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it is critical from a geometrical point of view. The machine this particular gear goes on uses the gear as a timing device. It doesnt actually spin a full 360 degrees, but rather back and forth. Low speeds and low directional change. I would say it is more important that we limit our backlash...

http://www.geartechnology.com/issues/0100x/regalado.pdf This is the procedure I will follow.

Helix angle is 0 degrees

I have a gear that I want to figure out the information on. I do not have a cmm with reverse engineering capabilities. Can I use traditional gear inspection methods (dimension over pins, span, #teeth, etc...) to figure out the gear data of this particular gear? Is there a sequence of steps...

I think I found my answer. This is what I am looking for http://www.ttc-cogorno.com/Newsletters/130515MultPtrnsOfFeatures.pdf

I have two hole patterns of two holes (4 holes total) called out separately because of their difference in size. It is critical that the 4 holes travel together as a pattern. How do I properly emphasize that the two different hole callouts must travel together? I feel like this is some sort of...

Does anybody have experience inspecting threaded hole positions with a vision system? True position of a threaded hole is based on pitch cylinder, which cannot be inspected with vision. Also, is there a good method of checking threaded sizes for high production parts with tapped holes?

I have a part that has opposing holes (nominally co-linear axis). holes are same size, separated by a large void. Pins get pressed into these holes and allow the part to pivot and I am only concerned about a projected tolerance zone. This is very similar to the example 7-44 and 7-45 given in...

pmarc, This is exactly what I am after. Is this acceptable to do as per the standard? There is nothing in the standard from what I can see that shows this.

I have a large, broad machined face that I want to control. There is one portion of the surface that I am truly concerned with, and I plan to use Datum targets to hold flatness in a specific area. How can I control the flatness of the rest of the surface? Ex: Datum target area flatness is .002...

I have a part with a large surface, but I do not want to whole surface to be the datum, but just a "Ring" shape, which consists of an outer diameter and inner diameter. Can this be done with datum targets?

Are there any standards or rule of thumbs out there for Section View/Detail View labeling (A, B, C...) for multiple sheet drawings? Example: Mechanical Drawing has a 5 sheet drawing. Sheet 1 has section view AA, does the Section View on sheet 2 need to be BB, or anything different than AA...

I posted this thread in the QC and Inspection forum, but thought I would try here as well... Is there a standard for locations of probe hits for drawings? Any ANSI spec on this? Trying to describe a probing strategy on a print for a CMM. Such as measuring a 3-D profile. The manufacturing...

Is there a standard for locations of probe hits for drawings? Any ANSI spec on this? Trying to describe a probing strategy on a print for a CMM. Such as measuring a 3-D profile. The manufacturing process includes a CMM in the cell and I want to control the location of the probe hits.

gearcutter.... This is exactly what I am looking for. Is cost high? Have you used this software?

Actually, if anybody knows anything about non-involute hob cutter design I think they could be of some assistance.

What you have is a swept cut. I would like to have a generated cut based on two dynamically rotating or moving components. A few example videos are below https://www.youtube.com/watch?v=24k-W7ca070 -AND- Fast-forward to about 0:52 and watch the animation...

Does anybody know of any modeling software that uses a generative modeling approach to modeling non-involute shapes into gears? Example, By trial and error, I would like to model a worm gear with some basic rack shape, and extrude-cut the generated profile out of the gear. This will be...

Looking for a guide to belt manufacturer interchangeability... Seems like Standard Trapazoidal and HTD profiles are the only "Standard" Profiles that many belt manufacturers make and can interchange belts with. What belt manufacturers are discrete about is the newer curvilinear profiles. Some...

Thanks! This information is hard to come by.