Now I have got a photobucket account running so guess I can share more photos.
During last week I discovered a problem with the ripper attachment. When making the drawing for ripper, I took mesurments from a D8N but the upper part like fuel- oiltank and cab is from a D8R. Main difference between those models is that R-model has larger fuel tank and a new design on ripper attachment.
With my mix, upper cylinders hits the tank when ripper is up.
So lessen learn:
never mix between different 1:1 machines.
I will make new drawing on brackets with new position for upper cylinders. At same time lower part will be redesiged to the clever solution of coupling my friend has. This will make it possible to have most of the drawbar mounted. In real live it´s foldable when not in use.
Yes, I have had some contact with "dozernerd" and the videos was nice, don´t know why they have been removed. Sorry because he has a good looking model that´s working well. He did use a 6hp petrol engine with generator and electric drive (maybee Cat got the idee to D7E from this model?)