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Everything posted by billbedford
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DrDuncan's 3D workbench
billbedford replied to drduncan's topic in 3D Printing, Laser Cutting, CAD & CNC
What makes you think that? No RTR wagons have metal running gear. -
This one is obvious. The one on the left is red (or bauxite) because the body is darker than the roof, while the one on the right is grey with the body lighter than the roof.
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Scaling from a file drawn full size?
billbedford replied to bubbles2's topic in 3D Printing, Laser Cutting, CAD & CNC
It's because I'm designing models. I want them to work as models and know how they will be made and assembled before I start on the cosmetic bits. I find it much easier to work on drawings with a simple relationship to the dimensions specific to the manufacturing method. -
Scaling from a file drawn full size?
billbedford replied to bubbles2's topic in 3D Printing, Laser Cutting, CAD & CNC
Harder than what exactly? The "calculation" is simple mental arithmetic, Multiply the feet by 12 and add the inches. Though I realise this may come easier to those of us schooled before decimalisation. -
Scaling from a file drawn full size?
billbedford replied to bubbles2's topic in 3D Printing, Laser Cutting, CAD & CNC
... for the more mathematically challenged, draw your model at 12 mm to the foot, that is 1 mm to 1 inch. Then reduce your model to one-third or 33.333%. -
Neil's SDJR 3D Prints
billbedford replied to neilkirby's topic in 3D Printing, Laser Cutting, CAD & CNC
Those wavy handrails are due to the models not being allowed to properly dry between washing and curing. I would allow at least 24 hours for drying. -
I know a song about such things:
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What exactly do these figures represent? For instance, is the freight earned from goods carried in GER vehicles or earned by all vehicles using GER lines? It's known that fish wholesalers hired vans from several different companies, as well as horse boxes being hired. I suspect similar arrangements were made for perishables like fruit. I've not seen the financial details, so I can't comment on how they were reported. You may have to look at the RCH records to get an answer.
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The Locomotives of Boulton's siding
billbedford replied to pete_mcfarlane's topic in Pre-Grouping - Modelling & Prototype
Oh not it hasn't Oh yes it has Oh no it hasn't Oh yes it has . . . . -
Whatever the owner decided was the difference. Coal, in particular, is dirty and became ingrained into the wagon timbers so wagons that had been in the coal trade very long would have been avoided for other goods. Also, coal wagons commonly had a through plank above the door which would have dissuaded loaders from using them if there were any possible alternatives.
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It's a Dalek egg.
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Resin printing and bearings
billbedford replied to Thunderforge's topic in 3D Printing, Laser Cutting, CAD & CNC
Brass bearings are the way to go, if for no other reason than, though you could get plastic ones to work, they are not likely to last very long. -
How many wind turbines would be needed to power a 225 mph HS2 train?
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This is almost certainly wrong. Most of the manure would have come from London, though some might have come from the larger towns such as Norwich. The usual recipients of all this goodness were a tract of market gardens around London which produced year-round vegetables in hot-beds. In these, crops were grown in layered beds where the bottom layers where more or less fresh manure gave off enough heat to speed up the growth of plants in the upper layers. Of course there was also fish offal from Lowestoft, but most of that was landed during the herring season.
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The best electric railway in the world is useless if there is nothing to power it.
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Only if the Government decides to build a fleet of new nuclear power stations, i.e. start a whole new major infrastructure project, just like HS2 was supposed to be.
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Perfectly safe, if you follow the rules. Feed the red mushrooms to your reindeer and drink its urine. Gives you a feeling of being at one with the cosmos.
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There was a report in. I think, the GCR Soc magazine, of a train going through Rotherham containing a wagon filled with night soil. The train snatched going through the station depositing some of the contents of this wagon onto waiting passengers. This ended in a court case with the railway found liable for the damage to these passenger's clothing.
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Could be useful as car carriers, if there's a fire in an EV, they can be just shunted over the side.