This page created 10-26-2003 22:20:13

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Kilian's Robot Shop of Horrors - 10/24/2003

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Jeff's engine/generator project

I (Jeff) have been talking about making an engine/generator for long range robotics. I have played with a 3HP 2-cycle engine and a car alternator. That works great but it is big and requires manual starting. I started a project with a 1HP 2-cycle engine and a DC motor for a generator. I never finished that. This is my latest attempt. It is a 1HP (1-1/2HP?) 2-cycle engine and an EV-Warrior DC motor. I wanted to use a toothed belt but I can't find my box of pulleys. I found these #25 sprockets. The engine and motor together will be about 11 inches long and about 7 inches high. Hopefully the motor will act as a starter and a generator.

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Jeff's new engine/generator
project. This is the
approximate mounting layout.
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Alan's mill, about to be
converted back to a lathe.
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Alan set up the lathe so I
could enlarge the holes in my
sprockets. I needed to go
from 3/8 to 7/16.
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My drill bit was larger than
the drill chuck. So Alan set
it up with a boring bar.
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The sprocket on the left is
the new 7/16. The one on the
right is the original 3/8.
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A new sprocket on the engine.
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A new sprocket on the motor.
I used a nylon tube as a
spacer between the metric
motor shaft and the 7/16 hole
in the sprocket.
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The engine and motor together.


Alan and Bruces's stepper motors

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Bruce Shapiro brought over
his Anemone made from stepper
motors.
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The bottom looks like this.
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This is what happens if you
connect a 3 Volt 100 Amp
supply to a 5 Volt 5 Amp
supply. I missed all the
smoke.
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So they decided to check a
few things before plugging it
in again.
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Jeff was running the motors
with his simulator program.
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Alan was running the motors
with his C programs.
rsoh021.jpg
Lining up all the tubes to a
home position.
rsoh022.jpg
When it stops they all come
back to home position.
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Measuring for wire and
pedestal length.
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More measuring.
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Jeff made this test module
with LEDs. It connects in
place of the motors on the
driver board.
rsoh009.jpg
Alan made a ring of stepper
motors.


In the kitchen

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Peter Kilian got this small
skull as a prize for a
presentation he made at the
Science Museum.
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Alan is installing new
cabinets in the kitchen.
rsoh011.jpg
It is that new cardboard
veneer you have been hearing
about. I knew cabinet
construction was getting
cheaper. But I think he
should have gone to another
store...


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