KalEl63 695 Posted January 11, 2020 Just wondering if any fellow TC members shortened the wheel base on their CR-01 (especially the rear) and if so how did you do it? Share this post Link to post Share on other sites
mtbkym01 4008 Posted January 11, 2020 Yes looking forward to see if any have done this Share this post Link to post Share on other sites
mastino 1085 Posted January 11, 2020 Mine has a wheelbase of 276 mm. To shorten it I made new links using threaded Rod and SS tube ( or alu, i don't Remember). I'll try to find some pictures... Share this post Link to post Share on other sites
KalEl63 695 Posted January 11, 2020 That would be great if you could Share this post Link to post Share on other sites
mastino 1085 Posted January 12, 2020 Unfortunately four years have passed and I can't find the measurement I used. But I cut three different parts in lenghts, therefore I must have used just one original link. for fine adjustement probably I switched from original Tamiya uniball to traxxas uniball, but I'm not sure... photos don't help. To complete the link normally use threaded rod 3 or 4 MA . I cut the rod 16 mm longer than the tube and screw the uniball for example, self made link for HPI Venture shortening MST shortening Axial Dingo 1 1 Share this post Link to post Share on other sites
isomer1 175 Posted January 12, 2020 I pulled up @mastino's first image in Matlab. Granted there will be some artifacts because it's a real world image, but he got a good top-down image without much distortion. And taking the photo with the ruler was key. Measured the the ruler twice and took an average to get: >> mmPerPixel = mean([(170/701.11) 170/712.02]) mmPerPixel = 0.2406 Then from that (using the measurements from the image) define: >> shortTube = 186.65; >> midTube = 250.18; >> longTube = 254.07; And from that calculate: >> shortTubeMm = shortTube * mmPerPixel shortTubeMm = 44.9108 >> midTubeMm = midTube * mmPerPixel midTubeMm = 60.1971 >> longTubeMm = longTube * mmPerPixel longTubeMm = 61.1331 Those numbers look about right. Cheers to @mastino for the images illustrating his process. Share this post Link to post Share on other sites
isomer1 175 Posted January 12, 2020 (thought I mislabeled the variable, all is good, ignore this followup) Share this post Link to post Share on other sites
KalEl63 695 Posted January 15, 2020 So it turns out the numbers are 55mm for the upper rear and 53mm for the lower rear to move it forward by about 15mm i will find out once my kit arrives and I get building 1 Share this post Link to post Share on other sites