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Thread: Another Curved Trestle build

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    Default Another Curved Trestle build

    I'll be using the laser to make this. As seen from my layout build I need a trestle for this tail track.



    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    I'll be using my laser to cut some of the pieces out, like the stringers and maybe some of the bent parts. I'm working on drawing up a template/fixture for the bents, that I'll print with one of the FDM printers.
    I had some of the CAD work done for the stringers, but I forgot to do some setting for the laser before I drew it up, so I'm starting the CAD all over.
    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    I do almost all my CAD work in MM cause that is what my cheap laser works with.
    Most CAD programs uses small straight lines to make circles. I'm using Sketckup 2017 Pro, and when you start a circle, you can input the number of segments you want to make a circle. I divided 360 by .9 (got this by trial and error to get the correct spacing) and came up with 400 and that's what input I put in for the circle. That will give me a center line for the bents at about 8 scale feet apart.
    This what I have so far. The center line is a 40" radius and will be the center of the set of stringers (3 on each side). The two dashed lines are a guide for the length of my cutting table. The good part of this is that those segments are straight and I can space the stringers off of them. The lines that goes to the center of the circle, are where the bents will be attached. I'll have a small tang on the lines to keep the stringers attached to each other and use as a guide to where the bents go.



    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    This is what I have now and what the laser will cut out. The bents will go where the solid parts are. I did the ends to make it more stable at the joints. Now I need to draw a straight set of stringers.




    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    I spent several hours looking for my basswood strips yesterday and couldn't find it. I know the tube of it is here somewhere as I was used some back in the spring. I did find these that I built back in the early '90's. I had built 35 or 40 of them for a curved trestle I built for a ntrak module.
    I could just cut the bents out on the laser, but I don't have enough .062 basswood sheet. So if I make it out of basswood, I'll need to run to KC and get it or order it online and wait a few days.



    After thinking about it today, I'm going to try to print everything on one of the FDM printers. I have some light brown that doesn't look to bad. I can paint if need be. We'll see how it goes.





    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    @Rodsup9000

    Not sure I understand what you were saying but was it that the bents shown above were laser cut or hand cut? I'm just curios because laser cutting stuff would be a lot less frustrating and (possibly) quicker. I might even consider getting one (laser cutter) at some point if they really do work and aren't that difficult to get the gist of.
    Cheers Tony

    "Knowing what to do is one thing ... being able to do it is another"
    "It is easy to criticize ... a lot harder when you have to justify it"

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    Quote Originally Posted by wombat457 View Post
    bents shown above were laser cut or hand cut
    Those were made about 30 years ago from stripwood.
    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    Laser cutting bents is easy, but it does leave them weaker than bents from stripwood or 3d printed ones.

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    I did get some printing done.

    Here is the stringers.
    CAD work






    And printed









    Some of the bents








    More bents that are still on the printer waiting for the bed to cool










    I think all I have left to print is the "Z" bracing" and the stringers for the "bridge" (where it will cross over the mainline) area.

    Z bracing is drawn up and still working on the stringers for the bridge.



    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    Got some of the bracing printed






    Glued to bents








    And started gluing bents to the stringers




    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    @Rodsup9000

    Hey mate, slow down will yu - your making me look bad

    BUT, it is looking first class Sir!
    Cheers Tony

    "Knowing what to do is one thing ... being able to do it is another"
    "It is easy to criticize ... a lot harder when you have to justify it"

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    Have bracing on 27 of them. Only 11 more to do




    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    Looking great Rod but you still have 27 more bents to do ???????????

    I went nuts doing only 20 of the buggers. Good luck my friend
    Cheers Tony

    "Knowing what to do is one thing ... being able to do it is another"
    "It is easy to criticize ... a lot harder when you have to justify it"

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    Quote Originally Posted by wombat457 View Post
    still have 27 more bents to do
    You read it wrong
    27 done and 11 more to do
    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    Just seeing if you were keeping track and watching .....
    Cheers Tony

    "Knowing what to do is one thing ... being able to do it is another"
    "It is easy to criticize ... a lot harder when you have to justify it"

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    Rodney, you are doing stuff I WANT to do and have no clue how to start. Do you have a thread on your laser cutter? Like what model you have, how you got it, and what you had to do to get it running? I seriously WANT a laser cutter, but the ones I can afford are pretty much DIY projects. While I'm not scared of any of the mechanical issues involved in getting them to run, I don't know much about computers, even less about code, and I don't read Chinese. So getting it to run looks pretty daunting to me. I've looked into a Glowforge enough to discover that is a company I refuse to do business with. I haven't been able to discover much about the Dremel laser they sell at MicroMark, but the sticker shock has not subsided enough for me to look any more into it. I don't want to hijack your thread, but if you have such a thread going somewhere, I'd sure like to read it.
    "Do Not Hump!?!?! Does that mean what I think it means?!?"--Michelle Blanchard

    "People saw wood and say nothing, but railroad men saw trains and say things that are better left unprinted."--Charles De Lano Hine

    Down with UP

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    Rod ^^^^^^^^^^^^^ what he said by 2
    Cheers Tony

    "Knowing what to do is one thing ... being able to do it is another"
    "It is easy to criticize ... a lot harder when you have to justify it"

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    Quote Originally Posted by ranulf View Post
    Do you have a thread on your laser cutter?
    I do have some of it buried in my layout thread, but I did one here


    https://www.therailwire.net/forum/in...?topic=40117.0



    You need to start by learning some sort of CAD. I do all my 2D and 3D CAD work in Sketchup. In that thread, I go into how I use sketchup for for making the 2D files to be cut.
    @Gary60's has a basic tutorial for sketchup and there is a lot of "how to get started" videos on youtube, also.

    The new Sketchup is cloud based, but you can download 2017make and use it.

    https://help.sketchup.com/en/downloading-older-versions


    Rodney

    Here is my build of my n-scale railroad
    https://www.nscale.net/forums/showthr...-50-8-quot-%29

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    Wow, Rod! This really makes me want to dust off SketchUp and start printing my own structures. Great work!

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