I am planning to do a conversion of the Excavator shortly but as I am new in RC land, I thought to try first with something smaller and easier. So my choice went to the Bruder Delta Loader.
Before starting to rip the toy apart and start the conversion I spent a lot of time searching the forum for pioneers who did do the conversion already. After looking several builds, I decided to go ahead deal with the problems on a case by case basis. I learnt a lot and am confident to start on the next Bruder conversion.
I have completed the conversion in a timespan of 2 weeks (few hours in the evening and weekends). The job was more difficult than expected. Taking the toy apart required a lot of patience.
It took a while before all my parts arrived (due to a lack of decent RC stores in Belgium, I had to order most of the stuff from the internet).
Here are a few video's
first test: http://www.youtube.com/watch?v=6HZS5L8W0Hk
the delta loader in operation. http://www.youtube.com/watch?v=s-3_5Qq-SZw
I am not using it in sand as yet as I am not sure if I keep it or sell it. My goal is to make the excavator.
a+
Koen
but I want to know the lift system because yon don't explain him 
