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  1. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    The buffers was an interesting choice- the easy and fast route was to just adhere to the drawings. Problem there was that I can’t believe these would actually work in real life. The buffers extend way too much compared to the hook. It seems that the buffers were placed close together to...
  2. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    Thanks Richard, I think the problem with the images is that when taking a landscape photo, my mobile just adds to the image metadata : ‘the camera was vertical when the image was taken’ but the actual image is still saved in landscape. And also editing does not help. However: copy, the...
  3. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    Mark, thank you for your kind , helpful remarks. Unforunately the steps I am describing ate beginning of december. So that is why in the next steps I seem to ignore your remark as I was not aware if them. But I really do appreciate your effort and intent to help! I think that in the end after...
  4. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    So off to fabricate a furnace. The outside shell is an ikea waste paper bucket. The inside mold I sized to be the middle ground between the two sizes of crucibles I got from bangood. The refractory was done in two layers/ the inside rather high temp (1100 degC), and the outside 800 degC mixed...
  5. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    So encouraged by molten bronze, made my first split pattern. And after what felt was a good pour the results below: Pattern on the left, trial in tin in the centre, bronze on the right. It looks ok, but on close inspection you can see it did not fully fill. Also the bottom plate seemed to have...
  6. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    As a bit of an intermezzo- but still very related to this build; I gave casting a try. I have had some delft clay for ages and did some on and off casting of tin. But it is hard to imagine casting something useful in tin. So i started reading and gathering materials. The most essential of course...
  7. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    Rreid- thanks. I might have known- but as I was aware of the term gland nut, I assumed the gland was an equivalent of packing. After this milestone, i did quite an overhaul. First disassemble until bearings as these did not have oil passages yet. Also the bearings still needed the clearance to...
  8. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    After trying to assemble the complete valve gear, I found that it would foul. On multiple spots. I did two quick and dirty modifications- namely putting 2 shims of 0.5 mm beneath the steamchest and putting the union link inside out (so it is not grabbing the combination lever on both sides if...
  9. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    BTW: the motion bracket mounting 2 posts ago was a redo where it needed it to be shifted 3 mm due to the aforementioned instruction ambiguity. The bracket is mounted using 2 mm holes so luckily this is possible without major work. Remounting also meant that the crosshead guide needed to be...
  10. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    BTW: happy to see that one can now directly paste images iso having to rely on photobucket. Is there some limit on size or number of images? I will spare you the occasions where i had to remake stuff due to either errors on my side, or on the drawing. Most annoyingly there was an item where the...
  11. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    And then a lot of fiddling to get the motion bracket in place, and the holes tranferred to the frame. I find drilling in the frame a bit scary so i spend quite a lot of time in setting up. Innthe case that means making a large size machinist clamp and glueing a 2 mm drill into an extension: The...
  12. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    So lots of little things to make. Excentric rod and radius link during creation:
  13. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    Medium fast forward: expansion link included and installed onto frame: Btw: I am getting photobucket warnings that I am over my free bandwidth + some warning that the images will be blurred + watermarked. The good news of that is that someone might actually be looking. I can also see the...
  14. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    Bracket for the expansion link Silver solderend together. In reality the seams are less pronounced than in this image. And considerable effort to remove. The bearings are loctited in place
  15. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    Cilinder assembly mounted on frame. That was an operation I had postponed quite a while. Crosshead guide still hanging loose.
  16. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    At some point also tried the frame on wheels on an actual track: Seemed not a problem. Got some advice as well from local enthousiasts.
  17. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    Long time since last update. And a lot less progress than i had expected. But at least the old posts have the images visible - although with the pb watermark. So below full cilinder assembly with crosshead and guiding. Draincocks are shopmade - i’ll see how they perform at full pressure. No...
  18. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    Speaking about drilling holes: steam chest, cover, cilinder=3x8 holes. On each cilinder equals 48 accurately placed holes. And that equals a personal business case for a dro. I Postponed for 5 years mainly because it seemed out of balance in price (800 €) compared to the mill itself (1300 €)...
  19. H

    GEA, a 3.5'' live steam narrow gauge locomotive

    The drawings called for bronze for the steam chest covers: 3 mm thick ( x 36 mm x40mm). I happened to have a 9 mm thick piece. So with moderately careful sawing this should produce 2 pieces. And it actually worked out ok, with 0.5 mm on one side and 1 mm on the other side. And it does not take...
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