looks good!! I know a few contractors in the valley doing leveling for greenhouse growers that use a farm tractor and a drag scraper with laser comtrol! it seems to go a bit faster!
There are several reasons why this unit must go slow and it relates to the design and set up, not the operator: The receivers do not have a direct relationship to the cylinders that operate the blade The receivers are close together, so response is amplified (a small height differential between the two causes a very large change at the blade edge) The unit has an external sliding pivot mechanism which induces movement, hence rigidity is compromised. Critically, the tilt cylinder is horizontal, while the blade movement must be vertical: therefore any movement in the pivot is amplified, making it impossible for the controller to maintain accuracy Accuracy is only achieved quickly and accurately with a rigid system where the feed back mechanism is direct. It is similar to towing a vehicle with a stretchy rope. If you accelerate fast (rapid response) the rope will stretch and then go slack, rapidly getting worse and worse, to a point where it is impossible to control. To prevent this the tow vehicle must accelerate very slowly (slow response). The solution is to to have a very rigid connection, like a truck trailer draw bar. A rigid system gives the best control every time. I hope this helps
How much better? All the other videos of this unit show it going much faster. I was thinking of buying one but if I have to go that slow to get good results it will be a deal breaker for me. They claim 1/8" accuracy I believe.
We found when pushing with a full blade, it needs time to react with the extra weight it has to lift up and sometimes it doesn't want to lift fst enough. The less material in the blade, the faster you can go, or how hard/soft the surface is all affects the accuracy in the first few passes.
