Engines > Your Own Design
Ohio Locomotive Crane
Jasonb:
There is also the shaping/slotting option for the gears. Mount the blank ring off to one side of the mill's spindle on your rotary table. Then use the mills quill to raise and lower a single point bit. If you use brass or aluminium it won't be too hard and I don't imagine that the teeth are too big.
MJM460:
Hi Chris, another fascinating project that I will definitely be following along, with my contribution to the number of reads every day
MJM460
crueby:
--- Quote from: Jasonb on September 22, 2024, 10:10:45 AM ---There is also the shaping/slotting option for the gears. Mount the blank ring off to one side of the mill's spindle on your rotary table. Then use the mills quill to raise and lower a single point bit. If you use brass or aluminium it won't be too hard and I don't imagine that the teeth are too big.
--- End quote ---
That would work too! Though for 128 teeth, my arm hurts just thinking about it (the Sherline uses a horizontal top handwheel rather than a side quill lever!) :paranoia:
I have gone ahead and ordered the internal gear, CNC machined with the outer ramp for the turntable rollers also in place. Its a little over 9" in diameter overall, will be mild steel. The spur gear to engage it I can machine myself.
crueby:
--- Quote from: MJM460 on September 22, 2024, 12:42:38 PM ---Hi Chris, another fascinating project that I will definitely be following along, with my contribution to the number of reads every day
MJM460
--- End quote ---
Hi MJM! Great to have you following along!
crueby:
Yesterday I got the wood (synthetic aluminum for the metal oriented among you) ties and base board cut and glued together. The ties are arranged in a shallow arc to simulate a section of a curve, just to keep it looking a little more interesting. The rails will be arced to match. So far one rail has been spiked into place. The other will have to wait a bit, I ran out of the little tie plates and had to order another package of them. The spikes are shaped like the real thing, so the top end grabs the rail and holds it in place. I had the tie plates and spikes left over from making the display trestle for the Shay years ago - they are off the shelf items from the model railroad market.
Closer view of the tie plates. The spikes are being installed by pressing them most of the way in with needle nose pliers, then tapped in the rest of the way with a hammer and a steel block.
Since I need to wait for more tie plates, I'll go ahead to cutting the blanks for the wheels. That will likely be tomorrow, today we are meeting out at the pond with the RC submarines since the weather is so good today...
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