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posted: 12 Dec 2016 15:12 from: Richard Spratt
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We (the Scalefour Teesside AG) want to relay the right hand entrance into the fiddle yard and at the same time take the opportunity to improve the track layout. There are 2 main running lines that can enter or exit from any of the 12 fiddle yard roads and a goods only loop which needs to be able to be entered from the inner most pair of fiddle yard roads plus maybe some others if possible. The top right baseboard needs a pair of crossovers and point to the loop. So far I've drawn a facing crossover and for the trailing crossover incorporated a single slip. But I'm concerned that the single slip with switched K will be difficult to build. So I'd like some suggestions how to get rid of the single slip. Ideally the minimum radius is 48". |
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Attachment: attach_2351_2947_new_26_foot_awrhyllg_2016_12_11_2227_21.box 247 | |||
posted: 12 Dec 2016 15:13 from: Richard Spratt
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Shape file with some of the baseboards |
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Attachment: attach_2352_2947_new_26_foot_awrhyllg_16_12_12_1458_21.bgs 235 | |||
posted: 13 Dec 2016 01:07 from: Martin Wynne
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Richard Spratt wrote:The top right baseboard needs a pair of crossovers and point to the loop. So far I've drawn a facing crossover and for the trailing crossover incorporated a single slip. But I'm concerned that the single slip with switched K will be difficult to build. So I'd like some suggestions how to get rid of the single slip. Ideally the minimum radius is 48".Hi Richard, I don't see the problem? Switched K-crossings make a slip 10 times easier to build (no K-crossing check rails), especially in a fiddle yard where you don't have to match any prototype appearance. You just need to fork out for 2 extra point motors. Unless I'm missing something, your design looks fine? I have quickly added the double slip roads for you. I staggered the slip switches to make it easier to create an opening clearance for them. Outside slip switches are 1:40. Inside slip switches are 1:32. Group .box file attached. regards, Martin. |
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Attachment: attach_2355_2947_group_2016_12_13_0115_28.box 251 | |||
posted: 13 Dec 2016 11:24 from: Tony W
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Hi Richard. Your plan also looks fine to me. I have built several switched diamonds over the years and as Martin has stated found them easier to build than fixed obtuse crossings, as there are fewer rails to align in that critical area. I think you are being overly concerned. It is possible to operate both sets of blades from one point motor via a reversing lever. Regards Tony W. |
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