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Old 09-12-2013, 05:33 PM   #271
Big Bird 928
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Quote:
Originally Posted by dorkpunch View Post
Finished up the sign and installed it today. Decided that even though my practice prints were a little rough, they were more than useable. Cleaned them up a bit with an acetone fuming,









Slapped some paint on the disks,



and gathered up all the parts.



Tried gluing in a clear piece of plastic to prevent kids from sticking a pencil in there and turning it from the outside... We'll see how long that lasts.



Drill a hole in a perfectly good door,



Put the bar in the front disk and slide it through,



and screw the cover on over top.



On the back:



Put the knob on,



and screw it's cover on.



There you go!





Guess we'll see if it works or not.
Seeing as that is a diabled bathroom, can they reach it from a wheel chair?
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Didn't take me long to sort out the derpapotomous tactic again.
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Old 09-12-2013, 06:07 PM   #272
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Its for the special ed students and the teachers on this end of the building... The students that use it always have an aid with them. Its more for us teachers so they don't unlock the door and walk in on us. Its just a one-holer.
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Old 09-27-2013, 06:13 AM   #273
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http://www.wired.com/design/2013/09/...nside-the-box/
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Old 09-27-2013, 09:15 AM   #274
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http://www.tomsguide.com/us/metal-3d...ews-17602.html
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Old 09-28-2013, 07:19 AM   #275
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I'm still working on my Morgan build. I'm going with the threadless ball screw design for the Z drive, and just now printing up the SAE updated parts.

The new hotness is this Wally printer.

http://www.3ders.org/articles/201309...rst-moves.html

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Old 10-03-2013, 05:54 PM   #276
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So I have a couple of days off, and think maybe I can catch up on a few things around the house. Morning started off great, then after lunch the dryer suddenly sounds like it sucked up one of the cats and is slowly ripping its fur off.

Broke.



Nothing serious though, the pulley on the belt tensioner finally wore through and split in half. The belt was just running on the rod and rubbing on part of the pulley making a heck of a racket.





Called around, no one local had one in stock so it would have been Monday before I could fix it AND the pulley would've cost $24!

Hey, I've got a 3D printer!!! Took about 15 minutes to draw it up and about an hour to print.







Installed with the belt not routed quite right.





Well, its in and it's drying. We'll see how long it last!
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Old 10-03-2013, 05:59 PM   #277
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Compressed air shot and a vacuum would do that motor wonders
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Old 10-03-2013, 06:03 PM   #278
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Yeah, it's going to come back apart (not hard, only 4 screws) so I can put the new heating element in. When I do that I'll clean it out good and proper and see how the pulley is wearing.
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Old 10-03-2013, 06:15 PM   #279
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I've been busy with a bunch of other things lately so I haven't had the time to fart around with the printer.

I designed and built this a little while ago:





I'm sure someone can figure out what it is.
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Old 10-03-2013, 06:21 PM   #280
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Cover for your twist grip throttle. Cool!
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Old 10-03-2013, 09:01 PM   #281
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Guess what came in the mail today?
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Old 10-05-2013, 03:22 AM   #282
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I haven't read every post in this thread, but I'm wondering how folks clean up show surfaces to make them more pleasing to the eye. Files? Sandpaper?
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Old 10-05-2013, 08:29 AM   #283
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For ABS you can "acetone fume", I posted some info about this a few pages back. The porta potty covers from the last page were fumed- smooths things out and gives them a nice glossy look.
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Old 10-05-2013, 11:01 AM   #284
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Originally Posted by PunkinHead View Post
I haven't read every post in this thread, but I'm wondering how folks clean up show surfaces to make them more pleasing to the eye. Files? Sandpaper?
1. Make sure the polygons on the stl file are small enough.
2. Use thin layers.
3. Solvent dip: we use Weld-On 3. Very nasty stuff.
4. Paint with solvent. Also a health hazard without proper ventilation.
5. Spray with high build primer, then sand. That's how we usually prep parts for painting.

The commercial systems have much cleaner surfaces, but cost a lot more. The maker-grade systems are about where the industry was in the early 1990's. This is one of the Cube printers ($1,200) sold by Staples versus a Stratasys uPrint ($13,900).
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garandman screwed with this post 10-05-2013 at 11:27 AM
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Old 10-05-2013, 03:31 PM   #285
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Tinker with the configurations in slic3r (or whichever gcode generator you use).

It's more of a trial and error situation but that's one way to get a good part and a great part.
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