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Construction Equipment If it digs, pushes, hauls dirt "off road" post it here. |
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#1
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Looks nice, huch much time do a part like that take in programming, preparation and production??
Dan |
#2
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Re: 1/16 Bucyrus-Monighan Walking Dragline
HA HA! I spent about 8hrs yesterday fine tuning the program and producing the part and like I said;my endmill was dull and I took lighter .030'' cuts 1.2ipm feed on my pockets. The outside had 435 events. The inside had less because there wasn't as big of a area to machine. I didn't get any pictures of the inside. I sure hope the other three pieces don't take 8hrs each That reminds me, I want to order a new carbide endmill to do the others.
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#3
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Steve that is some very nice work as usual from your shop. Ed
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#4
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Re: 1/16 Bucyrus-Monighan Walking Dragline
Quote:
How many channels does that take to run? Looks like you got a couple inverters for the 12v? or 24? Could you take a brief min. and kinda explain to me how the machine is wired? like inverter to? to? and motor goes to? and so on. You can PM me if you don't want to clutter your thread up. I'll have a bunch of ? Thanks Matt |
#5
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Re: 1/16 Bucyrus-Monighan Walking Dragline
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As far as channels, I'm using 3 : dragging/walking,hoisting, swinging, I will need a couple more to set the drag and walking brakes.One for the walking jaw clutch. Maybe another for turning the lights on off. Horn? I have a DX7 radio (overkill) 110VAC Power is run into the tub then through a 6 conductor slip ring. then the power goes to a relay that is manually controlled back at my power box for safety purposes to kill it if something happens or someones fingers get in there. After the relay the voltage is fed to the 3- 90VDC 4 quadrant regenerative drives and a 5VDC power supply. The RC part comes from the 3 ESC's attached to the reciever and then each is individually wired to the 3 regen drives. Power to operate the Receiver and ESC'c comes from the 5VDC power supply. The ESC's put out a +5 or-5V signal and that is fed to the drives and they start when the voltage comes in. The drives are then wired to three 90VDC perm. magnet motors,1/29hp=hoist 1/17hp=swing 1/8hp drag/walk. The whole deal draws only 1.5a not to mention when I'm lowering the hoist, I'm generating power back into the incoming 110VAC line. Pretty simple only took me 8yrs and a bunch of $$ and trial and error. My big plan is to hard wire the whole machine and control it with the original operators controls from a 1:1 machine. All I have to do is pull all the electronics off and put them back to my operators station and put a slip ring in with more conductors. I could also tear apart my radio and install the pots on the stick to my 1:1 controls. RC just made it alot easier to do. |
#6
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Re: 1/16 Bucyrus-Monighan Walking Dragline
A little more update on the boom point this past week.
Four sides now done. |
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