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| Spur and pinion for RC truck the analog way |
| (1/1) |
| tapkoote:
I offered to cut some gears for my buddies truck. It’s been many years since I’ve done it and had to retrieve the indexer and instructions from the dust. It took a bit to retrain my brain and test on some plastic scrap. The original ratio was 16/48. or 3 to1 My cutters are 20P- just to make the math easy. In order to hit the gear diameters I’d have 19/56 or 2.5 to 1. He said that it be fine. But I had to order a #6 cutter. Since I wanted to get this done, before next years snow, I ordered one off flea bay, even though it was 1 inch bore. I found in my little gear cutting box a one inch arbor that hadn’t been finished.Some how 20 years ago I thought I might need one-I guess? I put it in the lathe and sized the clamping end. Fit a collar and a drive pin. I hacked up a piece of aluminum plate, drilled some holes,spun it into a gear blank, which fits the drive dog. I'll add more later..... |
| tapkoote:
Got started on a slow tortious journey towards new gears. Since the drill press isn't built for side loads, my cutter acts as a one tooth cutter. |
| tapkoote:
I learned something about those multi tooth cutters. Higher spindle speed, and they behave better. Went from 480 rpm to 2175 rpm. Much nicer. |
| Brass_Machine:
I embedded the Youtube videos for you. Eric |
| tapkoote:
Thank You Eric If I wasn't so old and cranky, I'd learn the language of computers. Tonight between the second and third periods of a hockey game- I cut 18 teeth/spaces in 19 minutes. Thats more fun than typing. :thumbup: |
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