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Radio mods

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Charles Oates05/07/2007 12:35:00
566 forum posts
46 photos
I've built a very small tug, it's only 14 inches long, great for sailing on the garden pond when I can't get down to the lake. The speed control and drive is taken from a scrap servo ( the gears were shot). This does work and speed is fine but the dead or neutral band is tiny, and I can't work out how to increase this. Has anyone got any ideas. I seem to remenber Glynn doing something similar years ago, or maybe that's just a senior moment.
Paul Freshney15/07/2007 22:04:00
293 forum posts
15 photos
An alternative is to still use the servo motor as a drive motor and then install the latest tiny lightweight M-Troniks ESC which would do the job. Or 'Action' could provide something equally suitable. I note for plastic magic conversions done by Dave Abbott, that generally he has used a servo motor for drive but a commercial esc for speed control.
Malcolm Frary11/08/2007 23:16:00
893 forum posts
I've been running one of these with the same arrangement for about ten years. Zero deadband, but no worries. How often do you come to a dead stop and stay there?
I just use the trim as an engine rom telegraph.

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