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Printing on The PartDaddy

Posted: Sun Jul 12, 2015 4:37 pm
by PartDaddy
I'm printing tonight. https://video.nest.com/live/partdaddy I'm on my phone and can't copy the url for some reason. "vase b" on repable.com

Re: Printing on The PartDaddy

Posted: Sun Jul 12, 2015 8:57 pm
by BenTheRighteous
http://seemecnc.com/pages/dropcams

This is all I see... :(

I'd love to check it out though!

DropCams – SeeMeCNC - Chromium_265.png

Re: Printing on The PartDaddy

Posted: Sun Jul 12, 2015 9:52 pm
by Mac The Knife
When Nest bought out Dropcam, things kinda got wonky.

Re: Printing on The PartDaddy

Posted: Sun Jul 12, 2015 10:16 pm
by Tincho85
Did I missed it? or streaming it's not working?

Re: Printing on The PartDaddy

Posted: Mon Jul 13, 2015 2:24 pm
by PartDaddy

Re: Printing on The PartDaddy

Posted: Tue Jul 14, 2015 6:21 pm
by PartDaddy
What should I print on the PartDaddy printer? https://video.nest.com/live/partdaddy

I'm really interested in printing large objects people can interact with or objects taller than 6 foot.

Some limitations of the present design:
- retractions don't exist, so stringing is a problem right now
- overhangs, no support, must have 45 degree angle
- PLA only
- I've found 2mm layer heights and 5mm extrusion widths work best
- about 1000mm diameter X 2500mm tall max

Ideas and links to the STL model or post them here.

Re: Printing on The PartDaddy

Posted: Tue Jul 14, 2015 6:59 pm
by JFettig
how about a 10x scale model of a compressor wheel that I drew?

Re: Printing on The PartDaddy

Posted: Wed Jul 15, 2015 3:51 pm
by PartDaddy
JFettig wrote:how about a 10x scale model of a compressor wheel that I drew?


Ok, this is really cool. I opened it in MeshMixer and sized it to 1000mm diameter. I'll probably print it Friday night or if the current print fails.

Re: Printing on The PartDaddy

Posted: Wed Jul 15, 2015 3:54 pm
by BenTheRighteous

Re: Printing on The PartDaddy

Posted: Wed Jul 15, 2015 4:42 pm
by JFettig
Awesome, keep us updated! I'd love to see a picture of it full 1M diameter!

Re: Printing on The PartDaddy

Posted: Wed Jul 15, 2015 4:46 pm
by PartDaddy
Printing an Egg Chair for the next 40 hours... http://repables.com/r/594#

https://video.nest.com/live/partdaddy

Re: Printing on The PartDaddy

Posted: Wed Jul 15, 2015 4:55 pm
by BenTheRighteous
Wow, why is the print head humongous? Do you guys feed it pellets instead of filament or something?

Re: Printing on The PartDaddy

Posted: Wed Jul 15, 2015 5:33 pm
by PartDaddy
Here's a cross section drawing. Not too fancy but shows how I did it. Retraction is not designed, however, my plan is to lift the screw and physically shut off the nozzle tip with a wiper.

partdaddy pellet extruder cross section
partdaddy pellet extruder cross section



A circle of NEMA 17 colorant injectors will eventually circle the extruder loaded with colorant resin pellets in process colors. I'll probably won't do this on this medium size printer...

Files here: https://github.com/seemecnc/Partdaddy

The project is a prototype. There is not a BOM. All the files on github are what I machined the aluminum parts from. The upper joining plate holes have a minor miss alignment (just a note if anyone is going to use the files).

Re: Printing on The PartDaddy

Posted: Wed Jul 15, 2015 5:43 pm
by PartDaddy
Print fail. The open bottom with cross hatching just doesn't work very well. A solid bottom is better for thick perimeter.

Tweaking program. Restart.

Re: Printing on The PartDaddy

Posted: Wed Jul 15, 2015 11:09 pm
by BenTheRighteous
This printer is "medium size" in your book? Do you have a larger one in the works?

Re: Printing on The PartDaddy

Posted: Fri Jul 17, 2015 12:12 pm
by PartDaddy
The egg chair print is going better, but messed up just below the seat last night. I noticed Matterslice didn't z lift for some moves. I have 10mm z lift programmed and very short travel for z lift. Seems to happen with "avoid crossing boundries" checked. Other than that, large prints are working great using Matterslice. Might get messy again tonight when it tries to complete the top of the egg.

Hmm, semi trailer size maybe... hydraulics will actually make it easier to set up. ;)

Re: Printing on The PartDaddy

Posted: Fri Jul 17, 2015 5:53 pm
by PartDaddy
Had to pause the Egg Chair print (see the live video feed). Storms are passing through right now and this evening. I'll resume tomorrow or Monday.

Re: Printing on The PartDaddy

Posted: Fri Jul 17, 2015 6:03 pm
by bot
I wonder how long a bank of 12v car/truck batteries could keep the printer going for?