dantheman12 Posted July 31, 2022 Posted July 31, 2022 (edited) I’ve been working on this model for ages now, and it is finally starting to come together, but keep taking apart and rebuilding things as I’m a bit of a perfectionist- probably why this is taking so long the goal is to have a motorised model with as many features as possible, I’m focusing on the realistic aspect instead of making it fast. Also due to having limited motors it will have 3 xl control plus motors to drive, and 2 m motors c+ for steering and gears 10 speed gearbox (like the real one, although focusing on the paddle shifters rather than the complicated computer in the real one - https://www.google.com/amp/s/www.motor1.com/news/260390/ford-ranger-raptor-no-manual/amp - (they only make them in automatic) more ‘modified’ as appose to ‘stock’ - better travel, front and back diff locks, etc red and black (mainly because I have the most red parts) would appreciate any tips or suggestions :) the main problem I am having is making a 10 speed gearbox (will probably settle for an 8 speed) also I’m not sure how to make the steering stay straight with such large suspension travel - the wheels keep turning inwards when the springs are compressed. sorry for such a long post, will try to put some pictures but the file size is to big :( currently making the front diff lock more compact Edited July 31, 2022 by dantheman12 Quote
Bricktrain Posted July 31, 2022 Posted July 31, 2022 The bump steer occurs when the tie rods are not the same length and angle as the suspension arms. Quote
keymaker Posted July 31, 2022 Posted July 31, 2022 1 hour ago, dantheman12 said: will try to put some pictures but the file size is to big You can use for example https://bricksafe.com/ to host images. Quote
dantheman12 Posted July 31, 2022 Author Posted July 31, 2022 41 minutes ago, Bricktrain said: The bump steer occurs when the tie rods are not the same length and angle as the suspension arms. Amazing! Changed the angle of the tie rods and it works great now, cheers 3 minutes ago, keymaker said: You can use for example https://bricksafe.com/ to host images. thanks will try this out Quote
2GodBDGlory Posted August 1, 2022 Posted August 1, 2022 Sounds like a pretty cool build! My recommendation for a ten-speed would be to build a 12-speed gearbox, based on a 3x4 principle, and just ignore the two gears. I recently built a drivetrain model of a Ford F-150 Raptor with the same transmission, and used a crazy 12+4R transmission that was essentially a four-speed multiplied by a 3+R transmission. It was based on an older 12-speed design of mine with the reverse gear added, which I made an instruction video of here: Because the 12+4R transmission was only used in a display model, I was able to get away with a somewhat weak 20T to 24T mesh, which might not be suitable for an RC model, but the original 12-speed should be more robust. It's pretty tough to get complex gearboxes like these to work in RC models, but I tried to reinforce my designs as much as possible. Good luck! Quote
dantheman12 Posted August 1, 2022 Author Posted August 1, 2022 1 hour ago, 2GodBDGlory said: Sounds like a pretty cool build! My recommendation for a ten-speed would be to build a 12-speed gearbox, based on a 3x4 principle, and just ignore the two gears. I recently built a drivetrain model of a Ford F-150 Raptor with the same transmission, and used a crazy 12+4R transmission that was essentially a four-speed multiplied by a 3+R transmission. It was based on an older 12-speed design of mine with the reverse gear added, which I made an instruction video of here: Because the 12+4R transmission was only used in a display model, I was able to get away with a somewhat weak 20T to 24T mesh, which might not be suitable for an RC model, but the original 12-speed should be more robust. It's pretty tough to get complex gearboxes like these to work in RC models, but I tried to reinforce my designs as much as possible. Good luck! thanks, I had the same idea, but as you said it was very difficult to make realistic gears that are also practical in rc. I’ll try the ratios you have and see how I go. cheers Quote
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