I like this design. Looks like a person could get far greater tilt/dump angle than a hydraulic top link. Any more close up pics of your design? Thank you.
That's all the pics I have of it. I basically copied a bale carrier frame I have, then added a cross member for the cylinder to attach to, and a couple braces to tie it in to the cross member ahead of that to push against. The pivot pin is 1", and ran though a piece of pipe to tie the back of the frame together, and leave short stub pins to pivot on, to keep them from bending.
Sub frame is made out of the same 1-1/2" X 3" tubing, with 2" C-channel cross members. As far as cylinder attaching point to the platform, I measured the dump bed on my one ton dump truck, and scaled it down 1/3. Deck is like 1/16" sheet steel.
I have since added a hydraulic top link, so if needed, a person can raise the 3 pt., let the top link out, and platform be at a full 90コ angle to the ground.
I used a 2" cylinder, and will dump anything I've put on it so far. I used it for weight on my M-F 180, for when I rolled the pad for the new buildings. Backed my dump truck up to it, and dumped bank run gravel on, and what stayed on was the weight. Guessing 1000 to 1200 lbs. Stayed on there for approx. 2 months, and when I was done, the 180 dumped it at an idle.
I've used it for a multitude of things from mucking stalls, to gathering rocks/dead limbs out of the pasture/hay field, spotting dirt, or stone. Pretty handy to just back up to a wash to dump the rocks, or burn pile for the brush.