What About The Bee

Could you have a bit of fluff winding up on the internal mechanism. Something that mechanically binds up. Especially so as Meaning there is still power to the locomotive. The motor should turn, but cannot Bee

I know this will sound like heresy, but here goes! Why not make your garden shed look like 7 Compartment Radial, instead of the franken-modification to a one of a kind lavatory car. (Franken-mod = Frankenstein) Firstly, even with a photograph, the internal layout will be decidedly unclear. Moreover, do you want an outside bathroom and all that entails? So in my mind, it is the external appearance that is important. If you insist on lavatory, make the windows frosted. I do understand the drive to bring it back to original, but my internal debate becomes the definition of original. Is that Lavatory or 7 Compartment Radial? Just my 2 pence ThreeLink, an opinion from the cheap seats in the peanut gallery. Bee

Perhaps one of the lavatory carriages here? http://londonroadmodels.com/carriages_pages/lnwr_carriages.php There are 11 references to LNWR lavatory carriages on that page. While I cannot possibly know which one is appropriate, if any at all are, the page may provide a clue. Bee

Monty, This bit of linkage is not the root cause for the "loco running awfully". Yes, it needs to be put back, but this linkage would only provide a tiny bit of drag to the motion. It may be the wipers causing extra drag. Or the valve gear is hitting itself because it got yanked when the part came off. Or a myriad of other potential issues. But a tiny bit of linkage missing? Nay sir, that isn't the issue Bee

NRM on Locomotion No.1 Great views and discussion of the "real" Locomotion. Bee

No sir, you are not talking to yourself. Ntp had the diagnosis straight away and you are presenting your solution. That's exactly what the forum is about. If you file the chairs too much, the rails will be released, leading to all sorts of subtle issues, like gauging. Bee

Hello @Monty999 The part appears to be a component of the valve gear / connecting rod assembly. The oversized screw hole on the one end is a give-away. To discover which one and where it goes, compare the left and right side views. The side elevation views. You should be able to spot the side that still has the part, whilst the other side does not. That is, the valve gear is symmetric from side to side If you like, post images of the two sides. Helpful hints on reassembly may be in the offing Bee

I look at it this way @LTSR_NSE I'm already in trouble with SWMBO for the pre-order, which the Admiral did not approve. May as well be in trouble once for everything than twice when the extra items arrive separately. Therefore, I would be one to definitely add. I do recognize the invoicing issue as valid, but his could be resolved with a separate invoice. That is, an invoice related to the pre-order; and an invoice related to the add-ons. Overseas customers, like the lads in Oz and those of us Stateside, are dinged heavily for shipping. The plan suggested would help us and Hornby out. Bee

I do think Hornby are missing an opportunity here. When a pre-order comes into stock, why not ask me what else I would like to add to my shipment. Some matching rolling stock, perhaps? A bit of kit for the layout, maybe? Give it a 2 or 3 day window until closure. Offer a modest discount to encourage an additional sales, it it suits Hornby's fancy. The iron is hot. Strike it! Bee

Hello @Train-354733 Of course that is possible! Bee

Hi 81F At the risk of offering something you likely already know, the Kaydee website offers an Airfix page https://www.kadee.com/nem_airfix Bee

Happy to help Fred. When I first started the printing portion of my exercise, I thought to myself: that seems a triffle high. But I came to realize that their staff deals with the physical printing, the chemicals, resins and etc. I never have to worry about room temperature, or print bed parallelism with the horizon. I need only worry about the design, not the printing process. If Shapeways says they can print it, they do. Its also been wonderfully energizing. I have little expectation that any firm, Hornby included, will ever cover all the LMR carriages. Yet now? No worries, I can make the ones I want. Top row, center: Even the first class Lacey and Allen Carriage. I believe the LMR had two of these. And I have not forgotten about LMR locomotives. I do expect Hornby will do Planet someday, but Twin Sisters? Never. Experiment? Never. Caledonian? Never. So as I gain experience, I can see locomotives in my future. Just as 81F is doing now. Bee

Hello Fred While I have not yet developed a formula for pricing parts from Shapeways, there are some key input criteria 1) Material selection. You can literally print in gold, platinum, copper or a variety of plastics. Each has a different unit cost. 2) Spacial volume. The part occupies a space in the print volume. A cubic extremity is computed by Shapeways. You pay for this. 3) Part volume. How much material does your part consume, independent of occupied spacial volume. 4) Minimum price. I have yet to be quoted a price under 5 USD for any part, no matter how small it is. 5) Express handling. Shapeways will do a hurry up, but you pay for it. I always skip this. 6) Shipping and overhead. This fixed price is added to each order, independent of the number of parts. Once I figured this out, I always gang many parts together. It is a big cost increment to ship each part individually. An example: The floor of the cattle waggon needed multiple passes to get a perfect fit. I chose to make it in fine detail plastic, tan. It didn't occupy too much print volume, nor consume much material. I was above minimum price. I skipped express. Shipping and overhead was more than the part! Tax applies, of course. Each turn was ~30 USD. Bee

I agree Colin, should be an interference fit. Bee

Hello @robcat Ordinarily, I would say that these parts should be a light interference fit. The wheels would have just slightly larger outer diameter (1 or 2 thousandths of an inch) than the inner diameter of the rim. The parts would be pressed together. On a real locomotive, a temperature differential is used to expand the rim with heat. But as the rims are loose under the same temperature regime on your locomotive, there is not an interference fit. Hmmm A product like Loctite 603 is used to bond cylindrical parts (like pins in bores), where an interference fit is generally not desired. With your recognition that a bonding agent may interrupt continuity, a dab of electrical conductive paint across the two will preserve the electrical path. So before doing anything, you should understand the electrical path. Where are the wipers? Do the wipers touch the rim? If so, continuity to the wheels is irrelevant except for a short. Do the wipers touch the wheels? Yes, conductive paint will be needed (or similar). Do the wipers touch the axle? You must have an insulated wheel to prevent a dead short. Once you know the electrical path, an informed plan can be developed. Bee

You are always quite welcome LT&SR_NSE. I am happy to answer your question. I do believe in being thorough 🙂 I look forward to the Shapeways printing portion of the question. Particularly the Swingback 2nd, as it includes a pinpoint axle clip, as well as working swingbacks. Exciting days! Bee

Hi LT&SR_NSE A while back, you asked what an LMR second class carriage would properly have looked like. Here is the consolidated list of the carriages that I am aware of. Stephenson's 2nd Class, with and without Canopy Booth's 2nd Class Shaw's Center Entry 2nd Class Shaw's Swingback Church Pew 2nd Class 2nd Class Odds and Ends Bee

An update from last week The chassis, hornguides, horn blocks, spring and wheels are added The Shaw drawing of this carriage is in consist, and the details are kind of small. The hornblock and hornguides are actually the pinpoint clip, while the spring is a separate assembly. The insertion of the pinpoint axle requires that the elongation for fine detail plastic be less than 4%. I carefully engineered this to have ~0.17%. A safety factor of 23+. Still a few details to add, but the functional pinpoint clip shows clearance under all 3d arrangements of the pinpoint axle. Bee