Forum: General Discussion
03-22-2011, 05:01 PM
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Replies: 13
Views: 4,876
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Forum: Big Boys of the road 4x4/6x6/8x8/10x10 Trucks
03-20-2011, 07:31 PM
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Replies: 204
Views: 163,744
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Forum: Construction Equipment Tech
03-20-2011, 11:16 AM
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Replies: 49
Views: 23,196
Re: DIY Hyd Pump
I already have a Sunnen hone and some small mandrels, just have to relearn how to use thing again, been awhile.
Slowly but surely I'm piecing together whats needed for pumps etc. Will have to get...
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Forum: Construction Equipment
03-19-2011, 11:28 AM
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Replies: 710
Views: 496,554
Re: 1/16 Bucyrus-Monighan Walking Dragline
Yeah, these little Arduino boards can also be set up with real time feedback as well as they communicate both ways. So things like winch motor temp or something could be monitored at the controls.
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Forum: Construction Equipment
03-19-2011, 11:21 AM
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Replies: 710
Views: 496,554
Re: 1/16 Bucyrus-Monighan Walking Dragline
I haven't gotten too much into the Xbee cards yet (the wireless portion of the combo), but I do believe its like the 2.4ghz radios in that they have to be bonded together and are on a code to...
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Forum: Construction Equipment
03-19-2011, 10:49 AM
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Replies: 710
Views: 496,554
Re: 1/16 Bucyrus-Monighan Walking Dragline
Yes,the Xbee wireless is on a bluetooth frequency, some of the more powerful ones have a 1 mile LOS range.
The Arduino board is a computer programmed logic controller board with (depending on...
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Forum: Construction Equipment Tech
03-19-2011, 10:39 AM
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Replies: 49
Views: 23,196
Re: DIY Hyd Pump
An internal relief on the pump is no big deal, neither is an external one for that matter. I can see alot of different valves that could be made eventually to give more options similar to what is...
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Forum: Construction Equipment
03-18-2011, 09:18 PM
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Replies: 710
Views: 496,554
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Forum: Construction Equipment
03-18-2011, 05:16 PM
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Replies: 710
Views: 496,554
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Forum: Construction Equipment Tech
03-18-2011, 11:01 AM
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Replies: 49
Views: 23,196
Re: DIY Hyd Pump
Once I get a pump built a standalone relief valve would be an easy next project.
I like the idea of a belt as well, just cause most of these motors are running so **** fast, if it could be geared...
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Forum: Construction Equipment Tech
03-17-2011, 02:42 PM
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Replies: 49
Views: 23,196
Re: DIY Hyd Pump
Well if all works as I'm hoping it wouldn't be long after getting the first pump designed, I'd look into a slightly larger version.
Would brushless motors be preferred over brushed? I haven't kept...
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Forum: Construction Equipment Tech
03-17-2011, 11:39 AM
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Replies: 49
Views: 23,196
Re: DIY Hyd Pump
Ok, starting to get an idea of what you guys want in a pump (or pumps). I'm trying to find a good motor that would be a bit slower rpm which would help everything last a bit longer and getting some...
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Forum: Construction Equipment
03-15-2011, 03:18 PM
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Replies: 7
Views: 2,932
Re: Kid Stuff
Looks like fun time. Although it probably wouldn't be long before I had electric motors hooked up ;)
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Forum: Construction Equipment Tech
03-15-2011, 03:00 PM
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Replies: 49
Views: 23,196
Re: DIY Hyd Pump
Well it will take a bit of time to finish up the work I have in the shop now and build a prototype and run it on a test stand for a while. And yes eventually I would probably look into valves and...
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Forum: Construction Equipment Tech
03-15-2011, 01:45 PM
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Replies: 49
Views: 23,196
Re: DIY Hyd Pump
Ok, I sourced a bad pump to start a new design off of. Looks like I should have the needed equipment to make similar pumps, with possibly some added features or options.
Couple more questions for...
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Forum: Anything RC Picture and Video Gallery
03-14-2011, 03:36 PM
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Replies: 0
Views: 4,375
My hot rod
Couple pics of my hot rod. My painting skills leave alot to be desired, but oh well. Has some custom front wheels I cnc milled back when I was learning how, as well as a custom lowered front axle. It...
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Forum: Construction Equipment
03-14-2011, 02:18 PM
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Replies: 303
Views: 118,578
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Forum: Metal forming & tools
03-11-2011, 12:18 PM
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Replies: 9
Views: 5,321
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Forum: Construction Equipment Tech
03-07-2011, 11:58 PM
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Replies: 18
Views: 11,668
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Forum: Construction Equipment
03-05-2011, 11:34 AM
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Replies: 394
Views: 382,016
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Forum: Construction Equipment Tech
03-05-2011, 11:05 AM
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Replies: 19
Views: 7,651
Re: Hydraulic Motor Temperature
I wonder is a small enough pressure switch could be tied in to run the esc of the pump motor control, thus changing motor speed to just enough to keep the pressure constant?? This would work...
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Forum: Construction Equipment Tech
03-04-2011, 11:23 PM
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Replies: 19
Views: 7,651
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Forum: Construction Equipment Tech
03-04-2011, 05:28 PM
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Replies: 19
Views: 7,651
Re: Hydraulic Motor Temperature
The pump is a "fixed displacement" pump
The valve is most likely a closed center, meaning the center neutral posistion is closed to any oilflow. You can also get valves (not sure about in the small...
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Forum: General Discussion
03-04-2011, 12:17 PM
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Replies: 3
Views: 1,461
Re: Interesting old video
Is good info on the diffs.
I like this video on how the CVT transmissions work in the Fendt tractors. Would be a fun project someday to make a mini one to run a large scale RC with ;)...
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Forum: Construction Equipment
03-01-2011, 09:09 PM
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Replies: 710
Views: 496,554
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