I have a factory grader blade on my 425 but have not had much of a chance to use it.Your's looks like it is going to turn out pretty good.I always had intentions of building one for years and a new one just fell into my lap.I didn't even realize they made them for my machine.I think it was actually made for the newer X series.
Mine mounts from the rear and does not have down pressure.
Is it better to have it mount from the rear if you have no down pressure?
My thinking is that it will exert more pressure as it tries to cut in while mounting it on the front might have the opposite effect?
Yes, it does cut more, just like a front mounted dozer plow hence the use of the adjustable feet. Dragging the blade is much more flexible in what can be done to the blade due to the draft and suction created by the blade in pulling.
An esample is all moldboard plows are drawn, not pushed, same with vators or any other plough, ever wonder why motor graders drag the blade.
A idea you could add to control the suction created by the cutting edge would be to use a trip snow plow, remove the springs and weld on two pivots for bolts or the like hinged to the middle of the plow to the plow carry frame, the bolts (or what ever adjusts and is strong enough) can screw in which would tilt the moldboard forwards reducing the suction on the cutting edge, driveway graders use a near vertical to flat blade, in reverse the cutting edge is extream and cuts more like a plough, this is a common mistake people make with graders and make up for by using weights on the blade when the suction is not enough, more or less they are dragging the cutting edge across the ground and vice versa when scraping.
If the grader is to be used just for general driveways or spreading around material a fixed blade would be fine. If the blade is on a hinge to tilt back and forwards you can control the blade without fighting with it, with the side to side tilt and plow points added to the edges of the cutter blade. If so tilt the top of the blade all the way back, turn the blade all the way to the front and angle the tip into the ground like a plough, you can cut ditches with it.
Side suction and draft is not too much an issue seeing as the tractor is a solid platform on four wheels, it gets tricky when used as a walk behind.
Edited by trowel, March 21, 2014 - 08:33 PM.