Thanks Noah! NYC👍💪🇺🇸!

Makin Sumthin From Nuthin NASA type work? Lmao

@Sxt NASA does all sorts of different work. Most of the work Peter does he has to hold tolerances just as tight as NASA.

@@xenonram In fact, Peter has said in a different video that he's MADE stuff for NASA.

I may have some video clips. If so I will post one on Instagram.

I may have some video clips of it running. I will check.

The very machine I started on.

Thanks Aaron; last year this time I think I only had about 500-600 subs.

In the previous video there is a picture in a picture that shows the parts. It shows the surface it leaves. Remember this is a roughing tool so it leaves a scallop surface.

Thanks Craig!👍🖖

Thanks userwl2850. These cutters were machined from commercial heat treated 4340 steel. That would make the hardness around 34-38 Rc. The first cutters I also made out of the same material and they have held up real well.

Thanks bluehandsvideo; Yes there is just one camera. I means I have to stop move the camera and start the program a lot. Fortunately on a CNC machine this inst to difficult to do with the single block function key.

Dang! I know exactly how much work that is! Way more than I've been willing to do! LOL I'm only running mach3 and I don't trust the feed hold at all on it!! Since you're doing multiples of the same part, you can run each part with a different camera position and then do all the work on the computer. But.....knowing just how much grief and time are involved in the editing end of these vids, sometimes it's a lot easier to get shorter clips that are more specific and then splice them. I'll end up letting my camera run for the duration or until I know I've gotten the final tool paths. It can take quite awhile to whittle 2+hrs of vid down to 10min. lol Thank you for the time/effort you're putting into your vids! :)

If you rewatch the previous video. In a spot I show a picture in a picture in the upper right of the video. Those are the parts I rough with these cutters.

You did indeed I missed it the first time. Great videos. You do a lot of interesting stuff that I don't see elsewhere on youtube. Also that machine of yours is very cool.

Thanks Trevor; The Insert is a Iscar RCMT 1204M0-14 IC907 Grade.

I’m not sure the exact coolant volume. I would guess about 200 gal. Most of the coolant gets carried out by the chip conveyer. When running the machine constantly I think I make up coolant about every 1.5 weeks.

The cut width is .915 wide. The inserts are 10 mm in diameter. In order to cut that width the inserts have to be staggered. The cutter has 8 inserts but is really a two flute cutter.

I'm not a pro but I'd also like to add that this also makes the cut per tooth less work on each tooth per revolution.. kinda like offset teeth on all types of saw blades.

Daniel Gilbert I think what he is referring to is the profile shape of each tooth. What you are referring to is the set of the teeth on a saw to make the kerf wider than the back of the blade. I have bought table saw blades where one tooth cuts to one side the next tooth cuts in the middle and the next to the other side. This is similar to what this cutter is doing. There are two inserts that cut toward the end face. The next two cut half way up in the middle. The next set half more. The last set cut at the upper face toward the shank. So 8 inserts in two sets of 4. Or two spiral flutes with 4 inserts each.

Daniel Gilbert no....... no.. no.. think about it... take look at a circular saw blade... every tooth is offset.. 1 , 2, 3, over and over so that when you feed in the material the next tooth doesn't have to do so much work... I'm not saying he designed the tool this way for that reason but as a resolute his tool/machine absolutely benefits. The more teeth on your cutter the more horse power your machine needs to complete a revolution.

Daniel Gilbert ... wow great job... you don't feel comfortable talking about something so you "lol" it off? It is what it is... there's not a lot of factors....

Thanks Chad! The endmill is actually roughing the angle in steps on the insert pocket walls. That way the special endmill that finishes the tapered walls has less load on it. Plunging a end mill straight into something usually doesn’t work very well. But if I ground a form tool that could work. I usually try not to use any more special tooling than absolutely necessary.

In the case of these insert pockets the inserts being round the screws aren’t offset. With the tapered sides of the insert pockets surround more than 180 degrees of the insert. It hasn’t been necessary to put the holes off center.

I did make a video showing these cutters in use. It was the one and only video one of my customers asked me to take down. They were concerned that their competition would see it.

@@EdgePrecision I completely understand, the finished product looks awesome.

There is a up coming job out of Inconel 718 150 ksi (very tough material to machine) that is rather complicated. Not a real large part (about 4" dia. stock x 19.5 long) but its somewhat involved as far as milling/turning goes. There are seven parts to make.

I look forward to seeing videos of it

As the jobs come up is how your seeing them. If the job has heavy machining you will see it.

I will check into that. I like the build quality of the Hero6 over the Hero4. I’m not sure yet if it’s better than the Hero 4 camera.

The 1/2" endmill is turning a 4000 rpm. The feed rate varies because of the milling style employed but when cutting is at about 50 inches per minute.

That would depend on how you program the tool path for a tapered endmill. I usually program the path for the bottom bottom diameter or tip diameter. Than its just like a regular endmill as far as offsets are concerned. The upper diameter or taper just cuts away more material. Some CAM software's don't automatically do it that way but you can usually make that happen by just using a bottom profile shape.

This material was 4340 commercial heat treat.

This answered my question. Thank you

dont forget the disco ball

Thank You Alyson Grassi; I don't know if you saw the first video about these cutters. In that video I say what material there made of. The material is already heat treated before machining. It is 4340 commercial heat treat. That would make it 34-38 Rc hardness range.

Edge Precision no I didn't I've subscribed to your channel today and was my first video. Nice job man!

The grinder I own is a Star STG grinder. Not the company that makes the Star screw machines. It’s the same company that makes the Star gun drills. Here is a link if you are interested. www.star-su.com/

@@EdgePrecision thank you very much

I'm actually cutting the radius on both ends and the flat in the middle to a angle. Only a form tool from the end could do that (I could grind such a tool on my grinder). Or a front and back corner rounder and a endmill.

Ball endmill for what he's doing is the only way to go...

Never mind saw the first video.

I wanted to project it out away from the chuck. In case I need to tip the B axis toward the chuck. It gives me the clearance to do so. The fixture isn’t only just for these cutters. I have used it for other tools as well. If the insert pockets have a lot of positive rake on a right handed tool the B axis has to tip toward the spindle.

I didn’t really keep track of the exact time. If I was to guess for both operations about a hour. Once they were set up.

No ones enough.

This material was 4340 commercial heat treat. That would make it fall in around 34-36 Rc hardness.

I have been using QualChem (I guess that’s spelled correct). Made by the same people that make the coolant I use. If possible I will always use tapping fluid. On rare occasions I do use flood coolant on large taps in aluminum. The body of these cutters is made out of 4340 commercial heat treat round bar.

Now that i am at the shop. I can give you some more accurate information. Its Qualichem QuickTap. I have tested/compared this to Molly-dee tapping fluid. It seems to work as well without the nasty smell and Molly-dee will also stain certain materials.

Ok that is good to know I have better option to moly dee. Moly is nasty stuff. Like dirty motor oil heh

Thanks Bill; Yes the cutter is my design special for this part. As for the insert type. It was chosen for being the least expensive to do the job.

I should have known why else would you make a cutter if one was commercially available considering the work that you are doing. Good stuff Peter, I hope you are considering setting up Patreon account or maybe some kind of swag you really are doing a good job and I'm sure many would be willing to support your efforts.

Do you think people would be interested in a patreon account for my channel? I would have to think what extra value I could offer them.

Edge Precision Yes I think people would. You could offer the videos sooner to your patreons. Some don't really offer anything extra and people will contribute based on what your already doing.