CDP BACKHOE BUILD

[GT2]

This is off subject but what hole saws do you guys recommend for boring in steel?

I have used high dollar and low dollar saws with pretty equal success.
While the high dollar saws are usually constructed better, a decent low dollar saw will work, providing: Slow the speed down and use cutting fluid!

 

[Kernopelli]

I have used high dollar and low dollar saws with pretty equal success.
While the high dollar saws are usually constructed better, a decent low dollar saw will work, providing: Slow the speed down and use cutting fluid!

Same here, I have bought Black and Decker, which were very good BTW, Morse, Rigid and Milwaukee and they have all been good. Slow and cool is the key to longevity. In fact, I am still using the B&D bits (I've never had to resharpen after hundreds of holes) and arbors and just replaced the saws.

 

[SLOWMANDOWN]

Just about 2 weekends lost on other responsiblities than the backhoe work.
1 item or say tool which does not get to be taked about much in discussions about building a backhoe and for that matter is a sturdy level welding table. So I had to spend a good deal of spare time fabbing a table, which unfortunately I have not completed. (need to get 3/8 inch plate for top)
I also spent a great deal of time grinding and cleaning boom and dipper arms. Progress is slow, but I need to be patient, do good fit up and resource economical material ( ie: plate for table top, $270 cdn, for sheet 4 x 8 , wow). I included some pics.

 

[SLOWMANDOWN]

Made some progress lately on my project. First the table is finished. 2nd the bucket is done except for one bushing. Tacked up the boom, and aligned the cylinder plates. I'll weld it up when I am sure that the fit and movement with the swing piece is correct. Started to put together the frame and swing part. Progress is slow as family and work commitments have taken up most of the free time. I only hope is that I will finish the hoe in time to dig my water entrance.

 

[J_J]

SLOWMANDOWN

Is this going to be attached to a tractor, or tow behind with the engine and hydraulics.

I built mine to attach to the front of my Power-Trac.

 

[SLOWMANDOWN]

It will have a seperate power source which will be on axle and rims which can be towed. But I'm building it so it may also can be attached to my 3 pt hitch on my tractor.

 

[SLOWMANDOWN]

J_J I do not see the swing cylinder. Does your hoe swing, or is it fixed positioned.

 

[J_J]

J_J I do not see the swing cylinder. Does your hoe swing, or is it fixed positioned.

The fronthoe is not finished yet, It is advertised for 160 degrees swing, and I am trying to figure out a way to go 180 degrees. I am thinking about a chain on the bottom rotated by a hyd cylinder. I also added some more length to each arm, and I have several buckets plus a grapple. One day soon maybe. Do you have your joystick valves yet? Both surplus Hydraulics, and Baileynet.com have some good deals on the joystick, with PB.

What you have done so far, is looking good.

 

[SLOWMANDOWN]

No. I am starting to price the valves now. I will check the web sites you suggest today. Keep in mind that the prices will be converted to Canadian dollars and depending on the exchange rate might increase substanially. I am still looking at using a 2 stage pump as I have one lying around, rather than buying a 4-5 GPM pump. I believe that you can by pass the low pressure section of the pump and only use the hi-pressure section. Not sure how that is done.

 

[SLOWMANDOWN]

I have a question on the frame. Between the upper and lower plates of the swing part which connects to the frame it is left hollow and open. Should this not be boxed in and strenghten some how. My idea was to turn the tube I placed for trial fit and see on end and cut to size weld in place. That way there will be more support and be box in so muck does not accumulate. Or is there a reason that this area needs to be left hollow. I am thinking to order this valve (see attached). Will this work.