Learn to 3D print!

I’ve given up on 2D printers. 3D is the future!

print ninja

print ninja

Every single paper printer I have ever owned has been a constant source of pain and expense [example]. My experience with 3D printers thus far has been slightly better, but a magnitude cooler. The payoff for designing and printing your own real thing out of plastic is a real joy. That’s why some people call me obsessed with these 3D printers, and also why I feel the need to share!

Learn to print in 3D! We are running our SketchUp class again with 2 new dates: 4/17 and 5/1. Both Sundays and both from 10am – 3pm. [avoiding religion jokes here] These dates are separate; it’s not a 2-part class.

Grab a ticket today. $25 for either date:
SketchUp 4/17 SketchUp 5/1

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FDM2000 progress

Adam, Peejay, Justin, and I met Saturday to see just how fµ¢%ed our old enterprise Stratasys FDM 2000 is.

toolhead

Toolhead

To catchup: we got a Stratasys FDM2000 from a garage sale for a song and it came with lots of unknowns. It has sat in our hackerspace and moved with us for almost 2 years.

These things are in good order:

  • All 3 axes
  • Two extruder steppers and gearboxes
  • Two extruder heaters and the envelope heater
  • Onboard controllers
  • Lights
  • Model liquefier hot end

Problems that we found:

  • Support liquefier blew out. Need to tear down and fix.
  • Can’t connect via software. May be related to Adam’s serial adapter.

Great news! We have tons of consumables! Spools and spools of ABS, support material, some cool looking elastomer and foam for the build platform.

 

The white whale of 3D printing

Late last night I succeeded at something that I have been obsessing over for almost a year: printing City Hall.

City Hall

Thar she blows!

Last year, when I really started to get into printing on Hive76′s Makerbot 3D–PO, someone suggested printing Philadelphia’s grand City Hall. It took me many months of casual attempts before I was able to clean up the model I downloaded form Google’s 3D warehouse for printing. Once I had something that wasn’t full of holes, I dived in. After just a few attempts, I successfully printed City Hall in blue PLA and posted the whole thing to Thingiverse.

Shitty Hall

Shitty Hall

Since then I have been trying to replicate my succes in other materials. Some combination of the continuously–breaking Makerbot, the black PLA and my fledgling skills produced a monumental pile of failure I like to call Shitty Hall. The extruder would jam, the heated build platform would cool down, the X or Y axis would lose steps; everything went wrong repeatedly. I had enough failed prints that I clamped and welded them together to form the tallest shitty print ever printed at Hive76. After tweaking, greasing, cleaning, and learning just exactly every way that a Cupcake CNC can break, I gave it a shot in ABS. Once the first few critical layers went down well and the material was feeding properly from above, I relaxed. Two and a half hours later, I had my prize: a 3D printed City Hall in white ABS. Here’s a picture of the whole City Hall family, including Jordan’s successful first attempt at 1.5x. Now I need to print it again!

City Halls

City Halls

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SketchUp class wrap up

Sorry for the delay, but on February 26th we had a successful class based on using SketchUp for 3D printing.

Shuriken

Shuriken

We had a few members and 2 strangers show up for the class. They learned how to make simple forms in SketchUp and design around the size limitations of the makerbot. The designed and printed objects included a Shuriken pictured here, a Barbie toilet, a rook, a laptop lid webcam mount, and a decorative unicorn. Class members: if you’re reading this, I highly recommend you upload your designs to Thingiverse so the rest of the world can print them!

Thanks for learning at Hive76!

 

 
made with SketchUp, printed at Hive76

Made with SketchUp, printed at Hive76

We are offering a class on how to use Google’s free 3D program SketchUp. SketchUp is not the most powerful CAD program out there, but its intuitive design and price make it a great start if you are curious about conjuring solid objects out of plastic and bytes.

This class will run Saturday, February 2/26 from 10am to 3pm at Hive76

You will learn:

  • How to make simple stuff in SketchUp
  • How not to ruin a model by poking holes in it, what “manifold” means.
  • The basic process of FDM 3D printing
  • The limitations of the Makerbot

And most importantly, you get to print and take home a thing!

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I saw this design and decided to make my own. You can make your own from thingiverse.Phonecone

Here’s a video of it from robot_trouble:

 

The Prusa Mendel build is finally complete! Here’s a Stanford Bunny:

Prusa Mendel Bunny Print by jmil

PLA bushing sliding on precision ground 8 mm rods is actually quite smooth movement. I don’t think it can go as fast as the original Sells Mendel (which was ball bearings sliding over the rods), but it’s only half the printed parts and the z-axis is much smoother motion too. I will try oiling or greasing the bushings to try to get smoother and faster motion without losing steps. So definitely some tradeoffs but overall a super awesome bot. The Prusa is also fully parametric and entirely made from OpenSCAD. All sources are available on github FTW.

As this is the first bot I built that I actually own, I named this awesometown after my HS science teacher, Mr. Sloate, who really got me into Biology and now, robotics for Biology.

What will we print next?

 

Adam K. works on getting axis movement on the RepRap Huxley

Back in 2009, we ordered our first 3D printer, the MakerBot Cupcake. Since then, we’ve become pros at fixing, modifying, and mostly breaking it. We’ve even created new, awesome products for it which have been adopted by a good portion of the 3D printing community, and even sold by MakerBot themselves.

Shortly after completing our Makerbot, once-member fynflood decided to start building the RepRap Mendel, which is the 2nd generation of the RepRap Project’s 3D printer. He started by printing all of the pieces on our MakerBot, which took over 20 hours to complete, and gathered all of the required hardware with help from many of our members. A printer was born out of Hive76, and life was good. A few months later, there was a post on the reprap aggregation pipe about a new iteration of the reprap, called the Mendel Mini (now the RepRap Huxley), which has a similar build volume to the MakerBot, but can be assembled for under half the cost. Fynflood set out to print the parts on his Mendel, while I gathered all the required hardware and electronics. After a few months break over the summer, and a few more months being busy with the Holidays, the Huxley is now complete! Our printer’s baby made a baby!

At this very moment, we have 2 MakerBots and the Huxley all going at the same time at the space! If any more printers show up, we’ll probably have to start giving away USB Typewriters just to make room! Really, it’s an exciting time to be printing at Hive76, so if you have any interest in learning how 3D printers work, or even building your own, come by for open house on Wednesdays and check out all the awesome things we’re making!

Hit the jump for a few videos and images from the first few prints!

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