Lego EV3 3D Printer 2.0
Intro: Lego EV3 3D Printer 2.0
Hi! My name's William and this is my first time on instructable.com
My first project is this Lego Mindstorms 3D printer. I've already built a prototype before this version, but the results were well...mediocre. This is the 2.0 version. It's more precise, more efficient and the printed objects are better than in the previous version, although far from perfection.
STEP 1: Step 1: Building the X and Y Axis
You'll need:
- 2 large (16x32) lego plates
- About 30 Lego gear racks (4x1)
- Long and thin Lego bricks
I think that the image explains pretty well how to build the X and Y axis so I hope you won't need any further information for this step.
STEP 2: Step 2: the Y Axis Moving Platform
You'll need:
1 square Lego plate (16x16)
Several long Lego Technic bricks with holes (Number depends on the size)
Some Lego pins
2 large Lego gears
2 small Lego gears
STEP 3: Step 3: the X Axis Crane
You'll need:
Lots of Lego blocks
A 16x12 Lego plate (or a few smaller plates put together)
Those crane Lego parts (Found in the old "Lego Mars Mission" sets or some Lego train sets)
Some Lego Technic parts with holes
STEP 4: Step 4: the X Axis Crane Motor
Similar to the Y axis platform motor, the X axis motor needs to be wider, in order to stabilize the crane.
Once built, you'll only need to attach the X motor beneath the crane.
STEP 5: Step 5: the Z Axis Motor
You'll need:
1 Large EV3 motor
some twine
2 Lego tyres
2 Medium Lego gears
When finished, just attach the motor to the cranes' front arms.
STEP 6: Step 6: the Extruder
NOTE: attache the extruder to the Z axis motor ONLY after step 7
You'll need:
Some Lego Technic parts with holes
A glue gun (with glue stick)
A medium EV3 motor
some twine
A large Lego tyre
A small Lego wheel hub
NOTE: attache the extruder to the Z axis motor ONLY after step 7
STEP 7: Step 7: Balancing the Crane
Try to find a counterweight for the back arms of your crane in order to balance the crane. Try to find a balance between the heavy glue gun extruder and the counterweight.
STEP 8: Step 8: the Brick
Attach the EV3 brick to the bottom of the crane platform.
STEP 9: Step 9:
Your printer should look something like this now
STEP 10: Step 10: Programming the Printer
The image shows a program that I used to print a square.
Depending on the glue gun you used, the extruders' motors' speed will vary form program to program.
22 Comments
AnnaR9 8 years ago
Anna
AnnaR9 8 years ago
Hi,
We're looking to hire someone who owns a LEGO 3D printer for an event. We would pay for services, travel and accommodation. This would be between October 15-18.
If you would be interested, please get in touch at anna.rust@socialbakers.com.
Thank you!
Anna
W1ll14m 8 years ago
AnnaR9 8 years ago
We aren't based in America, the company is European and the event is in Greece. We would cover your travel expenses and the fees for using your printer.
If this is something you would be interested in, please in touch at anna.rust@socialbakers.com, so I can forward you on to my manager.
Thank you,
Anna
Hitechcomputergeek. 8 years ago
Hey, I found this: https://www.instructables.com/id/Precision-Hot-Glu...
The part where they modify the handle to make it a pen shape doesn't seem helpful for this, but do you think that you could modify the tip the way they did to make your 3D printer more accurate?
donald.lv.14 9 years ago
How did you make the glue come out?
W1ll14m 9 years ago
With the extruder. The motor-powered wheel pushes the glue-stick into the gun, which fuses the stick and lets it come out in a liquid form.
donald.lv.14 9 years ago
Yeah, I tried that but its not working. Can you give me some tips on how to get the glue out?
W1ll14m 9 years ago
Ah! I see waht you're saying. I had that problem too. The problem might be that your glue stick fits too tightly between the two wheels; in this case the motor-powered wheel spins and spins without pushing the glue down.
I went through several extruder designs until I found one that works (In the picture). If that still doesn't help, you should consider using another glue stick (since they come in many shapes) or maybe even another glue gun.
I hope my advice was helpful.
Eric_Hill 9 years ago
Pretty much exactly what I made 2 years ago https://www.instructables.com/id/DIY-Glow-3D-Printer/
W1ll14m 9 years ago
Indeed, and I must admit your version was more practcal than mine, although the construction seems a bit complicated.
I hope that that it's ok for you you that I published my version. Also, since I'm new to "instructables", I couldn't possibly know that another person built another Lego printer before me.
symcclendon 9 years ago
W1ll14m 9 years ago
Yep
woofle628 9 years ago
there should be a heated pad to take the object off. Amazing project though
sapostel 9 years ago
Awesome idea hope you keep perfecting it
W1ll14m 9 years ago
True, I hope to make a better version within the next two months. Thanks for your support :)
Jeph Diel 9 years ago
W1ll14m 9 years ago
That would be very clever. Haven't thought of it. Thank you very much!
carlr3 9 years ago
dont surrender this concept has future
Fission_Chips 9 years ago
This is really cool! You could buy a real extruder for a little cash and then have a completely real 3D Printer! Nice work, though.