Implementation of Cooler Crawler Throttle for model railroading
Component layout for soldering. Component not to scale. Modified to suit available parts.
Original design plans, schematic, and component list by Rich Weyand.
The magic is the way this circuit puts "bumps" into the power supplied to the track.
The idea is to jolt the motor at low rpm so it can crawl on the track.
Must've spent like a week working out the layout on paper before I put the things together.
Those nice looking, nice feeling momentary push switches I got at Mike Quinn's just didn't work.
Didn't know until they were installed and had to remove them and replace with Radio Shack ones.
The next thing that sucked was the relay that does the reversing,
they tended to stick, return spring was not strong enough compared to the coil.
A bunch of bad component choices, like, not getting the right cap can be solved by ganging up a bunch of them together right?
That's what the text book said, but in real life its a nightmare. The heat sink is just a tea candle cup. Couple that with the bad switches
and nothing works.
A few more bucks of investment later... a power supply that works.
Unless noted otherwise, graphics and text and designs are all Copyright (c) P A N G Industries.
Trademarks are the properties of their respective owners.
if you claim ownership of content and wish to have them removed.