Art Fenerty (MACH3 author) has designed a new program for doing gears with
a milling machine or router. As I understand it, just about any profile is
possible and to be able to make large clock gears would be a snap.
John Dammeyer
Automation Artisans Inc.
http://www.autoartisans.com/ELS/
Ph. 1 250 544 4950
> -----Original Message-----
> From: gingery_machines@yahoogroups.com
> [mailto:gingery_machines@yahoogroups.com] On Behalf Of David Frantz
> Sent: Sunday, January 30, 2011 4:58 PM
> To: gingery_machines@yahoogroups.com
> Cc: gingery_machines@yahoogroups.com
> Subject: [gingery_machines] ShopNotes V20, Issue 115 - cool
> router jig / lathe.
>
>
> Just a heads up Shop Note issue 115 has a very interesting
> router jig/lathe described in an article in this issue. I
> haven't been able to get online with my PC yet, to get the
> gear making info but they seem to have an easy avenue to wood gears.
>
> This brings up an interesting question, how difficult would
> it be to make a hob for gears with teeth this large? The
> idea would be to cut aluminum or wood with the hob. If not
> a hob maybe a single point cutter? The problem with doing
> a hob is the pitch which would require interesting gearing on
> most lathes.
>
> The thought is to try to make the gears with a little more
> precision than can be had with a bandsaw. Of course the
> intent would be to use normal home shop equipment. A CNC
> router would be ideal here but I don't have one of those.
> Maybe I should build a CNC router instead. The thing I have
> about cutting them out on a bandsaw is the thought that the
> gears would end up bumpy.
>
> Interesting an idea just came to mind that if I do one good
> pattern I could use a router to do a clean up pass. This I
> need to think about a bit more. It would seem as though the
> right fixture would turn this into a precision operation.
>
> In any event you gotta love ShopNotes. Their articles really
> get the inventive juices flowing.
>
> David A Frantz
> websterindustro4at4mac.com
>
> Sent from my iPhone.
>
>
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