The Shop > Tools
C3 mini lathe bed and gibs
sbwhart:
Hi 28ten
What loco are the wheels off? :- they look nice casting as well.
Cheers
Stew
28ten:
The turned wheels are off a GWR 2-6-2 45xx and the unturned castings are for a Dean goods. A chap called Alan Harris makes them and they are superb, the only drawback being the cost... about £18 each :bugeye: .
I could do a step by step photo account when the banana has been straightened. it is a fairly straightforward process (it must be if I can manage it!) but it does require a light touch. the trickiest part is finishing the back when you have to hold the casting by the tapered wheel tread, this is where the soft jaws come into their own.
CrewCab:
--- Quote from: 28ten on August 02, 2009, 09:58:54 AM ---the trickiest part is finishing the back when you have to hold the casting by the tapered wheel tread, this is where the soft jaws come into their own.
--- End quote ---
That's what was intriguing me, do you take a light skim off the back to remove the infill between the spokes :scratch:
Cracking job btw :thumbup:
CC
28ten:
--- Quote from: CrewCab on August 02, 2009, 10:19:36 AM ---
--- Quote from: 28ten on August 02, 2009, 09:58:54 AM ---the trickiest part is finishing the back when you have to hold the casting by the tapered wheel tread, this is where the soft jaws come into their own.
--- End quote ---
That's what was intriguing me, do you take a light skim off the back to remove the infill between the spokes :scratch:
Cracking job btw :thumbup:
CC
--- End quote ---
after turning the tread and drilling and reaming for the axle, the casting is transfered to the vice and the spigot is sawn off, then mount in the soft jaws and skim the back until the correct depth is achieved, which should expose the spokes. I then take another 20 thou off the spokes, but not the tread, to allow some clearance for frame detail hornblocks etc. obviously the spokes are very fragile so gently does it :D i have never broken a spoke but I have ruined a tread when it wasn't quite tight in the chuck :bang:
I think It's a very different method to turning large scale castings
CrewCab:
Thanks 28T, seems like it's a steady job :bow:
CC
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