[Coco] Re: Look what's on eBay / CGP-115 split gears
kevdig at hypersurf.com
Sat Oct 14 14:23:05 EDT 2006
KnudsenMJ at aol.com wrote:
> In a message dated 10/12/06 8:46:39 PM Eastern Daylight Time,
> gene.heskett at verizon.net writes:
>>> Drill a hole in the centers for the shaft. Place one on each face of
>>>the broken gear. Drill 4 small holes through the entire sandwich and
>>>hold the whole thing together with small machine screws with nuts. This
>>>presupposes that you can find appropriate hardware and that you have
>>>space within the plotter for the extra thickness of the gear.
> This still doesn't guarantee enough friction between the original gear plus
> metal splints, and the shaft itself. Unless you under-drill the shaft holes
> and have a really hard press fit of the metal discs onto the shaft -- ugh!
> This 'gear' is only 1/4" wide & about 5/16th" in diameter, so this isn't
> Unless, maybe if 3 of your grandparents were Swiss :-) Gene is right, tho
> -- little pinion gear is way too small for this fix. --Mike K.
It also doesn't address the real problem: the change in pitch where the
split occurs. Mine bind when that tooth tries to pass the other gear.
You can add the printer for the TI CC40 to the list.
There are two of these in all these things: one for moving the paper
(platten?) and one for moving the pen carousel.
Given the number (i.e. percentage) of these that you find split, I think
most will agree that they were designed/manufactured wrong.
The drill bit I was using doesn't seem to be removing any material. What
kind and size of bit have others tried?
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