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| Finishing off a 5" Gauge Simplex Loco |
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| sbwhart:
I decided some time ago that the mabel loco I'm building would not suite my needs so thats bin put under the bench to be finished off some other time. I started to look arround for a completed or a nearly running 5" loco to buy, and came across this one. Its a Aupper Simplex to Nigel Evans design with a Belper Boiler its a very popular loco simple to build with a good performance, ther's about 5 that run regularly at our club. Don't you Tim. I know your lerking :lol: Its about 90% complete but what sealed it was it has a boiler cirtificate tested to 200 psi for running at 100 psi, it was built by a guy who unable to complete it due to ill health, the price was right so i took it on. Briefly it needs most of the plumbing work doing, including a boiler feed pump, a lubricator, and a good tidy up, I wan't to try and get it in steam for the boiler steaming test by the end of summer if i can, then I'll do the tidying up work including a repaint through the winter. First job is to make the feed pump. you can get a casting for it but I dropped on a chunk of bronze so first job was to square it up and mark the key holes out. Then centre it up under the mill zero the DRO and set the vice stop, then rough drill out for the bore and finish off with a 14mm reamer, drill the cover holes and the bypass hole. Flip it round in the vice and drill the cover holes at the other end. Put it on its side and drill and tap for a plug and the outlet hole. Onto the other side and drill and tap for the inlet hole, the bottom of the hole has four 2mm holes drilled on a pitch circle in the bottom. Then over onto the the tapping stand to thread the rest of the holes. Now to check out where it fits :Doh: the streacher it fits on should be 1 1/8" wide for some reason the guy made it 1 1/2" wide and no holes are drilled, its a complete strip down to get the streacher out nothing for it but to change the fixing. but thats for another day. Stew |
| NickG:
Hi Stew, looks a nice model - I always thought the same about Mabel, it may lack power, boiler capacity and traction. Really want to get mine sorted one day but it seems a million miles away at the moment, just don't seem to have the time or will do do anything! Simplex on the other hand is a well proven passenger hauler - the ones i've driven have been very powerful and steamed very well. Nick |
| engjas:
Hello Stuart Good work on the pump. For the sake of others who may be searching for the Super Simplex locomotive design I've just rechecked my aged memory with the index for "Model Engineer" and find that it was designed and described by Martin Evans who was at one time Editor of "Model Engineer" rather than Neville Evens as you credited in an earlier post. An easy (Freudian?) slip to make particularly as Neville Evans also a designed and described a number of miniature Locomotives in Model Engineer. best wishes for the successful completion of Super Simplex. John |
| Rob.Wilson:
Stew ,she Looks a well built loco :thumbup: I will be taking notes :) Rob |
| sbwhart:
--- Quote from: engjas on June 18, 2012, 05:33:50 AM ---Hello Stuart Good work on the pump. For the sake of others who may be searching for the Super Simplex locomotive design I've just rechecked my aged memory with the index for "Model Engineer" and find that it was designed and described by Martin Evans who was at one time Editor of "Model Engineer" rather than Neville Evens as you credited in an earlier post. An easy (Freudian?) slip to make particularly as Neville Evans also a designed and described a number of miniature Locomotives in Model Engineer. best wishes for the successful completion of Super Simplex. John --- End quote --- Hi John :Doh: yes you're correct it should be Martin Evans don't know were i got the Neville from Stew |
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