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About Didumos69

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    The Netherlands
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    Family and cycling.


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    The Netherlands

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  1. No, the tumbler tires won't fit. The suspension relies on the diameter and the deep offset of the Porsche rims. It could be tweaked to fit the Unimog rims with race tires, but they would sit rediculously far outside the body and look way too small.
  2. @IA creations, @agrof, @HorcikDesigns, @DugaldIC, @brunojj1, @Lox Lego, @Lipko, thank you guys for the kind words! I wanted to shoot the final video too, but my camera gave up on me. And thanks again to those who helped me and pushed me in the right direction on several occasions. I hope you will all be able to build or get to see and 'feel' a real life instance someday! EDIT: I added some chassis-only photos to the final photo shoot bricksafe folder.
  3. I somehow thought Dugald was mainly focused on the functions and you on the shaping, but I was wrong. It's great to see you guys stimulate and help each other to bring out the best. Wouldn't make sense to compare the two of you.
  4. Here is the final photo shoot (larger images can be found here):
  5. This is also how I see it. In my opinion new sets need only get new people interested for Technic. And I would encourage those people to start building their own stuff after a few sets. Personally, I only quickly scan what parts are included, when new sets come along. And when it comes to building my own stuff, I have the feeling I have only just started to explore the possibilities of LEGO Technic. And in that process beauty and 'how things work' go hand in hand. Therefore I would like to insert a quote that is my motto in almost everything I create, both as a professional and as a hobbyist: From the backside of David Gelernter's witty argued essay, Machine Beauty.
  6. While testing the instructions I finally took the time to incorporate the return-to-center for the shifter in my own build. Here is a video of the final chassis:
  7. Wow, this is starting to look really awesome. And I'm convinced (!) the frame of this car has been very well designed too. You take more time than your brother, but you appear to arrive at (at least) the same level with one big step.
  8. As some of you may know I build mostly during early morning / lunch break hours. This is my early morning / lunch break office. Working on some final modifications and testing the instructions for my 'Hammerhead' rugged supercar.
  9. First open a bricksafe image - for instance one with 800x... dimensions - and copy-paste the link from the address bar into your post. The image will be automatically embedded. This will take a second. This post and the ones following should clarify things:
  10. First save the file in a folder where you have permisson. Then cop and paste the file to the program folder. You will get a popup too, but with the option to continue pasting. This is how it worked for me. Yes, looks great,
  11. Yea, it's too raked. I would also suggest to move the steering wheel closer to the seats. In real life a steering wheel usually hangs right above the front edge of the seat. Nice project, btw! EDIT: A bigger steering wheel would be nice, but no wider than 4 studs I think. The belt wheels are 3 studs. Maybe something like this could serve as inspiration:
  12. In the file menu of LDD you can choose 'Export model' and select 'LDraw-Files (.ldr)' before you 'Save'. This is probably what you did. For this export, LDD uses the ldraw.xml file that comes with LDD and is located in the folder where LDD.exe is located too (probably something like C:\Program Files (x86)\LEGO Company\LEGO Digital Designer). This file contains the conversion directives for LDD, but the stock file is no good and messes up your parts, especially when parts are rotated. To fix this, you should replace the ldraw.xml file in the C:\Program Files (x86)\LEGO Company\LEGO Digital Designer folder with the latest version that you can download in the OP of this thread. Now you can open the exported LDraw-File in Stud.io and choose 'Render from the ribbon'. Stud.io comes with POV-Ray (some parts are not present, for instance the Porsche hubs, rims and tires are missing). In the Render-dialog you can rotate, zoom and pan the view and select quality, light position and image size. Hope this helps! EDIT: This won't work when you import your LXF-file into Stud.io directly. You need to export it from LDD and then open the exported LDraw-File in Stud.io. Nice improvement! I like this color scheme too, it fits the Ultra4-temper. Maybe you could make the red arms in the back black too, so only the flanks and the spoiler would be red.
  13. First of all I would like to emphasize - without any doubt - that this model incorporates positive caster by design, which is generally regarded as a good thing. What you are referring to is not positive caster, but positive camber (just like what @PorkyMonster suggested), indeed caused by body roll of the car and slack in the parts. Anti roll bars would help, but when riding off-road you don't want too much leveling between the left and right compression. Another thing that helps - not that this should be added to this model, don't get me wrong - is to add active (or progressive) camber. This means that negative camber increases when the suspension is compressed and decreases when suspension is released. This can be obtained by having a shorter upper wishbone compared to the lower wishbone. Cars like Mercedes and BMW usually have highly active camber, which gives a lot of visually evident negative camber when the car carries a heavy load. EDIT: See also this video to see the effects of caster and active camber. Besides that, there is quite some slack in the parts, which will influence these angles, especially with all the forces that apply in turns. However, theoretically spoken, positive caster will give the wheel on the outside of a turn some negative camber and the wheel on the inside some positive camber, even without KPI. So the positive camber caused by body roll and slack in the video is already somewhat moderated by the positive caster. You can see the positive caster and its positive effect on negative camber in timestamp 0:23 of the video. EDIT: Added illustration:
  14. I love the cardan setup!
  15. Looking very nice with black top! Glad you tried. EDIT: I suppose some of the axles you painted black are hardly available in black. You could incorporate some black #2 connectors to get the same measures with even-length axles, which are widely available. Btw, I have an easy way to make POV-Ray renders from LDD designs in a few steps: Use LDD to export your model to LDraw-format (.ldr). To make this successful you need to download the LDraw.xml file here and replace the original as described in the same post. Load the exported LDraw file in Stud.io and choose 'Render from the ribbon'. Stud.io comes with POV-Ray (some parts are not present, for instance the Porsche hubs, rims and tires are missing). In the Render-dialog you can rotate, zoom and pan the view and select quality, light position and image size.