Engine / Boiler: Cheddar PuffinChassis: Two Tamiya TLT-1 Fuel: Butane/Propane mixRunning Time: 25-35 MinOperating Pressure: 3-4 BAR
I started with this Cheddar Puffin steam engine from ebay.it was in rough shape, and took a lot of time and effort to get it back to running condition. I had to replace the sight glass, and lots of o-rings, and repair the engine. The cylindershad slipped out of its holding pins, and almost the whole engine had to be taken apart to fix the problem. But at least everything was fixable, and once I got it going, it provided nice power.
The chassis is made from 2 Tamiya
TLT-1's (radio control 4x4 chassis) mounted together end to end (minus 1 set of wheels) Each chassis had a center, front, and rear differential. Instead of the motor, I mounted the two pinion gears toa shaft, and mounted some support for itto extend the entire length of the chassis. A sprocket was attached to one end for the steam engine to power it.
TLT-1's (radio control 4x4 chassis) mounted together end to end (minus 1 set of wheels) Each chassis had a center, front, and rear differential. Instead of the motor, I mounted the two pinion gears toa shaft, and mounted some support for itto extend the entire length of the chassis. A sprocket was attached to one end for the steam engine to power it.
Cheddar Puffin weighs 5 lb. ( just the boiler and engine, no
water, gas tank, condenser etc.) and the Tamiya TLT was made for supporting a light body. First problem was shocks not stiff enough to support the extra top heavy weight. Evenstiffening up the shocks, it swayed as it turned. In the end I used some silicone tubing to help support the weight. A disposable gas tank was used first to test this puppy out without having to refuel for each run. Tamiya TLT kit also allows front and rear steering. I had first set up all of the wheels for steering independently, 3 channel for the wheels, and one for the engine. However, without complex r/c gear, it got waytoo confusing to drive, trying to control each set of wheels. I ended up with a simple 2 channel system - middle wheels locked, and the front and rear work together in unison, making it very easy and fun to control
water, gas tank, condenser etc.) and the Tamiya TLT was made for supporting a light body. First problem was shocks not stiff enough to support the extra top heavy weight. Evenstiffening up the shocks, it swayed as it turned. In the end I used some silicone tubing to help support the weight. A disposable gas tank was used first to test this puppy out without having to refuel for each run. Tamiya TLT kit also allows front and rear steering. I had first set up all of the wheels for steering independently, 3 channel for the wheels, and one for the engine. However, without complex r/c gear, it got waytoo confusing to drive, trying to control each set of wheels. I ended up with a simple 2 channel system - middle wheels locked, and the front and rear work together in unison, making it very easy and fun to control
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