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That was a decade ago, ConnorMakes. You may have better luck sending an email or private message direct, rather then praying they'll monitor a thread that's been idle for 10 years. Click on the...

That was my thought, but the two scales (which are not cm and inches, wrong ratio, although maybe the bigger units are cm) made me reconsider.

Well, either OD = 18mm is a mistake (for pitch diameter = 18mm) or this gear calls for a non-standard, custom gear cutter.

It is good that you know the pressure angle and tooth form!

Is this...

In the link Video_Man gave, the cutter is for 0.75 module. If you follow the link, it actually says "Module Pitch 0.75" in the little table on the catalog page. 0.75 module is much bigger than the...

What are the intellectual property laws like in Afghanistan? (Thar's where your profile says you're from.)

Unless you've got a contract with your customer stipulating otherwise, the answer in the...

Ah, thank you Video_Man, I was not aware of that the metric cutter sets use #8 for the rack, where the DP sets use #1 for the rack.

What's the pressure angle? 14.5 degrees? 20 degrees? Eyeball gauge suggests it's 20 degrees, but you better know for sure before you start cutting anything.

Given that the dimensions are...

I am speculating here, as I've not seen bits like that before. But I wonder if they were used in finishing bells/bores for musical instruments.

MAAP, that was nine years ago. Rather than expect RDUPA to cruise decade-quiet threads, why don't you send a email or private message direct?

Billet. (10 char minimum)

Pot, meet Kettle. Kettle, Pot.

I wear contacts for distance correction as I'm terribly near-sighted. Now that I'm old enough, my distance accomodation is also shot, so I need reading glasses for near work. Fortunately, I found a...

When I was in the service, a buddy in my unit got grit or metal shavings in his eye while working at the (base hobby, not duty) auto shop. The unit CO was about to slam him with an Article 15 for...

I have purchased used machines where the grease literally had turned to wax. And lots and lots of old tooling where oils have mostly turned to varnish. Agree with Colt45: solvents and heat. I...

It definitely has a shelf life. I don't use a lot of it, so the small roll I buy from ULine expires long before I use it up.

True brazing works better with HSS than O1, because brazing temperatures (over 800F, BAg-7 at 1150F) will take the temper right out of O1, and if you reheat the O1 tip to requench (1400-1500F),...

Nice little machine. Reminds me of the sort of thing my optometrist uses. Having the drill holder rock back so the point immediately falls under the microscope for inspection is nice.

I like the...

Not if it's not needed. 1) What are the expected loads? 2) What constraints do you have on finished rack weight, and finished rack cost? Given 1 and 2, access to a catalog of standard tube sizes,...

I haven't built one, but I've got the Air Flow Systems PCH-1 fume collector. IIRC (it's been a while since I've had my system opened up) the filters are cylindrical, maybe about the size of a 3...

I think we've been trolled. He never came back, not even to complain again.

There's a whole sticky thread elsewhere on the forum on that subject. In the meantime, start a new reply post or edit an existing post that's not too old. (If you are offered "Edit Post" as an...

Sadly, any website that gives me a black screen while "Loading Your Experience" gets a pass from me. What ever happened to plain old text words and static images?

This is by design, if undesirable. The skin sections were designed to fit properly given the thermal expansion at operational speed. At "room temperature", there are gaps.

Comparable, but the defining spec is principally a strength and condition spec, not an alloy spec.

I was well aware of the SR71 published specs, but was still caught off guard by its sheer length when I finally saw one at the McMinnville, OR, museum a few years ago.

Also, while the top speed...