Home › Forums › NEW!!! The CLOCKMAKERS Forum – Designing, Building & Parts Fabrication › Making multi tooth cutters – Part 2
- This topic is empty.
August 8, 2015 at 9:09 am #49664
Here is part 2 about fabricating multi tooth cutters for clocks. In part 2 I am going to show my process for grinding the radius on the form tool with a grinding jig I made for my lathe. The radius is critical, the jig makes it easy to achieve this radius.
Have fun, William
This will be a multiple video series about my process in making these cutters.
I hope you enjoy, ideas are always welcome.
BACK TO FORUM INDEX PAGE: http://clockrepairtips.com/forum/index.php
BACK TO FORUM INDEX PAGE: http://clockrepairtips.com/forum/index.phpAugust 8, 2015 at 6:39 pm #63210khoward279Participant
You may already know this but try setting your cutoff tool slightly above center and use constant feed. In my years as a tool maker I have found if your cutting air hardening tool steel, A2 D2 and so on I don’t go over 200 rpm and .002 IPR. I also use cutting fluid designed for tapping and use a lot with an acid brush works great on small work. When cutting oil hardening steel, 4140 O1 ect. I cut at no more than 150 and .002 IPM. Try this and see how it works. Thanks for the video’s and good luck with your projects.August 9, 2015 at 5:35 am #63211gereneParticipant
Looking forward to see the rest!
JanAugust 9, 2015 at 4:40 pm #63212
Thanks Jan, in the next video I debated on how far to get into the math…..It would take me days 🙄 to explain. It also may be best to address the finer points when actually designing and or cutting a true wheel or pinion. Stay tuned. Oh, and don’t be shy to get involved in those particular parts, you are probably able to explain those things better than I can.
Kevin, thank you for the advice I really appreciate it, I will try everything you mentioned. Do you think it is possible to have the rpm TOO SLOW? In back gear I can get down to 28rpm. Having the tool bit “just above” center would help me, one thing that I do have happen is the tool bit getting jammed up under the work piece (not fun), yes this can be from wear in my cross slide and such but I am thinking I can adjust for that with your suggestion. Have a great day, WilliamAugust 12, 2015 at 10:27 am #63213oldmantimeParticipant
Looking forward to the next post and hopefully video.
PeterAugust 13, 2015 at 2:19 pm #63214
Hey Peter, thank you for the reply, I love your forum name…..say, I think I walk by your picture when I come into the shop. Is this you??? or is it Bob??
August 14, 2015 at 9:07 am #63215oldmantimeParticipant
Well William Bob has the beard but I have the years — many more years than Bob I think so regrettably that would be me. 😆
PeterAugust 17, 2015 at 8:22 am #63216
That’s funny Peter, but just so you know…..I am catching up to you guys real fast.
Keep an eye out for Parts 3 and 4 on this process, coming soon. Have a great day, WilliamJune 22, 2016 at 8:17 pm #63217its timeParticipant
I see this is a old post but this might be a little bit of help to cut the small disc. This fella made a plate that sets on the chuck and you can place the disc in the same place everytime. Take a look at this video, I think you might get some good ideas.
Buy the way I love all of what you have done and I’ll be watching
Nelson CollarJune 26, 2016 at 4:14 pm #63218
Hey Nelson, I bought some machinable step collets for the lathe, they work great, Thanks, WilliamJuly 15, 2016 at 7:54 pm #63219its timeParticipant
I just seen this and thought it might help you out with your cutting wheels. I watched a video long time ago and can not remember where it is but here is the gear set up.
How is you gear cutting along?
NelsonJuly 17, 2016 at 5:37 am #63220
Hey Nelson, yes I have seen that, I like his videos….. The process I have shown and the formulas have proven to be accurate many times over and I have used them to create the cutters for clock restorations. I am currently “scrounging” for used manufactured cutters and plan on buying a range of them new for a clock build and to be able to offer a clock wheel cutting service for other clock repairers. Pretty busy getting all my ducks in a row for that…. though I have cut a few wheels for other people recently. Have a great day, William
- You must be logged in to reply to this topic.