Exploding Creeper Valentine Box

by mortinus, published

Exploding Creeper Valentine Box by mortinus Jan 6, 2013


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What an adorable creeper valentine box! With a hidden surprise for your loved one. Awwwww. My friends, I bring to you the true essence of a Creeper Valentine. Although exploding might be too strong of a word, trust me when I say give this to your valentine then take a step back...if only to avoid the punches!

This is a really fun project I've been working on that involves quite a few very fun physical principles like redirecting the motion of pull via hoops!
I enjoy designing around true life objects, and this one happens to be the very traditional "Confetti Popper." We're all familiar with them; you point it in the air or at someone, and pull the little cord. BOOM! Confetti. This box suspends a confetti popper face up and routes the rip-cord so that when the lid opens it actuates the popper :)

Now imagine if you cut the head off of a creeper, put heart shaped gems in its' eyes, scooped its' brain out and rigged one to explode when your valentine opens it expecting a nice shiny surprise...in true creeper fashion.
You're welcome....or not.
Please be careful..and don't rig anything else to pop or explode or whatever. That isn't nice!


I've made a few vast improvements to the joinery designs I am using.
I realize that the printers tolerance has a huge impact on the fit of pegs and holes, and printed scale has a LOT to do with how it turns out in the end.

I am taking special care to now have my calipers near me when designing things, and making sure to avoid scaling things unless absolutely necessary!
This box assembles with 3 degree tapered shafts into square holes.

The required materials for use are:
x1 Traditional Party Confetti Popper
x1 Sucker. I mean Valentine.

Open the top of the box. Insert confetti popper barrel UP, string DOWN.
Route the string through the loops from bottom, to side, to top of the lid..make it taught, and either tie a knot if you're really good or use a piece of tape like the rest of us. Making sure the string has a lot of tension on it is key! You want the lid to be opened quickly with no slack possible so the effect is immediate. Please use caution when giving this to someone, and try to prevent any harm if someone holds this to their eyeball or something as they open it.

I cannot be held responsible for your new single status, any bruises or reflexionary actions!
But I take all credit for laughter, smiles, hugs, good days, fun times, ;)

The confetti popper measures around 2.25" in height, so the overall "cage" required to pull this off are around 3". This takes quite a long time on my makerbot with ABS at minimal feedrates even with only 10% infill.
Due to the requirement for the confetti popper to be suspended within the container by an arm, I recommend minimal support structure...Also might want to try PLA and accelerated mode to cut down on the printing time.

I can design a supportless version of this but it would have 1 more peg/hole...and 1 more object to print. I think support structure is a great thing, and as it's only a small amount required I think we should all get a little more comfortable using it.

Notes / Updates
Printed the cube and I believe that not everyone would feel comfortable routing the string with a pair oft weezers so I've doubled the size of the routing loops.

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I would like to print a valentines box like this for my 9 year old step son's school valentines box competition (without the exploding thingy, which cool, not school appropriate.) This would be his valentines box for kids to put valentines into, not take out of. (well, he'd take them out later). Large enough for a kid's card / candy insertion and to stor probably 20 cards or so for his entire 4th grade class? Do you have something like this or know where I could find a model similar to this to print? He loves Minecraft and would beat all the other kids with something like this. heh. It's Tuesday 2/14, so, I'd need to start printing soon to have it done for this weekend so he can paint it, etc.

I do not have anything specifically for valentine reception, but would recommend this model for what you ask. Just scaled up as large as you can print, reducing the infill to save material. The lid could still be opened and valentines inserted. At the large scale it could also be painted.

Haha, This can only end badly. What happens if someone tries to look in the box as they're opening it?

I agree! In my lengthy description I advise to please try and save the person from harm if it is pointed at their eyes. This is definitely a prank with risk, but like all of them, it's up to you to be safe. Tackle the person or slap it out of their hands put your hand over their face. Something!

Goodness it must have been quite a late night! Thanks for the catch, sorry about that! File uploaded.

Can you please post the lid in .stl format? I don't have solidworks or know how to convert sldprt.

Thank you! My boy is going to love this.