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by Shorin
Tue Feb 20, 2018 7:18 pm
Forum: Improvements (Archive)
Topic: Firmware development help
Replies: 3
Views: 431

Re: Firmware development help

Thanks. I actually was able to figure that part out too. I think my main challenges right now are figuring out the power controller. It's a stepper motor that I believe I can control with extruder motor controller 1 or something. Trouble is I have a stepper with 6 wires and not 4. I've read a little...
by Shorin
Wed Jan 31, 2018 12:54 pm
Forum: Improvements (Archive)
Topic: Firmware development help
Replies: 3
Views: 431

Re: Firmware development help

Haven't heard from anyone, and I tried contacting a developer but to no avail. Can anybody help?
by Shorin
Wed Jan 24, 2018 12:51 pm
Forum: Improvements (Archive)
Topic: Firmware development help
Replies: 3
Views: 431

Firmware development help

Hi, Anybody here familiar with the firmware source? I've dived into it myself and there's a few things that I could use pointers on. Having somebody else point out the design is oftentimes quicker than figuring it out yourself. * How are commands enqueued? It looks like it uses get_command and proce...
by Shorin
Mon Jan 22, 2018 10:30 pm
Forum: Improvements (Archive)
Topic: 3D Metal Printing
Replies: 11
Views: 973

Re: 3D Metal Printing

In drawing out the molten pool design I realized that the metal coming out the tip will most likely cool before it hits the piece. BUT using an arc to make a molten pool on the surface to ensure penetration would help melt it again. While doing this i realized this idea is almost EXACTLY like TIG we...
by Shorin
Mon Jan 22, 2018 10:07 pm
Forum: Improvements (Archive)
Topic: 3D Metal Printing
Replies: 11
Views: 973

Re: 3D Metal Printing

Low power printing mode eliminates bonding I already figured out the bonding issue. If you use low enough power the weld will not penetrate into the metal worksheet, but it will melt to itself. So basically I print layer 0 at low power and it will just pop off. Layers beyond that should be welded a...
by Shorin
Thu Jan 18, 2018 12:30 pm
Forum: Improvements (Archive)
Topic: 3D Metal Printing
Replies: 11
Views: 973

Re: 3D Metal Printing

Heh, perhaps i can reprint the 3D printer in metal once I get an "imperfect" version working that doesn't do that well with heat.
by Shorin
Thu Jan 18, 2018 12:29 pm
Forum: Improvements (Archive)
Topic: 3D Metal Printing
Replies: 11
Views: 973

Re: 3D Metal Printing

All very good points. So heat is my primary enemy here. I shall have to engineer cooling systems and shielding to mitigate this. I'm also more worried about parts of the printer that conduct heat well. That will lead to melting of the printer itself! But since most of the printer is plastic I don't ...
by Shorin
Wed Jan 17, 2018 6:53 pm
Forum: Improvements (Archive)
Topic: 3D Metal Printing
Replies: 11
Views: 973

Re: 3D Metal Printing

Another question for you all does anybody know why others haven't further pursued welding approaches to 3D metal printing? I've seen that some folks have tried it and there's even one company that has released a product. I note that everybody seems to be producing rough and low resolution parts usin...
by Shorin
Wed Jan 17, 2018 6:45 pm
Forum: Improvements (Archive)
Topic: 3D Metal Printing
Replies: 11
Views: 973

Re: 3D Metal Printing

Steel melts at roughly 2500 degrees C I think. This heat is mostly absorbed into the base plate that the welds are done to, hopefully. I could do cooling or something if needed. Pidna sensing OHH... so it detects the resonance of the steel sheet? So technically another sheet of metal placed ontop of...
by Shorin
Wed Jan 17, 2018 5:52 pm
Forum: Improvements (Archive)
Topic: 3D Metal Printing
Replies: 11
Views: 973

3D Metal Printing

It's time for the next phase of my 3D metal printer project. I've been prototyping methods for 3D printing metal by hand for the past couple months and have successfully printed by hand using 38 gage stainless steel wire. In order to do this I had to design (print) a spool gun that could handle such...

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