Holy shit.

This is the shit about 20% of my youtube history consists of. Awesome.

Holyo-fuck! That is badass, cannot wait for the vid, thanks for posting this stuffs!

And video. Different part from pics but you get the idea. Also, more chatter so the chip is forming a little differently.


Roll turning.

sean: I run 1/2" tooling in my lathe, how about you?
bahurd: we run 2ft tooling....


For those interested, look up BOST machining on youtube. Specifically the ones where they machine cargo ship crankshafts. I remember one vid where they are drilling and thread milling for the bolt on counterweights. The thread was something like M72x6mm.

I've been in this business for quite a few years now and I'm in awe at the capabilities of machines today vs. 40 years ago. When I was an apprentice we spent days learning how to use abrasive cord polishing now die makers are pretty much gone away and die sinkers have taken their place. Course you still need to know how to write the program and the best CNC machinists I know actually started out turning handles on manual machines.

I have another customer who supplies all the mechanical archery releases to Cabelas. Everything is done in one chucking, from bar stock, on a sliding headstock machine. Pretty much a fully prismatic part made from round bar stock.


https://cimg8.ibsrv.net/gimg/www.mia...923f655727.png

I have a release just like that one.

That big lathe... awesome. It's almost the same size as my heavy 10.

...

We make our OHC finger followers from round bar stock/single setup.

http://www.jesel.com/valvetrain/imag..._esslinger.jpg

I made a sleeve once, and chucked it 4 times.

Modern 5+ axis machines are incredible.

I might be buying a haas cnc lathe. Maybe.

Think for a moment how many operations and different machines it would've taken to make those even 20 years ago.

To be fair they would have been made different 20 years ago for just that reason.

Small update. I have learned that these are 3 way valves :facepalm:, it vents to atmosphere. :squint:

Popped the vent cap off at lunch and placed it back on. Issue went away on my way to lunch. Going to grab some electronic cleaner before I start spending money.

One of my first projects when I started 11 years ago was to redo those so they could be done on a lathe. Before that it was a vertical mill with multiple setups.

EDIT: wow I found a pic of the old aluminum milled part, thanks google. A little lighter & stiffer, but required removal of camshafts for installation, which on a ford OHC required basically disassembly of most of the engine, which IIRC in a mustang required removal of the engine from the car. I made sure the updated steel versions could be installed with the factory tools, cause duh.
https://static1.squarespace.com/stat...71/JS0603B.jpg

I was reading through some of the old posts in this thread...

Abut 5 years ago, I was defending the fact that I wore a cheap Casio Databank watch, and lobbing moldy digital fruit at people who were fan-wanking over fancy analogue wristwatches because they were "stylish."

Today, I'm wearing a Danish-made Skägen, while all the cool kids are blathering about their trendy smartwatches and fitbits.

What's a watch?

--Ian

your cellphone

That's okay, I've got two Skagens. They're great.

Exactly.

I haven't worn a watch since I accidentally left my Citizen Eco-Drive in a car I traded in 7 years ago.

Yah. The last watch I owned was a Casio databank -- when it broke I realized that I really didn't need it any more, since I had the time and all the phone numbers I needed in the cell phone that carried around with me all the time anyway. That was somewhere around 1999...

--Ian

A watch is a fashion item more than a way to keep time. Especially a skagen or any other analog watch. I usually look at my phone for the time too but I still like wearing a nice watch when the situation calls for looking nice.