Do you sell the cogs for pololu.com/catalog/product/1106 ?
I am trying to replace a cog with 3 broken teeth - 4th from top.
I am using this for the x axis of a 3d printer b9creator.com - and am not putting this under stress.
Any help much appreciated,
Unfortunately, we do not sell the gears for any of our gearmotors separately.
Could you tell me some more about how you were using the motor and how it broke? How long did it work for you? What voltage were you powering it with? How were you controlling it? What was it doing (e.g. was it making sudden starts/stops/reversals)? How much of a load was it moving?