99waterjet
On Feb 21, 2012, at 2:46 PM, Bob Blick wrote:

I use waterjet gears all the time on prototypes, see attached. The
smaller gear has roughly the same pitch as what you describe and is
aluminum.

Cheers,

Bob



On Wed, Feb 22, 2012, at 10:29 AM, IVP wrote:
> Hi all,
>=20
> a current project calls for a simple low-speed gearbox using involute
> gears, made of 3 - 4mm acrylic or polycarbonate. It's not meant to
> function at the full speed of the eventual device, but as a slow-motion
> display / representation. It *has* to be waterclear material
>=20
> The largest is 80mm diameter, with 80 teeth, the smallest is 20mm with
> 20 teeth, so the width of each tooth is pi mm. The teeth don't have to be
> rxact involute, as long as they mesh reliably
>=20
> The reply just now to asking for a quote (http://www.laserstream.co.nz/)
>=20
> "Unfortunately we are unable to help in this instance as we would be
> unable to get the detail required"

--=20
http://www.fastmail.fm - Accessible with your email software
                         or over the web

<waterjet_gears.jpg>--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.