Introduction: 3D-printed Jack O' Lantern
This Instructable is a part of the 3D Creation Systems Jack o' Lantern challenge. You can enter by posting your own design to the contest. It can follow these instructions or be made entirely differently in the CAD program of your choice. Just make something spooky!
OK, let's make a 3D jack o' lantern
Step 1: Make a Ball
There it is. A sphere!
Step 2: Squeeze It
Non-uniform scale of .8 in y axis
Step 3: Copy It
Make a copy of the ball and move it over
Step 4: Copy the Copies
Copy that pair and rotate the new pair 36 degrees
Step 5: Repeat!
Make 3 more pairs of copies and you'll have the body of the pumpkin
Step 6: Make a Curved Path
Draw a curved line
Step 7: Draw a Circle
Draw a circle at the endpoint of the path
Step 8: Extend the Circle
Rotate the circle to be perpendicular to the path and create the stem by following the path with the circle
Step 9: Insert Stem
Move the stem into place on the body of the pumpkin. You will likely need to change the scale of it
Step 10: Combine
Connect all of the shapes together
Step 11: Shell the Pumpkin
Hollow out the pumpkin with the shell tool
Step 12: Cut a Hole in the Bottom
Create a cylinder and subtract that from the main shape. You now have a hollow pumpkin with a space for a LED candle to be inserted.
Step 13: Cut a Face
Make your own face for the jack o' lantern by subtracting different shapes. When you're happy with the results you can export an STL and print it!

Participated in the
Jack o' Lantern Challenge
21 Comments
9 years ago
I dot have a 3d printer :( could anyone print and send me one for a small fee?
9 years ago on Introduction
Reply 9 years ago on Introduction
Here's what that looks like
10 years ago on Introduction
Question for those of us without idevices (sad face) what are the units for which you use "3" as the measurement, and what is the diameter of the cylinder? (preferably in mm)
Reply 10 years ago on Introduction
it's mm. No need for an apple product, though. 123D Design is free on PC as well. There's also the web-based version.
http://www.123dapp.com/design
Reply 10 years ago on Introduction
I'm running Fedora 19 on my PC, and it doesn't seem to like chrome. Also, there's no down loadable version for Linux.
-no web gl in chrome
-no sound from chrome
-crashes when I run chrome
If you know how I can still use 123ddesign, though, it would be much appreciated.
-gums up the machine when chrome is working.
Reply 10 years ago on Introduction
Maybe another browser then? Not sure, I don't have a Linux machine to test with.
10 years ago
Print out some food
Reply 10 years ago on Introduction
OK, but it will be really crunchy
Reply 10 years ago on Introduction
suggestions:
-eggs (minus the non-shell part)
-Doritos (plastic to begin with)
-diet taco shells (you wouldn't actually eat them, so zero calories)
try one!
10 years ago on Introduction
I love it. And I have a suggestion: if you gave it three little legs, say 8mm high, the tea-light 'flame' would sit much more centrally in the pumpkin.
Alternatively you might devise a collar that holds it in a similar position.
Nick
Reply 10 years ago on Introduction
Oh, good idea
10 years ago
This is awesome i actually want to go in the contest but when I saw yours I just can't be in the same contest
Reply 10 years ago on Introduction
Well I can't win and you can enter just by modifying the file. Do it!
10 years ago on Introduction
What kind of printer did you use? I ask because typical (inexpensive) extrusion type won't print a design like this without some support.
Reply 10 years ago on Introduction
This was printed with a SLS printer. So it had the support of the non-sintered powder around it.
10 years ago on Introduction
Have 3D printers come down to under a million dollars?
Reply 10 years ago on Introduction
You can get a FDM 3D printer for $200. I haven't used one of those, however.
Reply 10 years ago on Introduction
Yes! I'm expecting my FlashForge (under £800 - UK) to arrive any day now :-)
10 years ago on Introduction
It's actually a Halloween pumpkin.