Author Topic: building the Frisco Standard Model  (Read 4752 times)

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 9917
  • Central Massachusetts, USA
Re: building the Frisco Standard Model
« Reply #45 on: January 08, 2019, 10:02:14 PM »
I like gluing in supports between the webs im not machining to keep the crank from flexing.

You just wave a torch at it later on and the cyano lets go.  Clean up with Acetone.

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline crueby

  • Full Member
  • *****
  • Posts: 7712
  • Rochester NY
Re: building the Frisco Standard Model
« Reply #46 on: January 08, 2019, 10:12:04 PM »
I like gluing in supports between the webs im not machining to keep the crank from flexing.

You just wave a torch at it later on and the cyano lets go.  Clean up with Acetone.

Dave
Superglue will hold the packing rods well enough to handle spinning on the lathe?

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 9917
  • Central Massachusetts, USA
Re: building the Frisco Standard Model
« Reply #47 on: January 08, 2019, 10:16:02 PM »
I like gluing in supports between the webs im not machining to keep the crank from flexing.

You just wave a torch at it later on and the cyano lets go.  Clean up with Acetone.

Dave
Superglue will hold the packing rods well enough to handle spinning on the lathe?


Yup!!!   Think about it, when it's between centers, the lathe is squeezing on the packing.   the glue just keeps it there.  I size the packing pieces and cut them from bar stock and face to length.

Dave

"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Art K

  • Full Member
  • ****
  • Posts: 1006
  • Madison, Wisconsin USA
Re: building the Frisco Standard Model
« Reply #48 on: January 09, 2019, 02:39:08 AM »
Craig,
You're making good progress. Some great ideas guys, I think I'll file them away. I think when I made the Upshur I ground a 3/8 nut to fit and let the center's pressure hold it together. Val was an overhung crank.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Online 10KPete

  • Full Member
  • ****
  • Posts: 1528
  • Nordland, WA, USA
Re: building the Frisco Standard Model
« Reply #49 on: January 09, 2019, 03:30:40 AM »
Dang, that's lookin' real nice! Tell that ol' leg to take a break so you can get in more shop time!

 :DrinkPint:

Pete
Craftsman, Tinkerer, Curious Person.
Retired, finally!
SB 10K lathe, Benchmaster mill. And stuff.

Offline crueby

  • Full Member
  • *****
  • Posts: 7712
  • Rochester NY
Re: building the Frisco Standard Model
« Reply #50 on: January 09, 2019, 03:38:27 AM »
I like gluing in supports between the webs im not machining to keep the crank from flexing.

You just wave a torch at it later on and the cyano lets go.  Clean up with Acetone.

Dave
Superglue will hold the packing rods well enough to handle spinning on the lathe?


Yup!!!   Think about it, when it's between centers, the lathe is squeezing on the packing.   the glue just keeps it there.  I size the packing pieces and cut them from bar stock and face to length.

Dave
Ah, good point! Physics works!   :ThumbsUp:

Offline Craig DeShong

  • Full Member
  • ****
  • Posts: 378
  • Raleigh,NC. USA
    • Lauson small engines
Re: building the Frisco Standard Model
« Reply #51 on: January 10, 2019, 01:21:42 AM »
Dave, Chris, Art, Pete; thanks for your comments.  Iíll give you another option that I use for temporarily fastening the support between the throw webs for supportÖ hot glue.  Iíve used it numerous times, easy to install and cleanup is a breeze.

UPS usually delivers to residences in my neighborhood at dark-30 but today the UPS delivery showed up mid-afternoon, so I got some work in after all.  That probably was as well because tomorrow is supposed to be CÖ..OÖ..LÖ..D and there probably wonít be any shop time.

After grinding this Ĺ inch shank down to 3/8th inch I got busy finishing the throw.  Didnít take any pictures, so after I was all done, I caught-up with the photos, youíll get the idea.

Cleaning up the left (center) throw



  Cleaning up the right throw



Working down to the final diameter



A little final sanding to remove a few tool marks



Next Iíll move on to the left-hand throw.
« Last Edit: February 08, 2019, 01:09:27 AM by Craig DeShong »
Craig

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 9917
  • Central Massachusetts, USA
Re: building the Frisco Standard Model
« Reply #52 on: January 10, 2019, 01:40:39 AM »
Looks awesome!!   Thanks for the tip   ill try that next time.

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline crueby

  • Full Member
  • *****
  • Posts: 7712
  • Rochester NY
Re: building the Frisco Standard Model
« Reply #53 on: January 10, 2019, 01:46:43 AM »
Very well done, that is quite a big part!


 :popcorn:

Offline Craig DeShong

  • Full Member
  • ****
  • Posts: 378
  • Raleigh,NC. USA
    • Lauson small engines
Re: building the Frisco Standard Model
« Reply #54 on: January 10, 2019, 10:14:16 PM »
Dave, Chris; thanks for stopping by.  It is a large piece to be swinging in the lathe.  Iíll be glad when I have these throws complete and I can be working outside instead of inside the throws.  One little lapse of concentration and have the throw come around and strike the tooling and UGLY things will happen. :hammerbash:

I braved the cold North Carolina weather (yea- you guys in Canada are laughing yourself silly now :lolb:) and worked on the other throw.   It was pretty much the same procedure.

Here Iím milling out between the throw shoulders (stuck to the way I did the first one- if it ainít broke, donít fix it)



Finishing up on the mill

 
And the lathe work

« Last Edit: February 08, 2019, 01:13:20 AM by Craig DeShong »
Craig

Offline b.lindsey

  • Global Moderator
  • Full Member
  • *****
  • Posts: 12850
  • Dallas, NC, USA
    • Workbench-Miniatures
Re: building the Frisco Standard Model
« Reply #55 on: January 10, 2019, 10:46:03 PM »
Coming along well Craig!! Yes the temps were rather cool today. The shop heat pump is sure helping though.

Bill

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 9917
  • Central Massachusetts, USA
Re: building the Frisco Standard Model
« Reply #56 on: January 10, 2019, 10:48:33 PM »
Looking great Craig....going to single digits F here tonight...without the wind chill

Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Brian Rupnow

  • Full Member
  • *****
  • Posts: 4673
  • Barrie, Ontario Canada
Re: building the Frisco Standard Model
« Reply #57 on: January 10, 2019, 11:26:55 PM »
Machining crankshafts makes your old heart go "pitter-patter", doesn't it!!! It was -28 C here today with the wind-chill. I had to go out and buy a new electric drill and get a different intake valve spring, and it certainly wasn't bikini weather.

Online steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 9917
  • Central Massachusetts, USA
Re: building the Frisco Standard Model
« Reply #58 on: January 11, 2019, 12:08:04 AM »
Machining crankshafts makes your old heart go "pitter-patter", doesn't it!!! It was -28 C here today with the wind-chill. I had to go out and buy a new electric drill and get a different intake valve spring, and it certainly wasn't bikini weather.
Machining crankshafts makes your old heart go "pitter-patter", doesn't it!!! It was -28 C here today with the wind-chill. I had to go out and buy a new electric drill and get a different intake valve spring, and it certainly wasn't bikini weather.

 8)
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Art K

  • Full Member
  • ****
  • Posts: 1006
  • Madison, Wisconsin USA
Re: building the Frisco Standard Model
« Reply #59 on: January 11, 2019, 02:56:39 AM »
Craig,
I have to ask, how far out is that lathe tool sticking out. It looks to be about 2 inches. The one lathe tool I have for that sort of thing I used on the cooling fins on Val, I needed .720 depth of cut to clear the corners of the cylinder, clears the tool by .03". A friend used the wire EDM to cut it .5 tall .25 wide blank. I should design on with radiused corners relieved in the center, for turning crank throws. Then when he has time on the machine he can make me a new one to use on a crankshaft.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King