Newest addition to my family of tractor implements

[MikeD74T]

Re: A couple more picts

Neat simple idea. One suggestion, put metal or wood diagonal braces from the outer ends back to the tongues at 45 degree angles. If you catch one end or load one end too heavy the hardware you've installed may fail to resist racking of the parallel arms. Triangles are key to structural success in the absence of absolutely ridgid joints. Make sure to post some pics "in use". MikeD74T

 

[KSagal]

Re: A couple more picts

Mike makes a great point that I thought of as well, in the diagonal bracing.

One thing that you may want to consider is that the bracing need not be quite as beefy as your primary members, it is designed to stop them from moving, not bear the load they do. (4 by lumber may not be necessary, a simple metal strut would work)

In past similar projects, I have used threaded rod for bracing of this sort. I like it because as the item ages, sometimes the lumber will twist a bit, or rack. When this happens, a few turns of a jam nut and anchor nut will correct and get you back to square. (Much in the manner that turn buckles are used in diagonal bracing on doors and gates)

Good luck.

 

[SI2305]

Re: A couple more picts

Actually, this is a work still in progress. The 4x4's were 6' long and the arms are 2' 7.5" long. This leaves me with enough wood left over to put another 4x4 crosspiece near the link arms. I also have some treated 2x4's to put in angle bracing for the crucial triangles. Actually, the main reason I made the thing out of wood is simply that I have quite a bit of experience with wood and almost none with metal. So I figured that the 72" 4x4 would be plenty strong for raking grass and heavy enough to not need any additional weight. BTW, I have two thoughts about the angle bracing. I could use wood 2x4, or I could use cable with turnbuckles. Advantage of the latter is that it would be less "stuff" and could be adjusted nice and tight. The 2x4 would be permanent but very rigid.

BTW, I have not yet decided where to but top link. One part of me says put the remaining 4x4 near the rear and attach a 2x4 or other stock vertically from there. I probably have enough 4x4 left from other projects to raise up a top link using 4x4. If I were to attach it the way I did the other posts, would it be sufficiently secure? Maybe an L bracket wrapping around the bottom of the horizontal 4x4 and a lag screw would work. As far as I know, most of the forces are going to be vertical. Will this work?

By the way, thanks for all the advice and info.

SI 2305

 

[SI2305]

New build almost done!

Hello all,

Thanks much for all your comments. By now I just about have my rake done in a prototype fashion. By biggest concern now is the top link connector. I took measurements from my middle buster to get the height about right and used that as a sort of rough blueprint--reverse engineering to be more accurate.

Some have asked "why wood". the answer is simple--that is the material I have on hand and have experience working. Using 4x4, I have no qualms about strength as long as I have measured right. Right now, my biggest concern is the toplink. In its present condition, it is being held by wooden connectors--something I intend to change today. As soon as I have better right angle connectors, longerr lag bolts, etc. I will attach these.

Pictures will be comming soon.

SI2305

 

[Henri88]

Re: New build almost done!

I really wish you would continue on your previous thread. This is your 3rd thread on the same subject. It is somewhat a little confusing. :confused2:

 

[SI2305]

Prototype toplink

Hi all,

My project is nearing completion, at least in a prototype configuration. At present I am working on getting the toplink in place. This was a little difficult as initially I had no idea just how high up or far back the toplink should be. Eventually, I reverse0enginered the deminsions from my subsoiler and used a 4x4 for the toplink. I noticed a couple of questions as to why I used wood instead of steel for this build. The answer is simple: I have a fair amount of wood lying around, and the 4x4's were cheap. Furthher, I have lots of experience with and tools for working with wood. I have almost no experience working with metal. I decided that the 4x4 stock would be plenty sturdy. Finally, I don't think I will be needing any additional weight.

I attached a couple of pictures of the new toplink. I am going to disasemble it tonight and rebuild it--this time with more metal connectors--90 degree arms, hurricane clips and some heavy lag and carrage bolts. As it stands right now, the actual connection for the toplink is too weak. I think that again, I will use 4x4 stock for the mounting.

In these pictures, I used eyebolts as they seemed to me to be the only piece of hardware I am familiar with that would hold the stresses asociated with its basic function. I realize that I am limiting myself to woodworking hardware (I also realize that the 2x2 if FAR too lightweight for the job.) but I have had good luck in the past and a good sturdy eyebolt seemed tough enough for the task.

I would love any suggestions/hints/or warnings of defects. I still need to put in cross bracing, but please, let me know what you think. Thanks in advance.

Still, I attached a couple of pictures to get the basic idea. I hope you enjoy.



SI 2305 200CX, LX4, 5' grader blade, Subsoiler, Land Pride 60" RFM, 72" rake in the making

 

[SI2305]

Pictures I missed

Sorry guys, I thought I had the pictures attached but obviously I did not. Here is my second attempt.

 

[beenthere]

Re: Prototype toplink

Please keep the thread parts in one thread. Thanks

I am anxious to see how it works for you. Would consider building something similar if it pans out.

 

[SI2305]

Re: Prototype toplink

Sorry about the thread posts. I thought I had the pictures attached on the orriginal, but when I saw what I posted they were missing. This has been my first experience posting pictures so I am a bit confused from time to time. I will keep you informed of my progress. I hope to have the toplink redesigned soon and the arm links attached and ready to go. Thanks for the comments, it is nice to know that someone else considers this as interesting as I do.

SI2305

 

[MossRoad]

I merged as many together in one thread. Hope that helps eliminate the confusion of multiple threads.