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Tullygrainey last won the day on June 1
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Alan's grubby little shunters thread
Tullygrainey replied to Tullygrainey's topic in British Outline Modelling
More Hunslett. The boiler came pre-rolled and also had a cutaway to clear the gearbox/motor. It just needed tightened and seamed. Adding the smokebox was the usual struggle to get sufficient heat into the job. The front sandboxes are complicated little items but BluTack and brass rods held everything together for soldering. The rods were then trimmed back. High Level Minispinner gearbox checked for any glitches. Worm gear was fouling the final drive cog causing clicketty running so it got moved up the motor shaft a fraction which cured the problem. Smooth as silk now. Not sure how much welly these little can motors have but we'll soon see. Crankpins fitted to wheels and for once I think I got them all in straight. It's worth spending time on these, countersinking the hole at the back of the wheel and thread-locking the pins. I've had crankpins wind themselves out before now, meaning the wheels had to come off again to fix it. The axle holes in the wheels also get countersunk and the axle ends chamfered before the GW wheel press does the job of fitting and quartering the wheels. What a brilliant device! Rods on and a little reaming of the holes to get rid of tight spots. Rolls freely under finger power. Another bridge crossed! Lots of detail still to add but it's beginning to look like a loco. The tanks are full of lead. The boiler is just trial fitted for now. I'll have to confront pickups soon Alan -
I didn't know about the sugar trick but I tried it on the current build. Seems to work well. Certainly gets into corners the old toothbrush can't reach! Sweet talking my way to a clean machine..
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Clogherhead - A GNR(I) Seaside Terminus
Tullygrainey replied to Patrick Davey's topic in Irish Model Layouts
Ah that’s a puzzle solved! I was struggling to make sense of the 2 pics together -
Clogherhead - A GNR(I) Seaside Terminus
Tullygrainey replied to Patrick Davey's topic in Irish Model Layouts
A busy spot indeed. Looking very fine Patrick. We don’t often get a view of the road side of the station building. -
Alan's grubby little shunters thread
Tullygrainey replied to Tullygrainey's topic in British Outline Modelling
What's the location for the ones above? The road vehicles in that last one also caught my eye - there seems to be a line-up of MGBs and/or Midgets. -
Alan's grubby little shunters thread
Tullygrainey replied to Tullygrainey's topic in British Outline Modelling
I do believe it is. Thanks for sourcing the photos. -
Alan's grubby little shunters thread
Tullygrainey replied to Tullygrainey's topic in British Outline Modelling
Some progress with the Hunslett. I've shunted the chassis into a siding for a bit and done some work on the superstructure to get a better idea of how the gearbox will fit. Or not. Running plate first... This little beastie has a lot of rivets which took a while to press out. The larger ones on the cab were done by hand-feeding the etches into my trusty GW Models rivet press. For the small, tightly spaced ones on the tanks, I used a centre punch, probably my most versatile tool. It also gets used to scribe lines, scribe stonework into DAS clay and, now and again, to centre punch metal for drilling The usual tricky edge to edge soldering to get the cab erected. However, the bits are tabbed into slots in the running plate which is a real help in keeping things square. Beginning to look the part. The kit provides quite a lot of detail for the cab interior. Deciding in what order to add things and getting it all into place was a challenge, with all the usual elements of bad language, burnt fingertips and solder in all the wrong places.... ... but got there in the end. On my tidy, well laid out workbench. A place for everything and everything out of place. Boiler next. Alan -
Alan's grubby little shunters thread
Tullygrainey replied to Tullygrainey's topic in British Outline Modelling
Getting the hornblocks in the right place using the coupling rods as jigs. Half way through the job. Trial fitting the compensation beam And it all sits level. Yay! Ready for a clean-up and some paint -
Alan's grubby little shunters thread
Tullygrainey replied to Tullygrainey's topic in British Outline Modelling
No Patrick. Without the beam, the bearings would just ride up to the top of their travel in the hornguides under the weight of the loco and the loco wouldn't sit level. In the case of this chassis which has the fixed axle at the back, it would sit nose down. When stationary, the beam holds the two floating axles at the same height as the fixed axle but because it can rock around its central pivot, it also allows the wheels to move up and down and maintain good contact with the track on the move, hence compensating for any undulations. As one wheel moves up over a bump its partner at the other end of the beam moves down to stay in contact with the track. On a rigid chassis, one wheel going over a bump will lift other wheels off the track as it does so with detrimental effects on electrical continuity. Hope that makes some sort of sense. It's hard to describe. It's actually based on the principle of the three legged stool which never rocks because all the legs are always in contact with the ground no matter how irregular. In this compensated chassis, the three 'legs' are the 2 bearings of the fixed axle and the fixed pivot of the beam. Here endeth the tutorial! Cheers -
Alan's grubby little shunters thread
Tullygrainey replied to Tullygrainey's topic in British Outline Modelling
More Hunslett 0-6-0T. Compensation beam reamed for a bit of 0.7mm ID brass tube which will fit between the frames and pivot on a length of 0.7mm brass rod. One of the chassis spacers needed a bit cut out of it to clear the compensation beam Tabs and slots on the frames and spacers made the job of erecting the chassis easier. Soldered up on a sheet of glass to help keep it square and reduce the chances of ending up with a warped chassis. Bearings soldered in for the fixed axle. Frames, hornblocks (from High Level), compensation beam and coupling rods. All the ingredients for a compensated chassis. Bad light stopped play. More soon. Alan -
Alan's grubby little shunters thread
Tullygrainey replied to Tullygrainey's topic in British Outline Modelling
And I hope you won! Go for it JB. No pain, no gain -
Alan's grubby little shunters thread
Tullygrainey replied to Tullygrainey's topic in British Outline Modelling
Another Hunslett shunter on the bench, an 0-6-0 side tank from CSP Models this time. Like the Hawthorn Leslie that began this thread, it's a 4mm version of a former Agenoria 7mm kit. Superstructure in brass with some very fine lost wax brass castings, chassis in nickel silver. Everything needed to build the kit is here which saves shopping around - various gauges of wire and rod, handrail knobs, even copper clad strip for pickups. Couldn't ask for more. Wheels from Gibson, gearbox from High Level. The supplied motor looks like ones I've seen on the Tramfabriek website. Gearbox is a Minispinner+, a recent addition to the range and a new one on me. It's a cut down version of High Level's RoadRunner Compact+ which takes up even less space. There are two sets of frames and two sets of coupling rods to choose from, allowing different versions to be built. Just as well because I destroyed one of the rods (broke an end off - does this sound familiar?) while soldering up the laminations so had to use the other set. Managed to get those done without further mishap. The instructions describe a rigid chassis with drive to the middle axle but I'm building it compensated with drive to a fixed rear axle and hornblocks on the other two. The frames have half-etched lines to help get the cutouts in the right place. A compensation beam will be needed so that's been made from two thicknesses of scrap nickel silver etch. With its edge touching the two axles, a pivot point is drilled through it and into the frames. Frames ready for assembly and the compensation beam tidied up. Enough for one day. More soon. Alan -
Clogherhead - A GNR(I) Seaside Terminus
Tullygrainey replied to Patrick Davey's topic in Irish Model Layouts
I couldn't possibly comment -
Clogherhead - A GNR(I) Seaside Terminus
Tullygrainey replied to Patrick Davey's topic in Irish Model Layouts
Looking good! Magic too. Goes by itself. No crew, no coal -
Kilmore had an outing to the Ulster Model Railway Club exhibition at Dundonald High School this weekend. Very enjoyable two days. Many thanks to the UMRC for a well organised show. The new venue seemed to work well. I've posted some photographs in the 'What's On' section. Thanks as always to Kieran Lagan for sharing running duties. Between us we managed to keep trains moving throughout the 2 days without any major dramas. The odd derailment and a few decoupling moments were about the extent of it. We're still getting the hang of the Gaugemaster Infinity controller which didn't help us by refusing to power up first thing on the second day and then wiping the loco roster from its memory when it did. Operator error maybe. However the BlueTooth did mean we could operate the layout from some nearby soft chairs when the oul legs began to give out. IMG_5619.MOV
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