Getting ready to move to 1.75mm and I would like to use a hot

3D Printing
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1

Getting ready to move to 1.75mm and I would like to use a hot end that I can changed the nozzle if desired. For what I can see this looks to be something the Metal hot ends can do but it looks like people love them or hate them due to jamming.
From what I can workout the jamming is normally due to poor cooling of the cold end.
Any experience with these people can share using ABS or Bridge that I would like to try at some point ?

2

Both ABS and Bridge have fairly low requirement as far as the hotend goes and usually don’t have jamming issues the same way PLA has. For Bridge, you should be using an all-metal hotend as Nylon can require somewhat higher temperatures.

3

Agreed with Thomas, all metals are where you want to be for all materials. True, PLA requires much more attention, but it is capable of throwing a great line of plastic if tuned right.

4

Thanks, I am really after peoples experience with metal hot ends as you can find plenty complaining about them and people with no problems mostly say nothing.

5

I’m still really happy with my E3Dv6 (and for that matter, I was never really unhappy with the v4 I used before that). If you haven’t seen it yet, here’s my full opinion on the v6: http://youtu.be/iggESG52v1Q
There are certainly other good hotends out there, and this is simply the one that I use and can recommend. Even the more expensive PEEK- and PTFE-based hotends never worked as well or as reliably as the metal ones for me.

6

Neither of my v5s have never treated me wrong. Season them with some veggy oil for pla and run the hell out of them.

7

I have a hotend that has a PEEK plastic separating 2 metal pieces. It screws together. The problem with replacing the nozzle for such a design is that the parts of the hotend that you do not want to loosen will try to loosen up when you are not wanting them to when you remove the nozzle. I imagine it is probably the same way with any all-metal hotend (with no PEEK plastic) that screws together that does not have a pin or clip to prevent parts from turning.

If any of you are designing a hotend with screw together parts, please consider drilling a hole through it and inserting a pin to prevent it from turning. That or use a clip or screw that anchors it in place instead of turning when you do not want it to.