Author Topic: A Wallaby of my own.  (Read 189239 times)

Offline Craig DeShong

  • Full Member
  • ****
  • Posts: 423
  • Raleigh,NC. USA
    • Lauson small engines
Re: A Wallaby of my own.
« Reply #1110 on: February 07, 2019, 08:43:10 PM »
Looks good Dave  :ThumbsUp:

My conn rods will be next, once I get the cylinder sorted out in the Frisco.  I'll be more than happy if they turn out like yours :cheers:
Craig

Offline steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10100
  • Central Massachusetts, USA
Re: A Wallaby of my own.
« Reply #1111 on: February 07, 2019, 09:32:54 PM »
Thanks Craig, and thanks for looking in....good luck with that cylinder....And make sure you get what ever revised print set there is....just in case there's more problems...
Dave
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10100
  • Central Massachusetts, USA
Re: A Wallaby of my own.
« Reply #1112 on: February 08, 2019, 09:55:07 PM »
Final weekend before the show..

Chamfer con rod bearing cap
counter bore the screw holes in conrods
cut a key way in the crank drive gear
make a nut to hole the gear on
......We should then have a "round and round" assembly.....

After that it's piston rings I think.

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

Offline b.lindsey

  • Global Moderator
  • Full Member
  • *****
  • Posts: 13140
  • Dallas, NC, USA
    • Workbench-Miniatures
Re: A Wallaby of my own.
« Reply #1113 on: February 08, 2019, 09:59:49 PM »
What else are you taking to the show? Not that you have to, just asking  :)

Bill

Offline steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10100
  • Central Massachusetts, USA
Re: A Wallaby of my own.
« Reply #1114 on: February 08, 2019, 10:03:37 PM »
What else are you taking to the show? Not that you have to, just asking  :)

Bill

Well I have a Rudy's "not so little Workhorse" that's a 1.5X scale model of his design, that I usually hook up and let run for the day...
I'm going to leave my boat engine home....too damn heavy to carry up stairs this year.

My son is thinking about a model airplane exibit

My Daughter is thinking about some of her art....

I guess we'll see who brings what....I'm not holding my breath!


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

Offline Tennessee Whiskey

  • Full Member
  • *****
  • Posts: 3742
  • Springfield, Tennessee. USA
Re: A Wallaby of my own.
« Reply #1115 on: February 08, 2019, 11:47:14 PM »
William should put on an RC driving seminar/exhibition.  :stickpoke:  Y’all have fun

Cletus

Offline b.lindsey

  • Global Moderator
  • Full Member
  • *****
  • Posts: 13140
  • Dallas, NC, USA
    • Workbench-Miniatures
Re: A Wallaby of my own.
« Reply #1116 on: February 09, 2019, 12:38:27 AM »
That's even better, should be a great family thing!!

Bill

Offline steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10100
  • Central Massachusetts, USA
Re: A Wallaby of my own.
« Reply #1117 on: February 10, 2019, 01:27:39 PM »
Rods are modified, and I added the pin hole for the bearing retaining pin....I'll need to make that and install

Need wrist pins and pads, and I have the sump mounted in the mill.  It needs the drain plug and the oil strainer hole machined.  I've already cleared the extra material to clear the rods.  There is some pattern  distortion, but it's only cosmetic, and only when viewed from the bottom of the engine....so I'll not concern myself too much about it.

Lets just get it done.

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

Offline steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10100
  • Central Massachusetts, USA
Re: A Wallaby of my own.
« Reply #1118 on: February 11, 2019, 12:00:16 AM »
OK  I made wrist pins, wrist pin bushings, chamfered the con rod caps, and clearanced the inside of the sump....It goes up and down and round and round!

OK....The Sump casting

This casting has issues.   It's not deep enough as compared to print, but the walls are very thick, so I had to clearance out a lot of aluminum.  Additionally, the sump pick up as designed wont fit, it will get hit by the crank con rods, so I'll need to redesign the sump pick up screen accordingly   I think that will be alright....I can work though that.

the back of the sump has a boo boo I made.   It needs the material put on machine....In this case, I'm going to mill back the flange around the rear seal and splice in a new piece of aluminum to correct that part anyway.

I'm going to have to be very motivated to take on any more castings from anyone....I've just been annoyed left and right with threads that tear out, porosity, pattern issues.   I'm going bar stock from here on in..on all of it.

In any case..I think I'll have something to twirl next Saturday anyway.....

Don't have any pics yet....give me a bit...

Dave
« Last Edit: February 11, 2019, 12:05:26 AM by steamer »
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Kim

  • Global Moderator
  • Full Member
  • *****
  • Posts: 3463
  • Portland, Oregon, USA
Re: A Wallaby of my own.
« Reply #1119 on: February 11, 2019, 05:14:11 AM »
Looking forward to seeing the pics! :)

Sorry you're having such a time with your castings.  Are they all this bad?  Or just the set you got?  A lot of people seem to love them, though I haven't caught the casting bug yet...

Hope you can work it all out for your Wallaby, Dave!
Kim

Offline steamer

  • Global Moderator
  • Full Member
  • *****
  • Posts: 10100
  • Central Massachusetts, USA
Re: A Wallaby of my own.
« Reply #1120 on: February 11, 2019, 10:49:49 AM »
Well, the boo boo in the back of it is mine....is what it is, itll clean up once repaired.

The oil pick up boss is a 1/4" out of position...I moved it down as far as I could, and I'll adjust the shape of the new pick up screen accordingly..

Dave
« Last Edit: February 11, 2019, 11:02:08 AM by steamer »
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Online Jo

  • Administrator
  • Full Member
  • *****
  • Posts: 12193
  • Hampshire, england.
Re: A Wallaby of my own.
« Reply #1121 on: February 11, 2019, 12:48:18 PM »
I'm going to have to be very motivated to take on any more castings from anyone....I've just been annoyed left and right with threads that tear out, porosity, pattern issues.   I'm going bar stock from here on in..on all of it.

Have I ever mentioned the need to fondle castings before starting work on them? Not just individually but as a collective to make sure you get the best out of them  :).

I have Surus has a set of Wallaby castings in his collection I will have to see if I am allowed to fondle them to see if it is just a poor set you have Dave. Do you know where they came from?

Jo
Usus est optimum magister

Online Jo

  • Administrator
  • Full Member
  • *****
  • Posts: 12193
  • Hampshire, england.
Re: A Wallaby of my own.
« Reply #1122 on: February 11, 2019, 02:48:14 PM »
As you maybe able to tell I am not allowed these castings yet  ::)

These are close to spot on measurement Dave, yours seem to have a rougher sand finish and be thicker  :noidea: I believe mine came from Hemmingway http://www.hemingwaykits.com/acatalog/The_Wallaby___Edgar_T_Westbury.html he would have originally got the patterns from someone else

Eric has got a couple of rather nice solid bronze ones that I have been trying to acquire off him (and a set for a bronze Mastiff  :naughty: )

Jo
Usus est optimum magister

Offline b.lindsey

  • Global Moderator
  • Full Member
  • *****
  • Posts: 13140
  • Dallas, NC, USA
    • Workbench-Miniatures
Re: A Wallaby of my own.
« Reply #1123 on: February 11, 2019, 03:54:41 PM »
Surus, certainly doesn't let those casting get out of his sight does he  :o

Bill

Offline crueby

  • Full Member
  • *****
  • Posts: 8181
  • Rochester NY
Re: A Wallaby of my own.
« Reply #1124 on: February 11, 2019, 04:41:41 PM »
Surus, certainly doesn't let those casting get out of his sight does he  :o

Bill
And looks like he has a great work area in his office there too!