Alasdair Ryan Posted January 12, 2013 Posted January 12, 2013 What about making a half truck,there is not many of them around. Quote
efferman Posted January 12, 2013 Author Posted January 12, 2013 its an option. a new version of this would be nice Quote
750ACE Posted January 12, 2013 Posted January 12, 2013 no, my thought during building was a snowgroomer, but in meanwhile iam thinking i switch to build something like this I got to see this live like 20 years ago. Quote
efferman Posted January 13, 2013 Author Posted January 13, 2013 (edited) cool, it was surely much fun. i have made a little testrun with the fasttracks chassis which i have built this morning i think the suspension is too soft and i have to secure the tan bevel gears. they ar falling apart at some situations Edited January 13, 2013 by efferman Quote
efferman Posted January 13, 2013 Author Posted January 13, 2013 "the Bricksaw" is nearly completed 100_9918 von efferman auf Flickr Quote
AndroTech Posted January 13, 2013 Posted January 13, 2013 Great job effe. I like it. It's so aerodynamic. What happened with second row of threads? Quote
efferman Posted January 13, 2013 Author Posted January 13, 2013 oh, i had thinked the proportions was wrong, so i made narrow tracks Quote
dhc6twinotter Posted January 14, 2013 Posted January 14, 2013 Looks great! What happened with your log truck? Did you complete that? Quote
Paul202 Posted January 14, 2013 Posted January 14, 2013 Woah, it heavily reminds me of something some guys built called Ripsaw: http://www.redferret.net/?p=9590 It's pretty awesome. Quote
efferman Posted January 14, 2013 Author Posted January 14, 2013 thanks guys What happened with your log truck? Did you complete that? not yet, it is waiting a long time that iam sorting my parts to get enough free space on my table Quote
efferman Posted January 16, 2013 Author Posted January 16, 2013 the new chassis is dissappointing slow Quote
Balrog Posted January 16, 2013 Posted January 16, 2013 Though, it is slow, it has a good turning speed. I would say you need to exchange some gears Quote
Morj Posted January 16, 2013 Posted January 16, 2013 Though, it is slow, it has a good turning speed. I would say you need to exchange some gears Every tracked vehicle with reasonable width should't have any problems with turning speed. Quote
efferman Posted January 16, 2013 Author Posted January 16, 2013 Balrog, i have the same gear ratio like my first bricksaw chassis. it seems that the portal hubs delivers too much resistance compared to somple axles through liftarms Quote
Balrog Posted January 16, 2013 Posted January 16, 2013 Since I have no idea how you built it, I cannot judge on that. Quote
efferman Posted January 16, 2013 Author Posted January 16, 2013 this is the current standing 100_9922 von efferman auf Flickr Quote
Balrog Posted January 16, 2013 Posted January 16, 2013 Technically, I have to say it is an ingenious construction. Very clever use of the portal hubs. And a very clever type of suspension. Consider this stolen, once I can lay my hand on some tracks. And time. Quote
efferman Posted January 16, 2013 Author Posted January 16, 2013 using the portal hubs was a big mistake. they offer much more friction than a simple axle through hole setup. so i made the decission to use some oldschool parts. 100_9924 von efferman auf Flickr and a hint for people who want to build tracked vehicles. a tight chain tension will bring additional friction so make it better a bit more loose Quote
Alasdair Ryan Posted January 16, 2013 Posted January 16, 2013 Do you have bushes in-between the sprocket and beams? Quote
efferman Posted January 16, 2013 Author Posted January 16, 2013 Sure By the way, the speed is now the same like the first chassis, but i want more. It is time for a quadcore setup Quote
vmln8r Posted January 16, 2013 Posted January 16, 2013 It seems a lot of power is needed to overcome the friction in the tracklinks. Maybe replace with some smooth parts such as or + ? Quote
efferman Posted January 16, 2013 Author Posted January 16, 2013 I have tried some combinations and the double bevel gears works best as side support and they offer a relative smooth run. Oh wait a minute, i have an idea this moment :) Quote
jorgeopesi Posted January 16, 2013 Posted January 16, 2013 In the end are portals hubs a bad piece?, if the friction are high we will have same problem with the new hubs in RC MOCs... Quote
efferman Posted January 16, 2013 Author Posted January 16, 2013 this i would not say, the threepin connection is much more stable than a crossaxle. so it has it place of duty, but not at situations there is no weight applied on it. at vmln8r: thanks for your suggestion 100_9926 von efferman on Flickr it seems to be faster Quote
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