search

KRALYN / PositronV3

A upside-down, fast, portable, and compact 3D printer
Creative Commons Attribution 4.0 International
2.08k stars 233 forks source link

Split brass hotend insert #8

Open MSKeith opened 2 years ago

MSKeith commented 2 years ago

This splits the brass insert so that the "melting chamber" has a radius turn vs a 90 milled connection between the inlet and outlet holes.

KRALYN commented 2 years ago

Hello, I think this is a bit premature. I tried a design that is two pieces clamp together. But the tolerance has to be perfect in order for anything not to leak. I think if you want. Make this piece on your own and experiment with it and see if it works. If it works, I’ll add it in. Thank you.

On Fri, May 27, 2022 at 12:50 AM Keith Hill @.***> wrote:

This splits the brass insert so that the "melting chamber" has a radius turn vs a 90 milled connection between the inlet and outlet holes.

You can view, comment on, or merge this pull request online at:

https://github.com/KRALYN/PositronV3/pull/8 Commit Summary

File Changes

(1 file https://github.com/KRALYN/PositronV3/pull/8/files)

Patch Links:

— Reply to this email directly, view it on GitHub https://github.com/KRALYN/PositronV3/pull/8, or unsubscribe https://github.com/notifications/unsubscribe-auth/AP6KUFNQMFLUJ4QHGBCZ4RLVMBIADANCNFSM5XDDGAYA . You are receiving this because you are subscribed to this thread.Message ID: @.***>

SuperLYC421 commented 2 years ago

I think maybe a 2mm ball end mill bit can make a smooth connection in the brass insert here are pics of my idea and the long neck ball end mill https://imgur.com/gallery/J0DPor0 and I found similar mill on Amazon but it is very expensive https://www.amazon.com/Tungsten-Carbide-Milling-Engraving-R0-4-8-D4-50-2T/dp/B07VFR8L2Z/ref=sr_1_3?crid=1UOW7KV0SOCN9&keywords=ball%2Bend%2Bmill%2B2mm%2Blong%2Bneck&qid=1654872097&sprefix=ball%2Bend%2Bmill%2B2mm%2Blong%2Bneck%2Caps%2C374&sr=8-3&th=1

KRALYN commented 2 years ago

If anyone got this to work, please create a new pull request with evidence if it working. because I think the work and complexity is too much, and the flow rate might not even improve by that much.