Pulverizer Build Diary

[Mega Masher]

Should i use gears and chains or pulleys and belts for gearing down the motors?

In other news, this is my antweight, mini pizza. The base is alluminium, the outer ring is a steel cookie cutter, and the motor is from a handheld vacuum cleaner that i could take apart (i think....). So far it weighs 98 grams so the lid will be cardboard. The outer ring is 3 inches in diameter so it should fit in the size limit nicely.

[archie2000]

That is the SMALLEST antweight ive ever seen!
They can be about 5 inches long it just has to fit into a 4 inch cube.
Looks quite cool but good luck getting anything else in there.

[Mega Masher]

Should i use gears and chains or timing belts and pulleys for gearing down my featherweight?

[Mega Masher]

Anyone?..........

[psycho_fling]

everyone has their own preference and each method has it's advantages

what motors, wheel size and voltage are you planning on using? this will dictate a ratio estimate then the best method will be easier to suggest

[Mega Masher]

I am using these 2 of these motors run off 6s lipo's at 22.2vhttp://www.robotmarketplace.com/products/BP389010-00.html
And the wheels will be 98mm diameter banebots blue wheels that are 20mm wide.

[Max]

Why not just buy the dewalt gearbox that robot marketplace sell to go with that motor, it will be easier and possibly cheaper.

[Mega Masher]

I will not buy that gearbox for 2 reasons:
1. It has been discontinued by Robot Market Place.
2. It is too big for my chassis size

[Mega Masher]

Hello all, time for an update:
Beetleweight: Accelerometer arrived today - 2 weeks to arrive is just pathetic! I ordered it from Sparkfun, and needless to say, i will look elsewhere for an accelerometer in the future.

Featherweight: Made a CAD model of it in Blender 2.63, not too accurate (no measurements), but i am planning to make the chassis 400mm in diameter, to give me much more space- i just felt that 250mm was to tight and there was not much space for components to move about after a hit.
By the way, does anyone know when the earliest you can sign up for the 2014 FW Championships (yes, i know it is very early, but i don't want to miss out)?

[RogueTwoRobots]

Sparkfun is an American company, so unless you ordered from a UK warehouse, two weeks is a pretty good delivery time from the States.

Sign-ups for the UK FW champs tend to be open 2-3 months before the event, so it will depend on when that is. This year, for example, the sign-ups opened mid-January and the event was the first weekend in April.