Open Source Gotchas, Tool Head Upgrades, Hot End Woes and More!!

This Episodes Questions:

Hello Guy, JJ, and Nathan,
I was wondering if you could discuss the idea that the 3d printing "hobby" has come full circle from the early days of the Stratasys machines to the current crop of machines from BambuLab, Creality, Qidi, Flashforge and the myriad other manufacturers that aren't making "Open Source" machines. Also what are you thoughts about keeping some parts closed while open sourcing other parts, i.e. BambuLab Slicer VS their firmware. I know Guy couldn't give a crap, as long as it prints, but what effect do you think this "partial Open Source-ing" will have on the hobby long term? I mean no one cares that their microwave isn't open source, so does it even matter?
Thanks for the podcast and your opinions.
-John D Strand

Howdy howdy! First off, love the show, thank you for the awesome content. So I'm semi new to printing, semi tech literate, very mechanically inclined, just as a back story haha. Anyway I have an e3v2, been upgrading it a bit and I am at the inevitable crossroads of hotends. I believe y'all have touched on some but I haven't seen a complete episode on them ( or at least titled as such, sorry still catching up on all of them ).  So here are my parameters, e3v2, converted to direct drive, cr touch ( with no reservations on moving it ) and I would like to print hot materials. Sorry for the long winded letter but any help or perspectives would be great! Thank you in advance.
Justin

Hi guys,
Thanks for such a great podcast!My 2 part question is this, I have an old Qidi Xplus that I modded with the icarus 2 mod from Printables. I absolutely love it. However, recently, I needed to change the heartbreak. I am using a Phaetus Dragon standard flow with an Orbitor 2 extruder.
   I somehow managed to damage the 4 tiny posts that go into the dragon.  I have ordered replacements from numerous places online like Ali Express and Triangle Labs. For some weird reason, I have been having issues with receiving these after ordering multiple times. Other items arrive, just not these stupid posts. So I was wondering if you knew of a hack I could use to replace them with?  Such a strange design in my opinion.   Any advice is appreciated.  I now understand why Nathan threw one of these Qidi printers in the trash.
If you have time to answer this, I would also like to put a better main board in this machine. Any suggestions? 
Cheers and thank you in advance!
Jesse from Burbank,CA.