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Monday, July 16, 2012

Sneak peek.

Here is a bit of a sneak peek into a few things in the works. I feel like I've only been producing hot ends and no design work has been done for the last few months. So hopefully I can get back into things from now.



 
 
If you couldn't guess what it was, it's an alternative mounting system for the hot end. One thing that has surprised me so far is that I haven't had a criticism about the hot end so far. I don't believe its perfect, in fact I know its not. So it would be great to hear some peer review on the design. Anyway, I thought the mounting system had areas where it could be improved.

It also draws much of its inspiration from the J-head plate mount. But unfortunately they are incompatible, as the J-head uses a 12mm diameter slot, and the PEEK rod I'm using is 12mm dia! I would have liked to have had them compatible though...

Nonetheless, plan is to test the mount first to make sure the hot end doesn't over heat without the heatsink/fender washer. I'm inclined to leave the shoulder on the PEEK rod to give the option of both mounts or even going back to the original v6 style mount.

No details as yet on my production pricing, but we'll see how it all goes first in my testing for now. Plan is to simply swap to the new slot mount, though, a combination of old and new could be possible. We'll see.




3 comments:

  1. I really like the reassurance of the fender washer, for both heat dissipation and structural integrity.

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  2. Yep I think the washer does have its place in the hot end. As you mentioned, heat dissipation is the main reason I think it should stay.

    I'm just not sure about it as a mount for the hot end. Particularly as the 30mm spacing has to be so loosely toleranced due to differences in the printed extruders spacing of the holes and the angle at which the holes are.

    If it goes down the hybrid fender washer+mount path, then I would be inclined to modify the Greg's extruder to have the 30mm spacing inline with the other mounting holes rather than offset on an angle.

    Hope the hot end is treating you well btw :)

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    Replies
    1. Hey there
      I just started a 3d printer build and, used your hotend. I am only a begginer and i finall had all up and running last night. I was extruding and printing all night. So happy.
      As for the mounting i did not have a gregs extruder with mounting holes 30mm apart. So i improvised and used some 4mm thick aluminum, mounting holes at 50mm apart as on the bearing carriage and mounted at an angle to the rest of the extruder. If you would like me to take a happy snap for ya let me know.

      Cheers
      Dylan

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