¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

Re: Feed rate increase and crazy thread milling, just for fun


 

I've gotta get some sleep, but once I do, I'm going back and downloading all the photos you've sent to a folder of it's own for study. My weekend is kinda jacked up, as my shift is changing slightly. I was working four 10-hour days, 10pm to 8:30 am, for some months, then they changed it to four 9-hour days, 9pm-6:30am and a 4-hour half-day , 8pm-12am, on Fridays, but that ended yesterday. Tomorrow, we go to five 8-hour days, 10pm-6:30am. And another dollar an hour for a shift differential. Like everything, change is hard, but I'll get used to it. Though I loved the 3-day weekends, and loved the 2.5-day weekends only a little less. I'll be happy with a little more pay, and only a two-day weekend like everyone else. This may make finishing my class easier, too. I've got a dozen or so projects left for the class, and then a brush-up so I can take some of the NIMS certification tests. The school will now pay for as many of them as you want to take. So I might go for everything I think I can pass in the manual machining certifications. I've never worried about certifications before, but I had a really hard time finding a job after my last career fizzled. Might be good to have something that's newer than 20 years old and possibly relevant to current requirements. ;)

Bill in OKC

On Saturday, January 12, 2019, 5:26:08 PM CST, Dave Matticks <dpm100@...> wrote:


Bill,?

Look where all the gears used to be feeding the gearbox, took "em all off and put the chain/sprocket stuff on. Way cheaper than new gears for kind of a 4 off part! Worked perfect too.

I made the milling attachment using a spindle from an old Clausing mill on a custom mount attached to the compound so I could swing it at the required angle, radius at the root was ball endmill.?

Once you get past a little thinking about how to do this it's fun!

Dave

On January 12, 2019 at 5:12 PM "Bill in OKC too via Groups.Io" <wmrmeyers@...> wrote:

?
Saw the gear motor, and recognized it. Didn't see the chain drive. Was looking at some files I recovered off an older computer drive, for cutting gears on a shaper, with a wire wrapped around a pitch-circle wheel to match the gear being cut. The shaper has a rack-tooth shaped cutter. Sort of got that, but I think while it's similar, yours is more complicated. I make my living fixing machines, so it is neat to learn new stuff!

Thanks!

Bill in OKC

On Saturday, January 12, 2019, 4:08:58 PM CST, Dave Matticks <dpm100@...> wrote:


I know it's not Craftsman or Atlas but a little food for thought.

You can really do a lot with a little if necessary.

Note the gear motor coupled to the drive motor and chain drive with compound sprockets along with the milling attachment.?

A big CNC lathe with live tooling would have eaten this right up but... I only needed 2 each.

Dave

On January 12, 2019 at 3:49 PM Dave Matticks <dpm100@...> wrote:

Hope I can find the pics of part of my never ending project from a few years ago.
Needed to cut 1" pitch on a 4" diameter part 24" long. Here's the kicker, 2" root diameter. Don't remember the angle or radius at the root but you get a sense of the process.
Single point was NG, milling was the only option. 2 pcs. 303 SS and 2 pcs. Delrin. 1 each left hand and right hand.
Not regular screw threads. Feed screws for pleated filter media to glue the ribbons on.
I love a little challenge once in awhile.
Dave

Join [email protected] to automatically receive all group messages.