waterloo traction engine .29 scale

Help Support HMEM:

MIKE4444

Member
Joined
Nov 11, 2020
Messages
16
Reaction score
4
Location
BRISBANE , AUSTRALIA
Thanks
I have bin around and running steam engines for over 45 years my dad and his dad were to we still own my grandfathers engine
I was certified to weld high pressure pipe up to 40 inches in diameter
Let that laps did not use it any more
I have built three other boilers 2 for the Sawyer Massey I built one for a goodision I made .......and yes you are more then right design right and know what you are doing around steam boilers
Thanks
Todd
Hi am new at Steam Traction Engines , Very interested in building a small steam engine, Have looked on the net , but No plans for a simple small Loco or Traction engine, plenty of scratch models , but no plans , looked at the Cracker , Dribbler engines, etc...as i am new can you help as to a simple , say around 5 inches long or smaller to start of with, email me at mjjhh4444@yahoo.com thank you MIKE
 

Peter Twissell

Well-Known Member
HMEM Supporter
Joined
Nov 13, 2019
Messages
299
Reaction score
136
Location
United Kingdom
Unless you have a very large rotary table, the 'old way' is the only way to achieve any rigidity in the setup at such a large radius.
 

mnay

Well-Known Member
Joined
Sep 24, 2009
Messages
261
Reaction score
102
Beautiful work. I have been afraid to tackle cast iron. I am impressed with your castings.
 

photopro

Member
Joined
Aug 6, 2020
Messages
16
Reaction score
9
Location
Spring, Tx
Here is a method I use to mill large radius's. This particular setup is for putting a very large radius inside the axle box on the 1.6" scale Mikado locomotive I built some years ago but will work for smaller parts also. The radius was required so the ends of the axles can independently move up and down, depending on track conditions, without binding.

The basic setup is to use a heavy bar to support the workpiece and provide it with a fixed pivot on one end and a slotted pivot on the other end where the rotary table is located. The whole setup is mounted on the mill table of course. The slot allows the rotary table to move without binding. The radius is determined solely by the distance from the fixed pivot to the cutter, not the size of the rotary table.
How you mount the workpiece to the bar is up to you.

Doug
radius 1.jpgradius 2.jpgradius 3.jpgradius 4.jpg
 

Latest posts

Top