Recent content by MillGuy

Do you have a Machinery's Handbook? If not, I highly recommend you get one. It has virtually every thing you would need to know about any sort of mechanical application. A truly invaluable resource. We refer to it as the Bible in my industry. The standard version is nice and compact, but the...

@Baluncore You will have to view it in a regular web browser. I just tried it on my phone and it doesn't display properly.

That is the link based on how that webpage works. Scroll down a little bit until you see "Master Catalog 2018 Vol. 2 Rotating Tools". It will be near the top of the page. There should be a drop-down menu to select "Inch" or "Metric".

@Baluncore https://www.kennametal.com/us/en/re...re/tooling-systems-metalworking-catalogs.html The example is from the Kennametal 2018 Vol. 2 Rotating Tools Master Catalog, section W, page 53. You can get them in metric and inch versions. You can view it in the web browser or download a PDF...

Im still struggling to find the correct calculation for the Radius of the Tangential Arc (Re) According to the Kennametal Catalog: $$R_e=\frac{(\frac{M}{2})^2+(\frac{N}{2})^2}{N}$$ Which works if the alpha angle is 90 degrees, but stays constant even if the alpha angle is reduced to 45 degrees...

Wow! Totally disregard my last post. Way over complicated and pointless. W is just the chordal length, I can't believe I didn't realize this sooner.

So here is where I am so far. The Beta angle is not that important, what I really need is the Radius of the Tangential Arc (Re) I hope what I have so far makes sense, and that I'm going in the right direction. The nominal dia. is N, and the minor dia. is M Solve for Rn $$\alpha = \arccos(1...

You'll have to forgive me for taking a while to respond, it's fairly busy at work at the moment and I only get to work on this on my coffee breaks. Plus it's Friday🎉

That is a MUCH nicer way to write formulas. I need to learn how to post like that. The reason I write them the way I do is because that's how both Excel sheets and the machine controller use them.

Yes, I'm on the Practical Machinist Forums. They're great for hearing about other peoples experiences with certain situations and processes. Machining has so many different areas of expertise and every one like to do things in their own little way, sometimes it can be difficult to get the right...

https://www.kennametal.com/us/en/re...re/tooling-systems-metalworking-catalogs.html The example is from the Kennametal 2018 Vol. 2 Rotating Tools Master Catalog, section W, page 53. You can get them in metric and inch versions, I have the inch version PDF downloaded. In their example it uses a...

I've created a macro program used by a CNC milling machine to cut threads in a hole. I like to use macro programs because it allows me to use the same macro for any different size of feature just by changing a few variables. I like to first test out my macro programs using a spread sheet to plug...

Hi, I'm a Machinist from Canada. I enjoy challenging myself by learning and creating custom macro programs for different manufacturing processes on my CNC machine. I'm hoping to get some insight on some areas that I'm struggling with.