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4101 Dubs 0-4-0Tcrane project part 2


sleeper

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Some of you who've been following this blog will remember me having problems with uploading photos due to the post getting too full, it's why I only post a few photos with a bit of text, because it becomes a nightmare once the thing crashes, so in this case less is more, if you get my drift.

 

So where was I? Once all the 'rivets' had been punched I stuck the 0.25mm layer on to the 1mm layer. Some will have noticed that in the last picture the layers are marked 0.5mm. Originally I had planned to use 0.5mm but I subsequently thought it would be too flimsy and so cut out four of them and laminated them together, making 1mm. I made a box structure between the two sides and added the sides, while the glue on this was setting thoroughly I started on the top pulley wheel.

I cut two brass discs 5mm in diameter from a scrap of brass etch, soldered a 3mm wide brass washer to them then soldered both halves together. This I drilled through with an .08 drill and pushed a short length of 0.6mm brass wire through. I drilled the jib 5mm from the end with an 0.8mm drill and threaded the wire through both sides. This was the top pulley, I added another brass washer each side fixed with superglue then cut the wire and filed flat. Surprise surprise the wheel still turned after gluing

The next thing was to reproduce the gear wheels on the sides of the jib. The Ideal would be to use a couple of gear wheels from a clock mechanism, you know the ones that spin back and forth, but after scouring Ebay I only came up with dealers offerings and 25grams of wheels at £5 cost with no guarantee I'd get the right thing seemed a little too chancy so I thought I'd have a go at making something :O :nono: . Hmm not for the faint hearted, they took nearly all day and I'm not sure they pass muster, the smaller one definitely isn't too good. To make them I cut a sliver off the end of a bit of 15mm copper tube, filing it to reduce the thickness further. Using a brass axle bush as a hub I soldered 4 lengths of brass wire on to it for the spokes and trimmed them to fit inside the copper 'ring'. All too fiddly! I kept dislodging the previously attached spokes when applying the iron but finally I got there. It's not too bad but up close it isn't good so it may well get changed yet.

I soldered on a short length of 1.9mm brass tube, drilled the side of the jib 2mm and inserted the assy the other half is a 1mm diameter brass nail/pin. that side was drilled 1mm and the nail entered into the tube and fixed with super glue, thus making a shaft for the gearwheel.

Enough of the chit chat, here's the pictures:-

 

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The start of construction fixing the sides to the base with the rest of the box section in the foreground

 

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The competed pulley wheel awaiting installation into the jib

 

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The larger of the two gear wheels in detail

 

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The top pulley fitted, the length of wire is just to prop up the end of the jib

 

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the weekends progress . see you in part three

 

cheers for now

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