bill-lobb

The below table was quoted in an article on Midland Locomotive Performance by John F Clay & J N C Law in the November 75 Railway World. Best I can find. Bill

I have been playing with a Photon over that last couple of months. Nothing like as complicated as that yet. How do you find the dimensional accuracy of your prints? I found on a wagon body that it printed a bit oversize. (Anycubic green resin that came with the printer) I got it down to less than 1% out by fiddling with the settings. I was just wondering how other users found it and any suggestions to improve it. Is the Z axis mod worth getting? Finally, any chance of seeing a print or the design with the skirt? That sounds interesting, but I am having problems visualising it.

I have been playing with a Photon over that last couple of months. Nothing like as complicated as that yet. How do you find the dimensional accuracy of your prints? I found on a wagon body that it printed a bit oversize. (Anycubic green resin that came with the printer) I got it down to less than 1% out by fiddling with the settings. I was just wondering how other users found it and any suggestions to improve it. Is the Z axis mod worth getting? Finally, any chance of seeing a print or the design with the skirt? That sounds interesting, but I am having problems visualising it.

Now there's the big engine the Midland always wanted.

Have you tried Robbie's Rolling Stock? See http://www.robbiesrollingstock.co.uk/ It is some years since I ordered anything from him, but when I did he was able to adapt the transfer sides to whatever size wagon you asked for. Bill

Hi Tom, Thank you for that. I take it that is this device: https://www.amazon.co.uk/ANYCUBIC-Printer-Masking-Technology-Upgrade/dp/B07DLRGWVV/ref=sr_1_1_sspa?ie=UTF8&qid=1546446468&sr=8-1-spons&keywords=anycubic+photon&psc=1 It does look good. I was considering buying a milling machine, but this costs less and might well get more use. Bill

I have found this thread rather interesting. Despite my reply to that other chap on the VAG, I find myself considering whether getting myself a 3D printer would be a good idea. So can I ask some advice from those who use such a beast: How well does the quality of the print compare with Shapeways - can you get the same or similar level of detail? The ones above look pretty good to me. Where is a suitable place to locate them - can they be used in a garage or shed or do they need better protection than that? Are theire environmental issues - I particularly mean noise and or/smells? Might be important in gaining approval from the Domestic Authorities. I suppose that the design for the print needs to incorporate supports. My one essay in the field was printed by Shapeways so I didn't have to consider that. Are there any guidelines on how that should be done and where wopuld I find them? Thanks in anticipation, Bill

Thank you everyone for your thoughts. It did look rather strange to me. The above diagrams are interesting, although the "common" type is the one I'd have called "English Garden Wall". In fairness it does seem to be the most common style used around where I live. I'd not seen the difference between English and English cross before. Bill

Not quite on the topic of Brickpaper va Plasticard, but does anyone know what this brick bond would be called? It seems to be used on NER buildings in the early years of the 20th century - well at least at Bridlington and Londesborough excursion station at Scarborough. Thanks, Bill

Thank you for that. I probably misunderstood (or misremembered) what I was told. Bill

Now I am back from holiday, I attach this photo to clarify my original post. The original etch is on the left. Note that there are 4 rectangular pieces of metal over the wheels, which can also be seen on Nick's model.These are, I believe, an error in the etch. On the right is a corrected etch for the underframe only, with said pieces of metal removed. Sadly, it is not just a case of cutting them away, as if you look closely you will see that there is some metal on the corrected etch that is not there on the original. When I was shop 2 shopkeeper I was supposed to send both the full etch and the corrected underframe with every order. If you don't have it, it might be worth contacting the current shopkeeper to see what the situation is now. Having seen Nick's model, I have now noticed a glaring error in mine. Bill

I'm pretty sure that is what I used. The end baulks are from the Peco wagon. I have added bits of plastic section to represent the cradle it rested on, and the bracing wires and straps holding the tank body are my additions too. Bill

I have built one. I've attached a couple of photos, but they are of the completes model. Not sure if they will help. IIRC from when I had shop 2 there wass an error with the frame etch for which you should have an extra piece. That was a few years ago so might not apply now. Bill

I am just taking my first baby steps with OpenSCAD. As a former computing person, I do like the programming approach, and I agree that it is very quick for laying out repeat shapes. So far I am working on a simple wagon body, using the "primitive functions". So far I have just needed cuboids so no problem there. I must investigate the extrude function, however. That looks really useful. Bill

Thank you. That is a shame - back to converting the association 1907 RCH kits to end door versions.

Have I missed something? I wanted a quick and easy PO wagon so went looking for a Mathieson one. The website I had for them no longer worked and shops selling them were almost entirely out of stock? Its some years since I last looked. Are they still available?

Managed to get a bit more done on the 1F this week. By far the most time consuming addition was the smoke box door, fourteen pieces and about six hours - it's remarkable how much time having these sort of things available as castings saves. Lovely. I want one.

So we have a thread about thread. Excellent Bill

Phil Smith used to do 2mm pre group wagon transfers. I don't know if they are still available as I haven't ordered any for a few years, Details are here: http://www.2mm.org.uk/small_suppliers/philsmith/index.htm Bill

Yes, agreed. The shunter would have to ensure the levers are released on both sides, although it would be sufficient to only fasten one side.. That is possibly another reason that this design did not last very long. Bill Bill

The wagon as modeled looks to me to have a single v hanger on each side, so must have had a cross shaft - independent brakes would have had two v hangers on each side. Actually with independent brakes on each side there would be no need to reverse the lever. I am pretty sure that both the Midland and Great Northern (presumably others too) used brakes like this on some wagons. I believe that it was an early attempt to have brakes that could be worked from either side. The levers were fixed to the cross shaft and would simply move together. So pushing one down on one side would move the one on the other side down too. The Morton arrangement with a cam-clutch was (I think) a later improved development to allow the levers to both point to the right as you looked at the wagon. Possibly significant when shunting a train in a dimly lit yard at night. Bill

Excellent. Looking forward to it already Bill

I suspect they would. I think the wheelbases are adjustable. Bill

Hi Jerry, I thought long and hard about posting this, but in the end decided that I should. I think you have left a comment on a public forum that is inaccurate and potentially damaging. In my opinion a response was necessary. If you think I am wrong (clearly you do) then fine, we have both had our say. Obviously I have no knowledge of the content of personal emails between you and David (and don't wish to). I am happy now to agree to disagree and say no more. Any chance of your bringing Tucking Mill north again any time soon? Bill

Jerry, I think you have misunderstood what David said. My understanding of his response on the VAG was that he did not intend to change this etch not that he would never change them. That is because,in this case, the errors are too small and the work around sufficiently easy that the cost of re-tooling would not be worth while. Where necessary he does correct errors. A case in point is the Midland Railway 6-wheel brake vans that have been intended for the association shop for ages. That waited until he built a test etch. When he did he found a part was difficult to form so he had new parts etched. Bill