superdog Posted July 18, 2018 Posted July 18, 2018 (edited) Dear all, Sorry post first SOS topic, i try to building my first MOC truck, it is 6x6 with 20unit WIDE ,62.4x20 wheel. I meet a strong problem about the truck suspension: I did not know it's basic rule My front alex is pendular suspension, the alex with two small turnable,but how to arrange the steering motor is really painful question. My back alex as picture showed, it looks really stupid and strange..I have a lego 42043, but i really didn't just get a new copy.. I read ALEX connection topic, but there is not many truck suspension. Could any body give me some suggestion? many many thanks! Edited July 18, 2018 by superdog Quote
doggo Posted July 18, 2018 Posted July 18, 2018 I might be able to help if you had a picture of the front axle, it looks like you're making good progress though! Quote
superdog Posted July 18, 2018 Author Posted July 18, 2018 (edited) Hi DOGGO, SORRY ， I forgot take a front picture, let me make a explanation first, any update new picture later. maybe 8 hours later. the front ALEX based on 5x7 frame, left and right is wheel, front and back install small turnable, and middle is Differential. my problem is how to arrange the servo motor? the best way I thought is put the motor on 5x7 frame, so it can swing with front alex. But with 1x7 gear rack ， I really can fix the Z12 at two side, so the z12 gear and rack always separate each other. maybe it is possible install the motor on truck upper fame? use universal joint connect. because the upper fame have space. Edited July 18, 2018 by superdog Quote
superdog Posted July 18, 2018 Author Posted July 18, 2018 Up date my photo, sorry not clear because of attach size limited. Quote
M_longer Posted July 18, 2018 Posted July 18, 2018 10 minutes ago, superdog said: Up date my photo, sorry not clear because of attach size limited. Use Bricksafe or Flickr for hosting pictures :) Could you add few more pictures? Especially form top wiev on the axle, maybe there's a room for a linkage for steeering? Quote
conceitedguy Posted July 18, 2018 Posted July 18, 2018 You can post larger images by uploading them to an image hosting service and then embedding them here, rather than using the attachment function; Flickr and Brickshelf are usually recommended. There's information in the FAQ thread in the Forum Information and Help forum if you need assistance. Quote
doggo Posted July 18, 2018 Posted July 18, 2018 It looks like there's room to flip the servo upside-down, you should be able to use 16z gears on the front of the servo then put an axle to the steering rack connected to the 12z gear, as for bracing it, i would say to put a 11 long liftarm and one of these https://www.bricklink.com/v2/catalog/catalogitem.page?P=60484#T=C to stabilize the rack and the gear. Quote
superdog Posted July 20, 2018 Author Posted July 20, 2018 Hello doggo, I am so busy try to find a photo store website what we can use. I post some picture: Quote
doggo Posted July 20, 2018 Posted July 20, 2018 Is the black axle on the left side of the last photo the servo axle? Quote
superdog Posted July 21, 2018 Author Posted July 21, 2018 No, it's a drive axle through small turnable, I thinke meybe the servo motor can be erected installation. Quote
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