Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
Gear hobbing
The recent thread about choosing gears for the drive train in a gear
hobber left me wondering. You can hob gears by driving the blank with the hob itself. I just rented a video by Jose Rodriquez that shows how to do it. There are also web sites showing hobbing with hob-driven blanks. This technique seems to work well enough. What makes the independently-driven blank process better enough to justify the highly increased complexity? Thanks, Bob |
#2
|
|||
|
|||
I think accuracy may be the root of some of these. Check out this site
http://easyweb.easynet.co.uk/~chrish/worms.htm Bob Engelhardt wrote: The recent thread about choosing gears for the drive train in a gear hobber left me wondering. You can hob gears by driving the blank with the hob itself. I just rented a video by Jose Rodriquez that shows how to do it. There are also web sites showing hobbing with hob-driven blanks. This technique seems to work well enough. What makes the independently-driven blank process better enough to justify the highly increased complexity? Thanks, Bob |
#3
|
|||
|
|||
machineman wrote:
I think accuracy may be the root of some of these. Check out this site http://easyweb.easynet.co.uk/~chrish/worms.htm Yeah, that's one of the sites that shows a *hob-driven* blank. Actually, I didn't see any sites with independently driven blanks. Googling "synchronized gear hobbing" wasn't much help (production / machinery sites mostly). Does anybody have a good link for synchronized gear hobbing? Bob |
#4
|
|||
|
|||
Other than coming up with a manual for a gear hobber, I doubt if you are
going to find much info on the web. I checked a few texts and other than a brief mention there is not a lot of info. Try ABE books for used books on gears or gear making as such below http://dogbert.abebooks.com/servlet/...%2Bhob%26x%3D0 http://dogbert.abebooks.com/servlet/...%2Bhob%26x%3D0 Bob Engelhardt wrote: machineman wrote: I think accuracy may be the root of some of these. Check out this site http://easyweb.easynet.co.uk/~chrish/worms.htm Yeah, that's one of the sites that shows a *hob-driven* blank. Actually, I didn't see any sites with independently driven blanks. Googling "synchronized gear hobbing" wasn't much help (production / machinery sites mostly). Does anybody have a good link for synchronized gear hobbing? Bob |
#5
|
|||
|
|||
http://homepage.ntlworld.com/stevens...earhobbing.txt
Also try the yahoogroups mwmills2, there are a bunch of Model Engineer Workshop articles on diy hobbing machines. John Stevenson pops in occasionally on mwmills2, diycnc and here. His posts are always worth reading, you might try googling "stevenson gear hob". Adam Smith Midland, Ontario, Canada "Bob Engelhardt" wrote in message ... The recent thread about choosing gears for the drive train in a gear hobber left me wondering. You can hob gears by driving the blank with the hob itself. I just rented a video by Jose Rodriquez that shows how to do it. There are also web sites showing hobbing with hob-driven blanks. This technique seems to work well enough. What makes the independently-driven blank process better enough to justify the highly increased complexity? Thanks, Bob |
#6
|
|||
|
|||
Try this - ISBN 159180889 Gear Cutting Practice 1937 Colvin and Stanley.
Lindsay Publications Inc reprinted it On hobbing - there is 22 pages. Tons of different gears are defined and tabled. Lindsay did it in '92. Martin -- Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder machineman wrote: Other than coming up with a manual for a gear hobber, I doubt if you are going to find much info on the web. I checked a few texts and other than a brief mention there is not a lot of info. Try ABE books for used books on gears or gear making as such below http://dogbert.abebooks.com/servlet/...%2Bhob%26x%3D0 http://dogbert.abebooks.com/servlet/...%2Bhob%26x%3D0 Bob Engelhardt wrote: machineman wrote: I think accuracy may be the root of some of these. Check out this site http://easyweb.easynet.co.uk/~chrish/worms.htm Yeah, that's one of the sites that shows a *hob-driven* blank. Actually, I didn't see any sites with independently driven blanks. Googling "synchronized gear hobbing" wasn't much help (production / machinery sites mostly). Does anybody have a good link for synchronized gear hobbing? Bob ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#7
|
|||
|
|||
xray wrote:
Thanks, but you typed the ISBN wrong (missing a 5). Here's a link to a finder list... snip Better yet, order it from Lindsay and support their effort to keep these books around: http://lindsaybks.com/ord/index.html Order number 20889, $14.95 Bob |
#8
|
|||
|
|||
Your right - and I'm a "Book Collection" program user that enters those bar code numbers
I mean LCN or ISBN. Book collection goes out and pulls in the information on the book for your data base. A professional library uses the version I have. Lots of work to enter a large lib into it though. Fast lookup and such. 1559180889 Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder xray wrote: On Wed, 24 Aug 2005 22:02:20 -0500, "Martin H. Eastburn" wrote: Try this - ISBN 159180889 Gear Cutting Practice 1937 Colvin and Stanley. Lindsay Publications Inc reprinted it On hobbing - there is 22 pages. Tons of different gears are defined and tabled. Lindsay did it in '92. Martin Thanks, but you typed the ISBN wrong (missing a 5). Here's a link to a finder list... http://www.bookfinder4u.com/IsbnSear...89&mode=direct Looks good, though. I ordered one and some other stuff I'd been putting off. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
uh, oh -- post drill gear problem | Metalworking | |||
Gear cutting follow-up | Metalworking | |||
Gear fabrication advise needed | Metalworking | |||
Gear cutting...am I crazy? (long) | Metalworking | |||
Help a newbie out? | Metalworking |