The "PartDaddy" Large Format 3D Printer

Such as Laser cutters (Must use the phrase 'sharks with frickin lazors' once per thread)
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Re: The "PartDaddy" Large Format 3D Printer

Postby Glacian22 » Mon Oct 13, 2014 3:17 pm

What makes the rigidity so low? And with the PLA pellets extruder, can you do retraction?

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Re: The "PartDaddy" Large Format 3D Printer

Postby PartDaddy » Tue Oct 14, 2014 5:19 pm

The towers are really tall (machine is 17 feet tall), and the platform is about 65 pounds. The weakest link right now are the plastic rollers on the t-slot and the heavy extruder assembly.

I did not finish the extruder completely. Reversing the screw can cause a jam from my experience with it so far. I wanted to add an air cylinder or motor to lift the screw up about 3/8". The idea should create a vacuum or at least remove pressure. I think Oly had an idea to slide in a thin sheet metal shut off, which led me to yet another idea of a center post to plug the nozzle from the inside.

Overall, the machine is doing what it was designed to do. I want to try a small nozzle, like 3mm sometime, or even a tiny 1.75mm dia nozzle :D .
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Blackpoint Engineering is SeeMeCNC
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Re: The "PartDaddy" Large Format 3D Printer

Postby gui7vaz » Thu Jan 28, 2016 2:42 pm

Nice Job!!!!
I'm wondering, how did you hooked up the step motor driver wires in rambo?
Can you show us a closer picture?
Thank you in advance!!

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