LPGS For Kubota B2910

[rswyan]

rswyan,
When I say connect the cylinders together I meant mechanically. Really boils down to keeping these front flat bars in alignment with each other. This is needed to keep the blade straight and with that in mind you could use a single cylinder in the middle if everything is sized correctly. This is similar in function to the torque tube on most fels.

Got it ... thanks.

Perfect example why I prefer to draw it out first and debug before building.

Yup.

The application that I'm modeling in doesn't have inverse or forward kinematics (old version) so it's hard to check the action of the mechanism and the range of motion. Might have to take it into the other software that I used to for rendering and animation which I believe does.

I would think that it would be ideal to get as large a height adjustment as possible.

 

[rswyan]

By my estimates I'm currently at 641 lbs with the new width. That includes the runners, side plates, 3PH frame, tailgate and angles for the blade carriers - including cutting the angles for the carriers down to 4" x 3 1/2", instead of leaving them 6" x 3 1/2".

It does not include any pins, bushings, hydraulic cylinders, hoses, or the steel for the mechanism to raise/lower the blades and the attachment points for the pins for the hydraulic cylinders and 3PH. Probably figure another 75 or 100 lbs for that stuff.

 

[jenkinsph]

So about 750 lbs. for a 6' lpgs is reasonable. After you drill the holes for the grader blades in the angle I would add some small gusset plates in between the holes on the angle iron. That will help with strength and rigidity.

 

[rswyan]

So about 750 lbs. for a 6' lpgs is reasonable. After you drill the holes for the grader blades in the angle I would add some small gusset plates in between the holes on the angle iron. That will help with strength and rigidity.

LOL ... you mean 5' LPGS dontcha ? ... :wink:

 

[rswyan]

... After you drill the holes for the grader blades in the angle I would add some small gusset plates in between the holes on the angle iron. That will help with strength and rigidity.

Ok ...

I can either use some of the 3/8" x 2 1/2" barstock I picked up or I could use some of the 1/2" x 3" drops I'll have after I'm done trimming things down.

 

[rswyan]

On the way back from my steel supplier the other day I stopped by Southeastern Equipment and spoke with the service manager to see if they had any used/scrap cutting edges. No soap ... although they did have some nice new flat cutting edges in stock which looked to be reversible, probably for something other than graders. Didn't even bother asking the price.

Haven't heard anything from my neighbor so he must not be having any luck either.

Still have plenty to do as far as cutting goes, so it isn't really holding me up.

 

[jenkinsph]

The blades are an important part of the lpgs. I would not cheap out on the blades, I would rather skip the add on hydraulics first.

And yes a 54" or 60" sounds more reasonable too.

 

[aerolland]

Got it ... thanks.


Yup.

The application that I'm modeling in doesn't have inverse or forward kinematics (old version) so it's hard to check the action of the mechanism and the range of motion. Might have to take it into the other software that I used to for rendering and animation which I believe does.

I would think that it would be ideal to get as large a height adjustment as possible.

You mentioned 'computer skills' in a few threads back, but if you're comfortable with new things, try Onshape. (do google search, don't know if mods will allow link to source page). It is very similar to full blown Solidworks and ProEngineer, yet free*, read the free policy before you get terribly excited - wasn't a show stopper for me yet.

It allows full top down design with movement and animation - very powerful!

I am using Solidworks as my primary CAD, however, I have played with Onshape a good bit and there is a lot of similarity between the two. Modeling with motion almost takes all the fun out of fabrication in the garage...almost! I am currently working on an add-on thumb function to my BH7500 and a 'mini' Gannon style box blade with movable scarifiers: (separate threads will be started soon, once construction begins)

 

[rswyan]

The blades are an important part of the lpgs. I would not cheap out on the blades, I would rather skip the add on hydraulics first.

No particular plans to "cheap out" ... but I am going to shop for the best value I can find.

If I'm going to pay real money for cutting edges, my inclination is to go with flat industrial cutting edges which are reversible.

It appears there is a guy (wholesalepartsjim) out of Woodland, GA that has a business (Wholesale Ground Engaging Tools) that sells new bolt-on cutting edges for a variety of different industrial equipment for sale on Fleabay. Dunno where they were made or what the quality is tho' ...

I have to figure that anything that is intended for industrial use is probably going to be better in terms of quality, than whatever I could pick up for a box blade from a box store (TSC, Rural King, etc.)

Here's one that I'm looking at:

Case R44592 Center Edge, that is 5/8" thick, 6" wide and 71.75" long,12-bolt-nut

Will probably continue to explore other options as well.

And yes a 54" or 60" sounds more reasonable too.

I figured you would be onboard ...

 

[rswyan]

Very timely ... was just about to start a search for something that has forward and reverse IK that will run on my computer equipment.

You mentioned 'computer skills' in a few threads back, but if you're comfortable with new things, try Onshape. (do google search, don't know if mods will allow link to source page). It is very similar to full blown Solidworks and ProEngineer, yet free*, read the free policy before you get terribly excited - wasn't a show stopper for me yet.

I think this package came up at some point during conversations with a friend of mine that is a designer and is still doing 3D work.

It allows full top down design with movement and animation - very powerful!

Sounds like just what the Doktor ordered ... thanks for the heads up.

I am using Solidworks as my primary CAD, however, I have played with Onshape a good bit and there is a lot of similarity between the two. Modeling with motion almost takes all the fun out of fabrication in the garage...almost!

LOL ... :thumbsup:

Building it in the "virtual world" is sure a lot easier ... :laughing:

I am currently working on an add-on thumb function to my BH7500 and a 'mini' Gannon style box blade with movable scarifiers: (separate threads will be started soon, once construction begins)

:thumbsup:

It looks like it will run (mostly) on the version of FireFox I have installed ... I'll check it out.

Thanks !