Team B.A.C

Home

Bots

NPC Actuator

TCMW IV

MURC

Little Bite of Death This is a beetle-weight robot utilizing a pneumatic CO2 system

This is the latest pic of Little Bite of Death with the anti-multi bot flipping arm on.

Little Bite of Death is now the beetle-weight two time champion at the MURC events (ok, self bragging over) Upgrades include: Tamiya planetary gearboxes at 100:1 running at 6 volts. Changed over to the Rock-the-boat regulator to save weight and use the 16 gram threaded CO2 cartridge. Changed the 110mah cells over to 250mah cells for longer running if needed. Lastly, the impressive magic marker paint job.

This is Little Bite of Death Proto.  My final envision was to make it a walker looking like a tarantula.  But am thinking on leaving it alone and just upgrading the drive speed. The 12gram CO2 disposable cartridge provides about 14-16 shots on the flipping arm. LBOD also has a smaller arm that would provide more flipping power, but this longer arm works just fine at tossing the other 3 lb bots around.

Pneumatic Parts used for this bot. (  ) is the weight in pounds. From Palmer-pursuit CO2 adaptor rat-attack (.17) had them tap an 1/8" NPT thread into the end for an extra charge Palmer in-line Rock regulator (.27) (2) 90 degree elbows (.07) On/off valve (.08) From McMaster Carr 48435K715 relief valve 150psi (.09) 6124K123 solenoid valve 12VDC (.31) This is from Norgren, hoping to get a 6VDC solenoid for this valve since McMaster lowest voltage was the 12 volt one.  Have since run the air valve manually. 44705K179 aluminum 1/8" cross (.08) 51055K11 plastic male instant fitting (.01) 51055K47 plastic 90 deg el instant fitting (.015) 6498K522 air cylinder 3/4" bore, 1" stroke w/ spring return (.20) the spring exerts back about 5 to 5-1/2 pounds 6498K72 pivot bracket (.10) 6498K42 rod clevis (.07) Other useful links that I used. Bimba Pneumadyne PaintBall to Go MWPW

Here are a couple of pics showing the High pressure On/Off valve and the pop-off low presser valve that is used as a low pressure purge also.

Here are a couple pics of the servo to air valve connection. Decided to scrap the coil due to this air valve can be operated manually.  Used 3/32 square tubing melted into the manual slot and glued into the servo after opening up the screw area.