Das_Wookie
Aluminum
- Joined
- Jan 11, 2008
- Location
- Austin, TX
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I've tried drafting the silliness with my standard method of drawing ANSI gears. That's not working. From trial and error I've gotten close, but it's not close enough. I need to get this right.I'm just stuck as to how.
Not trying to be evasive or annoy you, but that is precisely part of the issue. Without specifics, you are guessing. Period. I say that because while I'm not on a big screen with a clear picture, it looks like they're beat to shite. So, any information you can interrogate from it is likely to be "off" from what was originally specified. And that doesn't even address tolerancing.
That said, try running it through your app and use 1.5M using DIN 5480. I think you will get close to what you are looking for.
This really is a nightmare. Metric splines are a cesspool filled with alligators.Everything else on it is metric. It's metric. The ID and OD measurements are metric. I have no experience with designing or drafting involute splines.
Your photos appear to be of three separate objects. Which piece do you need to identify, and which does it have to fit? That shaft in pic #2 doesn't look like an involute profile but the plates in #1 and #3 do. If all you have to do is make something to fit that existing shaft, just grind a slotting cutter and chunk it out with the BP quill on a dividing head.
This really is a nightmare. Metric splines are a cesspool filled with alligators.
First thing to find out is when was it made ? Until recently there were no metric involute splines. They were inch splines converted to metric. The straight-sided splines were metric but the invos were an abortion. So if it's older, it's probably really a bastardized inch spline.
If it's newer, they did finally create real metric invos starting from scratch. All the ones I have seen were 30* so if you can find the standard somewhere you can calculate from that. AGMA prices are retarded, forget those idiots. Machinery's Handbook didn't use to have it but they might now. Or try the Ash Gear catalog. The older Ash catalogs were more useful for gear stuff than the Handbook. I don't know about now, haven't been there since forever.
If you are still stuck after a while, shoot me a pm and a sketch, everything here is metric. I can ask the guys at the shaper factory to check what you've got, if you get kind of close.
Metric involutes suck. Metric teeth suck. Metric sucks
p.s. I see you are in Austin ? And you are going to make 50 ? Amarillo Gear is close to you. They have done this all before. Sometimes it's faster and cheaper to go to a guy that has experience
Worst case is a guy with a gear shaper who will do this properly, in the minimum amount of time with the correct cutter that will give you the correct profileI am thinking of worst case using a dividing head and turning my VMC into a shaper... but if I can get the profile nailed, then I can sub out for EDM.
If I could find a way that I could print out a wide array of splines and then try and see which one most closely matches, I would try my hand at doing that.
Not trying to be evasive or annoy you, but that is precisely part of the issue. Without specifics, you are guessing. Period. I say that because while I'm not on a big screen with a clear picture, it looks like they're beat to shite. So, any information you can interrogate from it is likely to be "off" from what was originally specified. And that doesn't even address tolerancing.
That said, try running it through your app and use 1.5M using DIN 5480. I think you will get close to what you are looking for.
Notice
This website or its third-party tools process personal data (e.g. browsing data or IP addresses) and use cookies or other identifiers, which are necessary for its functioning and required to achieve the purposes illustrated in the cookie policy. To learn more, please refer to the cookie policy. In case of sale of your personal information, you may opt out by sending us an email via our Contact Us page. To find out more about the categories of personal information collected and the purposes for which such information will be used, please refer to our privacy policy. You accept the use of cookies or other identifiers by closing or dismissing this notice, by scrolling this page, by clicking a link or button or by continuing to browse otherwise.