my new brushless truggy build
 

Hi folks,

I would like to introduce my latest brushless conversion. I have chosen the "Robitronic Mantis" to be convertet; I have bought this one used on ebay, in pretty good condition. The "mantis" is a very popular car here in Germany/Austria, very rugged, and has only a few bugs, which I have fixed.

The setup is going to be again: motor on one side, batteries on the other, with a MR 2680-1600 on 5s lipos. The ESC I have put on the steering servo, but changed that later.

I am a big fan of my OFNA (hobao) Torsen diff, so I am using this for this build, too. Just ordered a new main gear mith 58t, cleand the internal gears and put some lube and "hypoid-oil" of my mercedes-benz diffs into it. So far no wear.

http://s3.directupload.net/images/100529/uwxzji9r.jpg

the front needed some work (bugfix to stop pullout of the arms):
http://s3.directupload.net/images/100529/js4rugdt.jpg

the diff-cases needed some work, to avoid dirt getting too much into the bearings:
http://s10.directupload.net/images/100529/ojv3zued.jpg

The front upper hingepins get a loose fit in the aluminum after a while, so I improved it with some carbon-fiber and, as the original hingepins are to short, took some 4mm spring-steel, no slackness at all like this:
http://s1.directupload.net/images/100529/2zq38nwj.jpg

http://s10.directupload.net/images/100529/t8gpmnvx.jpg

the chassis got sealed, to keep dirt outside.
http://s1.directupload.net/images/100606/a5uh9kb7.jpg

http://s10.directupload.net/images/100606/9k8uh67d.jpg

the mudguard is made of Kydex, great stuff. On this pics the esc is on top of the steering servo. Handling was not good like that, so I have moved it to the rear.

ESC at the rear:
http://s5.directupload.net/images/100620/837dhvs2.jpg
drives much better like this, just excellent.
I changed the shock-springs and the rear shocks, as the originals are too progressive in my opinion, the new rear shocks are longer too, for more shock-travel.

I have finally got myself a new tx/rx, it's the cheap 2,4ghz of hobbyking, wich works simply flawlessly. I have smoked the bec of the ESC, so I got myself a cheap but excellent "hextronic" ubec, wich works better then the ones made by hobbywing (is also a bit bigger).

I hope wheather stays dry today, I'll be going for a ride :smile:
hope you like it
florian

and that's how it looks after about 25 batteries:
http://s1.directupload.net/images/100822/67dzc4bz.jpg
http://s10.directupload.net/images/100829/jbqeaigx.jpg

sorry for the fan, but we had some hot wheater here in Hamburg, and I just don't like the motor getting hotter than 60 deg. c/140f. event wehen that's no harm for the motor.

pics are no show

are u sure, on my computer it works

I see directupload.net no hotlink allowed. I tried clicky as well just takes me to their site. Would love to see the Mantis though.

I see pics

ok thanks, next time I use tiny pics or so

I see pics