redesign again.

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And another important thing to keep in mind: this is an action that shouldn’t be done too often. Having a complex #dualhotend system mount will be irrelevant after setup. This should be maybe checked and re-done after some time. Having it done by an offline tool takes the complexity away from daily operation.