Finishing off a 5" Gauge Simplex Loco

Gallery, Projects and General > Project Logs

<< < (11/27) > >>

Deko:
Glad i could be of assistance in some way Stew :ddb: I see there is a new open day planned in October, while i know its not M.E. i could bring along the track and some rocker cover racers if they can find the space to set it up. Like we did at the car show, a small charge could be made to "rent a racer" in aid of the chosen charity. See what the powers that be say. :poke:

Cheers Dek :thumbup:

NickG:
Looking good Stew, laughing at the spring story but bet that was really annoying at the time! :lol:

sbwhart:

--- Quote from: Deko on September 20, 2012, 04:48:30 PM ---Glad i could be of assistance in some way Stew :ddb: I see there is a new open day planned in October, while i know its not M.E. i could bring along the track and some rocker cover racers if they can find the space to set it up. Like we did at the car show, a small charge could be made to "rent a racer" in aid of the chosen charity. See what the powers that be say. :poke:

Cheers Dek :thumbup:

--- End quote ---

The October day is being run by a medical charity Hernias of Africa or something like that, its a group of medics who ones a year go over to Africa set up a surgery in the bush and carry out hernia ops, the club are turning the track over to them and some of the guys are running their locos for them. Not quite sure who the powers to be are I'll make some discreat enquiries.

--- Quote ---Looking good Stew, laughing at the spring story but bet that was really annoying at the time!
--- End quote ---

You can say that Nick:- I was bloody livid, I have an habbit of setting myself a target for the day, i wanted to mod the lift table with a rotating engine assembly frame, but I spent such a long time looking for that spring I failed, still its there for another day.

Stew

sbwhart:
Well things havn't come to a standstill on this just a bit slow plus I had a thick.

Cleaned up the coupling rods as they were laser cut this just ment cleaning the hard scale off heat effected edge this was easiliy done with an old file then they were given a good going over with emery cloth.

Then after carfully measuring the axle centres set them up in the mill and using the DRO drill for the bearings at the correct centre distances.

With that done i had to make a jig from a chunk of ally to hold the rods on their side for thining them out and cutting the flute with a woodruff cutter.

Then using a slitting saw cut the tang for the tennon

Then cut the tennon in the other link.

Then made the phos bronze bushes sorry no pics of this just a simple turning job.

As I'd carfully made everything at the correct centers i was full of confidence that it was just a matter know of fitting the bearing and away we go NO i was wrong the darn thing locked up, checked everything ok all correct still locked up :scratch: this was the start of my thicky week I tried everything to try and get it to turn over opened out the bushes this worked but resulted in a very sloppy fit not happy with that measured and re measured swappped thing arround still no good.

Saturday morning came round without sucess and went to a club charity steam up, got talking to some of the wise old guys, "you have made the bushes excentric havn't you and made everything a lose fit":- "no i've made everything a good fit and concentric":- "well thats were you've gone wrong you should make the two outside bushes excentric and a lose fit crank pin, you then rotate the bushes in the rods until you get the sweet spot wher the loco turn over mark their position and fix them with some loctite retainer.

This morning up bright and early turned some bushes up with and 0.5mm off set fitted them as advised job done in three hours:--- you can't beat a bit of experience

:D :D :D

Thats it the loco is going away for a few monthe whilst I build the dake

Stew

Deko:
Nice one Stew, I knew you would get it sorted. :thumbup:

Cheers Dek.

Navigation

 Message Index

Go to full version