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Discussion in 'Shiny Things' started by dorkpunch, Jan 8, 2013.
Guess what came in the mail today?
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?
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.
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).
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.
So I have another opportunity to do a beta test of another printer... Trying to figure out how to come up with some $$$ and figure out what I would use a second printer for... Stay tuned!
adv funding campaign... in return for printing services at a very very reasonable rate. i'm in.
Here's the flag mount I showed the cad files of earlier.
Anyone having heater bed issues?
Every now and then the heater bed will shut off during a print.
I get the feeling it's the MOSFET. I've checked wires and even adapted a fan to blow on the circuits but it's only temporarily worked. The heater bed FET is heatsinked but not sure if it's adequate enough.
I have new MOSFETs to replace but figure I could reach out and see if there are any other options before I tear down and unsolder the components.
What controller board are you using? My RUMBA seems to have a funky issue where if you don't hit the reset button on the board the first time you plug it in, it will freeze / skip during the first print after about 30 minutes. If you hit reset, it will go all day long without missing a beat. No issues with heaters shutting off though.
Anyone running a mendelmax with OS X? I have a few questions about OSX specific drivers and setup.
Basically, it's a clip that holds a handheld shower head. The round things slides into the bracket where you would normally hang the head, and the clip holds the head lower and at a better angle, at least for me.
Our cleaning lady has broken the original- twice, but I can't repair it this time. It seems to be made of ABS or another very hard (and un-gluable) plastic. Epoxy won't stick and CA just peels off.
I've spent days trying to find a replacement, and finally thought someone may have printed one. Problem is, I don't own a printer (yet) so thought I would ask if anyone would be willing to crank one out for a reasonable fee?
I could probably print you one if you aren't in too big a hurry... and if you're okay with green PLA.
Been messing around some more, tried a few things out with ABS and decided to experiment with PLA a bit. This means I've got LOTS of missprints from my experiments! Here's a few.
Students just finished their cars, which means printing about 300 wheels, at 80 a batch. Its SPOSED to look like this:
'sept when you experiment with hairspray instead of the ABS goop and the prints don't stick, and you leave for 2 hrs to a class in a different room. Then it looks like this.
Next up was a larger print with ABS and the hairspray stick 'em. Looks not half bad...
Until you look a little closer.
The bottom warped really bad because I forgot the fan was on... Joy's of using ABS. Then I tried pulling it off while it was still warm and the bottom stuck so hard to the glass that it "bubbled" when I pulled it off. :huh
This one is just icky. Switched back to PLA and was experimenting with temps, speeds, etc. Finally discovered a partially plugged hot end and solved this little problem.
This is new for me: tried printing a hollow "shell". Came out okay, and with a few tweaks I'll be doing this for all of the students cars with a twist.
Here's what the inside looks like:
And some students cars printing. Notice the .05 infill density honeycomb pattern.
2 cars down, 73 more to go. :eek1
3D Printer related spam post.
I launched the site. First round of products are 3D Printed.
It is in the linked post above, but here is the video of the printers in action.
<iframe frameborder="0" scrolling="no" width="640" height="360" src="http://api.smugmug.com/services/embed/2964000330_6h98nWM?width=640&height=360&albumId=31760848&albumKey=ZtjPtD"></iframe>
We have a MakerBot 2 and MakerBot 2X we are testing. The 2 has a single extruder and runs PLA. The 2X has two extruders and can run ABS.
The 2 has run well and other than being a bitch to remove support material, is pretty handy and very simple to use.
The 2X stopped extruding from the right extruder within the first few layers of the first part I started. I went through all the troublshooting procedures and opened a case with their support group via email. Got the first email response three business days after my first email asking some questions, and have had two other emails as well. So I started up the machine November 26th and as of Dec 12 it's still only running from one extruder.
Finished last trimester's Tech and Design car prints. Little over 50 of them, and there are 10 or 15 more that had some manifold issues so they wouldnt print properly. If the students come back in and fix them, we'll get them a print as well.
Works in progress. Gluing wheels.
3 classes worth.
and 5th hour's.
Here's a few of the more interesting designs. This one was named the "Hippy Bus" by its owner.
Love the lightning pattern on the side of the one, and the truck on the far right I didn't think was going to print because he hollowed it out. Actually turned out pretty decent! May start letting them do that a bit more!
The convertible is pretty cool, the interior adds a lot of detail to the car.
In another month or so I should have some Tech 2 projects done- they usually are a little bigger and more detailed. Harder to get them to work the way the students envision, but thats part of the purpose of the printer- to let them create something and see if it actually WORKS!
Still impressed every time I see the designs these kids come up with. Most of them are only 12 years old, and these were the simplified versions of their designs. The full size models had waaayyyy more details. Some days (okay, most days), I really love my job.
Porsched has an STL model of a Cayman on their website, available for download.
3D printed Titanium bicycle frame
that is really cool. I also like seeing what they come up with.