bug 1
Description
Instructions
I obviously also plan to make it look a little better than a box on legs! :)
Update 3/2/12 - changed the tools used to make this from lightwave modeler to openscad. This is my 1st attempt at using openscad.
parts:
MHSS1104 - APEM Slide Switches Microminiature
DCM-382 - VIBRATING MINI-MOTOR - from here:
allelectronics.com
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The 2nd version I made is kind of a hack to see if splitting the top and printing them on their sides would make the legs stronger. It worked. I
âm going to make the top again from scratch this weekend because I donât like how the split affected the rest of the part. Iâm also going to beef up the pegs/holes used to fit the pieces together. Oh yeah Iâll finally get the switches Iâve ordered by this weekend so Iâll actually wire u
p a working bug! Then Iâll see if battery support is needed.
It looks like the electronics housing part (motor, battery, and wires) can just be glued onto onto the end of a cut-off toothbrush. Having a plastic housing sure would beat the tape and hot glue I use now.
I think the problem with putting everything on top of a cut-off tooth brush is that it becomes very top heavy and falls over easily. Lowering the weight makes it much more stable. The other choice is to make it wider. I didn't do this because the kids have a track these bugs run on and it's pretty narrow.
Awesome. I've been working on a printable vibrobot design off-and-on for a while but never came up with anything I was happy with.
Printing it in 2 pieces opens up a lot of possibilities.
I uploaded a 2nd version which splits the top in half so it can be printed with the bristles horizontal as suggested.
I haven't had a chance to print this version yet. I will tonight.
Thanks for the help and suggestions.
Anybody now of a cheap battery source for the size of battery these take? I think LM44 or something similiar. I'm going broke trying to keep these powered for my kids. A design with a rechargeable capacitor would be nice. Anybody?
One place I have found with these button cells cheap is actually the Dollar store. Specifically the Dollar Tree stores carry these batteries in packs of 6 or 8 for a dollar. If you want to buy in large quantities they sell them by the case on dollartree.com. 72 blister packs to the case.
Quick search on Ebay shows 100xLR44 for 4.95 + free shipping from USA (among others)
You get these 5F standby caps (3.3v) which should do fine, even if it only keeps the bot spinning for a minute or so. "Recharging" would be as simple as touching the bot to a charging station, something as simple as two "D" cells in series.
My guess is the kid's energy will run out first...
Do the bristles break easy? It seems like if you cut it lengthwise and printed each half on its side then you could print the bristles the strong way.
I pulled the motor out of an Oral-B Pulsar toothbrush. I was leading a cub scout meeting teaching the cubs how to make bristlebots based on this:
http://www.instructables.com/i...
afterward I thought this would be much cooler if it had a 3d printed body...
Neat! What motor did you use? I just ordered a iphone vibration motor (tiny and only
â¬1,20) at ebay to tinker arround...
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this version I changed the tools used to make this from lightwave modeler to openscad. This is my 1st attempt at using openscad.