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Step 3Hardware(2): Bend the Legs
(1) using the wood as a body screw on one motor so that the shaft is pointing upwards at approximately a 45 degree angle. Screw on the other motor so that the shaft is horizontal.
(2) bend the legs using the conduit bending tool into whatever shape you think will work (I had to try a couple different angle bends before it wort of worked).
One thing about shaping the legs, don't make them flare out too far foreward and back. If the legs flare out too much as the robot walks they will get further and further apart and the robot will sag in the middle.
Also, don't flare the legs out to the left and right of the robot, this makes it more stable but also a LOT harder for the robot to move the legs up and down. Flaring them inwards towards the robots body axis made a huge beneficial difference on my robot.
--Note--:
In my experience it is very hard to do double bends with steel conduit (see S shaped bend in diagram below). A big part of conduit bending is making sure you have enough weight distributed in the right places (to hold down different parts of the conduit, etc). So it's goo to have very heavy objects around, like a radiator, or big people.
(2) bend the legs using the conduit bending tool into whatever shape you think will work (I had to try a couple different angle bends before it wort of worked).
One thing about shaping the legs, don't make them flare out too far foreward and back. If the legs flare out too much as the robot walks they will get further and further apart and the robot will sag in the middle.
Also, don't flare the legs out to the left and right of the robot, this makes it more stable but also a LOT harder for the robot to move the legs up and down. Flaring them inwards towards the robots body axis made a huge beneficial difference on my robot.
--Note--:
In my experience it is very hard to do double bends with steel conduit (see S shaped bend in diagram below). A big part of conduit bending is making sure you have enough weight distributed in the right places (to hold down different parts of the conduit, etc). So it's goo to have very heavy objects around, like a radiator, or big people.
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The front motor is activated in any given direction, rapidly followed by the rear legs, rotating in the opposite direction. After that, both motors reverse, starting with the front motor.
see:
solarbotics.net