Trick Laser hot end progress

[Broose]

hot-ends.com is out of stock

Did you check the site at noon on Friday? That's when they take orders. I was able to order one a week ago Friday and it was shipped last week to me.

[Eaglezsoar]

hot-ends.com is out of stock

Did you check the site at noon on Friday? That's when they take orders. I was able to order one a week ago Friday and it was shipped last week to me.

Broose, did your hotend from hotends.com have 4 slots and a little shorter than what you expected?

There was a discussion at http://forum.seemecnc.com/viewtopic.php ... 561#p14561 we are trying to figure out what is going on because the
standard calls for 5 cooling slots. Just wondering what you received.

[Broose]

Broose, did your hotend from hotends.com have 4 slots and a little shorter than what you expected?

There was a discussion at http://forum.seemecnc.com/viewtopic.php ... 561#p14561 we are trying to figure out what is going on because the
standard calls for 5 cooling slots. Just wondering what you received.

The hot end shipped and I think it has already arrived at my office but I haven't been there for a few days. I will be back tomorrow and can check the dimensions as soon as I get there.

[Flateric]

I think the really slippery liner is one of the primary reasons Jheads are so very good at PLA. So slipery in fact that during the swelling of the PLA it is the slippery surface directing the swell as well. PLA's lower melting point is both a blessing and a curse because of this attribute.

I find all metal hotends, and I personally own every one of them that I am aware of, really shine when it comes to high temp plastics like Polycarb (265-285c), high impact crystal clear ABS (265c), nylon 618/645(varying temps but all well above PLA) and of course "regular" ABS. But one thing all of these plastics do not do that PLA does is swell and become grippy and rubbery like PLA. You can generally just up the temps to clear jams which is the exact opposite of clearing jams with pla.

A PLA jam can be such a major PITA to clear in comparison to the others. PLA's swell, rubber and high friction states at certain points make it an almost requirement to have a slippery liner for protection against jams.

I have printed PLA with an all metal hotend, but your acceptable temp range is painfully slim and combining this with retraction and extrusion pumping it becomes smaller. PLA does not discriminated about what metals it will stick to. It however doesn't stick at all to some slippery linears.

As for my favorite all metal hotends, rather than naming specific ones, I can say that my favorites are generally the ones with the smallest melt zones. I am also experimenting with tips that have a small reservor of liquided as close to the very tip as possible with a tight tolerance around the retracting filament to assist the hydrolic action of the retractions.