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Home   Forums   Events Calendar   Sponsors   Support the RRLine   Guestbook   FAQ     Register Active Topics | Active Polls | Resources | Members | Online Users | Live Chat | Avatar Legend | Search | Statistics Photo Album | File Lister | File Library [ Active Members: 5 | Anonymous Members: 0 | Guests: 69 ]  [ Total: 74 ]  [ Newest Member: John Prizzi ]  All Forums  Model Railroad Forums  Early Rail Forum  The Coos Bay and Willamette Valley Previous Page | Next Page  New Topic |   Reply to Topic |  Author Topic Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 of 100 rrjohn46 New Hire Posted - 07/20/2017 :  4:51:02 PM     Bob, Yeah, FUD is pretty brittle. I've broken a few FUD items. Even when you wick some ACC into it FUD isn't very strong. I like that you haven't incorporated the dome bases into the boiler. Having the dome bases part of the domes rather than the boiler means no tricky masking where the bases and boiler meet. John Bopp Country: USA | Posts: 8 railman28 Fireman Posted - 07/22/2017 :  1:01:40 PM     Thank you John, Yes I think it'd much easier to fit the bases of the domes to the boiler using the traditional methods and then attach after painting than to try and mask them in place. Shapeways says my brass frame and third boiler won't ship until the 28th so while I not-so-patiently wait I'm working on drawing the details like cover plates and side rods and answering such questions as How am I going to mount the walkways? Do I want a peak or curved cab (prototypes had both)? Should the cab be FUD or Brass? And so on and so on. This is all much more work than I had imagined bu that is Okay as I am enjoying it greatly. It's only make-believe Country: USA | Posts: 4915 railman28 Fireman Posted - 07/26/2017 :  4:12:58 PM     Just a quick update, The brass frame was done a week earlier than Shapewapes has estimated and is in the mail now. Here are the details that I have been drawing while waiting for the frame and boiler prints; Put together, for printing there are two cover (front and back)plates, two side rods, two main rods and a two piece drive shaft holder/weight. These are all the parts I need for the mechanism. I hope they're all the right size. It's only make-believe Country: USA | Posts: 4915 deemery Fireman Premium Member Posted - 07/26/2017 :  4:48:22 PM     Are you designing/3D printing the cylinders, or using an existing part? I'm really looking forward to seeing the brass boiler. dave Modeling 1890s (because the voices in my head told me to) Country: USA | Posts: 7381 railman28 Fireman Posted - 07/26/2017 :  4:55:12 PM     Dave, I'm using Precision Scales' Wabash Cylinders. This Boiler is the Third prototype and is in FUD. Only the frame is brass. It's only make-believe Country: USA | Posts: 4915 deemery Fireman Premium Member Posted - 07/27/2017 :  08:58:06 AM     Ah... Did you cost out the boiler in brass? Would the extra weight be worth it? dave Modeling 1890s (because the voices in my head told me to) Country: USA | Posts: 7381 railman28 Fireman Posted - 07/27/2017 :  10:38:11 AM     I did, about $120, and yes worth it because the better/longer it operates the more satisfaction the project will give. The more weight, the more work it can do, the more satisfaction. Even the weight being centered lower gives better tracking and stability. Not to mention the brass can take an accident or two and the paint will adhere better. IMHO It's only make-believe Country: USA | Posts: 4915 masonamerican Fireman Posted - 07/28/2017 :  2:38:08 PM     I'm also waiting impatiently! Must say the rods look terrific. Really shows how great new medium 3D printing can be. Håkan Country: Sweden | Posts: 1698 railman28 Fireman Posted - 07/28/2017 :  6:28:20 PM     I find it so hard to wait. But, I've been waiting for decades for a model of this engine (it's a long ugly story) so what's a few days? Thank you, Hagan, I going to loose a little of the details you see in the drawing when they are printed (the bolt head top on the oil cups) but I don't think it will be noticed on the model. Shapeways tells me these parts shipped today. It's only make-believe Country: USA | Posts: 4915 railman28 Fireman Posted - 07/29/2017 :  7:48:20 PM     The wait be over. May I present the final frame in brass. From the bottom, This is a sorry photo. and here one with the third prototype boiler being test fitted. The frame weights about 1.5 ounces. The brass casting came out exactly as predicted by the test prints I did. A very little filing and the drives will drop right into the slots. I'll take more photos later but I'm just going to enjoy viewing the frame for a while. I'm very please with the results at this point. It's only make-believe Country: USA | Posts: 4915 deemery Fireman Premium Member Posted - 07/29/2017 :  8:48:32 PM     VERY NICE! dave Modeling 1890s (because the voices in my head told me to) Country: USA | Posts: 7381 Michael Hohn Fireman Posted - 07/29/2017 :  10:03:37 PM       Beautiful, Bob. --Mike _______________________________________________________________________________________________ Nobody living can ever stop me, as I go walking that freedom highway -- Woody Guthrie Country: USA | Posts: 4601 railman28 Fireman Posted - 07/30/2017 :  7:43:23 PM     Dave, Mike, Thank you very much. Here's some more shots. In this first picture you can see how the drivers almost drop into the slots. Just a little careful filing. In this view you can see how thin the space is between the back two drivers. I will try to open it up a bit when I open the driver slots. Here's one with the brass frame and its prototypes; And the last FUD prototype with the brass print (same Drawing); Shapeways deserves a bit of credit here. The difference between the casting and the original use to be about 4%. You can see how little it is now. It's only make-believe Edited by - railman28 on 07/30/2017 7:46:17 PM Country: USA | Posts: 4915 Carrie Creek Fireman Premium Member Posted - 07/30/2017 :  8:56:07 PM     Nice work, Bob, looks great! I guess when you want a certain prototype engine this is what you need to do but seems like a lot of work. We'll see how I feel when I get started on my 2-6-6 Mason-Bogie scratch build using a Tyco Big 6 frame as a starting point. Again well done!! Phil Z POR (press on regardless) Country: USA | Posts: 1501 railman28 Fireman Posted - 07/31/2017 :  02:33:31 AM     Thanks Phil. IMHO The Tyco big 6 is a good solid core and a good start point. It's only make-believe Country: USA | Posts: 4915 Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 of 100 Topic    New Topic |   Reply to Topic |  Previous Page | Next Page Jump To: Select Forum Railroad Line Administrative Forums       Forum News       Administrative Posts General Forums       WorkShops, Garage, Machines and Tools       The Tour Bus       The Arrival Track       RR-L Member Personal Websites       The Crew Lounge       The Classroom       Interchange Tracks       Rail Events       Reference & Research Model Railroad Forums       The Sn3 Branch       Mike Chambers' Craftsman's Corner       HOn30 and HOn3 Forum       Early Rail Forum       Dead Rail Forum       The On30 Line       Railroad Photography Forum       Small Scale Model Railroad Forum       Mid Scale Model Railroad Forum       Large Scale Model Railroad Forum       Logging, Mining, & Narrow minded       Model Railroad Construction       Micro & Mini Layouts       Layout Design / Operation Sig Forum       Startin' from Scratch       DCC, Computers and Electronics for Model Railroads Shop Talk       Vehicle and Non-Rail Transportation Modeling       The Steam Shop       The Roundhouse       Rolling Stock: the Car Shops       The Diesel Shop Company Store       Railroad-Line Swap Meet       New Product Announcements Fallen Flag Railroad Forums       Erie / Lackawanna Railroad Forum       Raritan River Railroad Forum Railroad Software Forums       Atlas Right Track Software       Railroad Line Software Library Model Railroad Club Forums       The Model Railroad Club Forum Sponsor Forums       Rusty Stumps Scale Models       KingMill Enterprises Railroad Line Weblinks       Badger Creek Lumber Co.       Central Missouri & Southern RR       Raritan River Railroad       Thor's All Gauge Page  -------------------- Home Active Topics Frequently Asked Questions Member Information Search Page Railroad Line Forums © 2000-19 Railroad Line Co.
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