Axe mechanism

[aliboy]

I am considering to build and axe robot i was wondering what mechanism to choose . I know there is pneumatic ones but could that be in corparated in a featherweight?

[Guest]

Axe mechanism

Its certainly possible, and I think its been done. The main issue I can see is whether youd have enough weight left over for a nice heavy axe head.

The other common option is an electric one.

[blazerbotics]

Axe mechanism

Blue (from the big nipper team) is a pneumatic axe. it uses a rack n pinion system (same as thor and THz). It currently runs off a compressor, but there were talks about it going to CO2. I have considered building an axe, but i decided to stick with the flippers.

[james...venom]

Axe mechanism

There is a co2 axe being made by Wayne cummings. called Basher. its got a revolutionary design like no other axe. its also 16 bar which will make it the most powerfull axe around. Rc Wars have produced an electric axe and boy is it good. its debue will be at the Rc Wars Championships

[babeth]

Axe mechanism

Our Project One had a CO2 powered axe (and flipper). Mario had a nice system for it, I think its called an actuator. Youll have to ask him for details though.

[maddox]

Axe mechanism

Rotary actuator to be exact. Very easy.

[aliboy]

Axe mechanism

HOW DOES THE ROTARY ONE WORK?

[aliboy]

Axe mechanism

WOULD A WINDOW WIPER MOTOR AT 24V WORK ?

[maddox]

Axe mechanism

A rotary actuator is a kind of pneumatical cylinder , but not with a rod that has a linear motion, but with an axle that turns a certain amount of °

How does it work, You put on air on one side and the axle turns, and visa versa.

[team_ireland]

Axe mechanism

WOULD A WINDOW WIPER MOTOR AT 24V WORK ?

Thats like asking how long is a piece of string.

There are so many different ways a ww motor could be used so the answer is maybe.

Also please there is no need for caps.

Regards
Ian

[Guest]

Axe mechanism

To the left on your keyboard, theres a button called Caps Lock. Press it, and you can type without annoying people. Capital letters are most commonly used when screaming, something that you generally stay away from on a public forum.

But as Ian says, there are tonnes of diffrent windscreen wiper motors. Some might work, but theyre most likely too slow. Some cordless drills would work better.

[ewan]

Axe mechanism

Even the cheap 24v drills you can get from maplin or argos (and other places) have lots and lots or torque- arguably motor than WW motors.

As someone with no expirience with WW motors :sad: Can I ask what the output shaft usually consists of? Is it a simple keyed axle?

And yes, capitals are annoying, I also find it annoying when people use capitals on ebay or the for sale section of this forum, believe me- IT DOES NOT WORK

[blazerbotics]

Axe mechanism

WWmotors usually have a shaft with a slight cone and then a thread on the end (either M6 or M.

[aliboy]

Axe mechanism

Sorry about the capitals

[terrorhurtz]

Axe mechanism

Note that the weight of the axe head is not particularly important (for power) in a pneumatic axe, as long as you have good ram speed. A lighter axe head also tends to make the robot jump less.

However, on an electric axe, the only way of getting a good level of enery into the axe is by having a very heavy head on the end of a long shaft. The motor is producing energy at a constant rate, so the longer the swing time, the more energy will be in the axe head at the end.