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About djm

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  1. Train Projects on Lego Ideas

    Steamtrains, BR01 was created on September 11th and currently is sitting on 1439 supporters. There's Steamtrains, BR93, created on Septmeber 12th currently sitting on 392 supporters. His third engine BR52 was previously identified in this post, and currently has 393 supporters. David
  2. [WIP] Lego monorails. [Custom Rail Systems (CRS)]

    @Mark Bellis has graciously given me permission to post building instructions for his design of monorail track curves and straights. There are building instructions available to download for; a curved track section a 16 stud long straight and a 32 stud long straight Regards, David
  3. [WIP] Lego monorails. [Custom Rail Systems (CRS)]

    Hi Mark, you would be more than welcome to link to (or upload if appropriate) those building instructions should you decide to progress a LEGO Ideas project. I would sound a warning that given the number of supporters Masa Hidaka gained (~1700) when he submitted his project , that the odds of one reaching the necessary level of support appear slight. Some good train projects on LEGO Ideas struggled to get enough votes so a monorail project may face an even tougher challenge. In the meantime, we can of course continue our design postings on EuroBricks - I am currently experimenting with building a "trigger" track section. The purpose of this section (if it works!) is to allow automation of a layout using NXT bricks e.g. changing the position of a switch for an inbound train. David
  4. I think it was pulled because they forgot to include a more up-to-date ldraw.xml file. If only there was one available
  5. [WIP] Lego monorails. [Custom Rail Systems (CRS)]

    @Mark Bellis has built a 4 track switch with a single servo motor (refer to pictures within his brickshelf gallery). I don't know whether or not it is able to go from any one setting to any other (e.g. from "A" to "B" directly and from "A" to "C" directly) or whether it has to step through each one (e.g. from "A" to "B" directly and from "A" to "C" but via "B"). David
  6. [WIP] Lego monorails. [Custom Rail Systems (CRS)]

    It seems unlikely to me to be able to do this with one motor. I guess that there might be some cunning mechanical configuration where it could cycle between the three different settings using one motor but coming up with that would be way above my pay grade. David
  7. [WIP] Lego monorails. [Custom Rail Systems (CRS)]

    Fully built double switch (please pardon the parts' colour selection!). Regards, David
  8. [WIP] Lego monorails. [Custom Rail Systems (CRS)]

    This weekend I've worked on reverse engineering Masao Hidaka's monorail double switch, based on his youtube videos. I've got the substrate and gearing sorted and have created corresponding building instructions. The next step will be to add the track elements. In the meantime, here's a video showing the switch build-to-date in operation. Regards, David
  9. @LEGOFUN, open the file "%ProgramFiles%\LEGO Company\LEGO Digital Designer\ldraw.xml". Check if the first line in the file looks something like: <LDrawMapping versionMajor="1" versionMinor="7" comment="MG beta 4.32 LDD 4.3.6 Brick ver 1033"> or like <LDrawMapping versionMajor="1" versionMinor="7" comment="LDD 4.3.11 Brick ver 2670"> If it looks like the first one, you have not updated your LDraw.xml file. See the post from @SylvainLS above. When I restored the original LDD ldraw.xml file (i.e. the one that came with LDD) I see the behaviour you are experiencing i.e. missing parts. When I use the updated ldraw.xml file, the iissue you are experiencing goes away. Regards, David
  10. Yes, if you switch to LDCAD, you can still use LPub. The tools MLCAD, LPub, LDCAD, LPub3D, etc all operate on LDraw files. If you try switching from one "equivalent" tool to another (e.g. from MLCAD to LDCAD) and decide you prefer your original tool choice, you can switch back and any changes to your model made with the newer tool will be visible in the older tool. As an FYI, within LDD I created a model with just the 15070 part in and saved it as an LDraw file. I then opened the "ldr" file using LDCAD and it successully shows the same part. That would suggest the issue is related to one of configuration on your machine. Regards, David
  11. Assuming you have already selected the MLCAD menu option "File/Save As" and it has not solved the issue, might I suggest you go one step back. It was identified earlier in this topic that you need to get a more up-to-date customised part conversion file. Assuming you followed the instructions in that thread, after you had installed it did you then again save the model from within Lego Digital Designer as an LDraw file? The part conversion is done at the time your model is saved, so if you didn't save it after updating the conversion file, your LDraw model won't be as good as it can be. Regards, David P.S. I'd also suggest to look at using LDCAD rather than MLCAD for modelling with LDraw files. If you turn on "part snapping" (see "Basic brick placement using part snapping" within here) and consider whether to use it in "trackball" verses "spin" mode (see "The camera system" on the same page), your modelling experience will be more enjoyable.
  12. [WIP] Lego monorails. [Custom Rail Systems (CRS)]

    This part looks promising to enable smoother curves. Refer to David
  13. I saw this on BrickLink today, new for 2018. I don't think it has been identified in this topic before. Though it will be too pricey at the moment, having a 1x2 plate with round corners may result in smoother/more flexible curves, such as the "parts built" monorail curved track by Mark Bellis, especially if the 2x2 plates are replaced with 2x2 round plates. Regards, David
  14. [WIP] Lego monorails. [Custom Rail Systems (CRS)]

    From Masao Hidaka's "how to" video to build a switch, I reverse engineered the switch as a LDraw design. I then created build instructions for the design and followed said instructions to test the build. Colours aside, the video below shows the build resulting from the build instructions. I am trying to contact Masao Hidaka to get his permission to make the build instructions available for downloading. Assuming his permission is forthcoming, I will post a link to the build instructions as appropriate. Based on another of his "how to" videos, I have also reverse engineered his monorail engine and carriage and created building instructions. I am seeking his permission to make the instructions available for download. Regards, David
  15. [WIP] Lego monorails. [Custom Rail Systems (CRS)]

    I believe the newer design of the 20 tooth gear is the bottom right one and it has been out for a long while. I have some oldish LEGO and for my first attempt at the physical build, happened to grab a gear with the older design. David