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Field Machining

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  • Field Machining

    I was just wondering if anybody here is ,or has done field machining. I myself just got into it 4 months ago and find quite interesting and the money is about 4X that ,than being in a shop.

  • #2
    Interesting and fun if you like to travel - and have a huge warehouse full of specialized equipment.


    • #3
      Originally posted by MR.0001"
      I was just wondering if anybody here is ,or has done field machining. I myself just got into it 4 months ago and find quite interesting and the money is about 4X that ,than being in a shop.
      I guess it depends on what you call ''field machining'' I would simply call it puting together other peoples junk that you have to rebuild so it works and looks like the plans when you are done, after all the customer shouldn't have to suffer because the manufacturer he chose was the low bidder and hasn't a clue as to what ''shop machining'' is. Around here it seems the only thing that gets a 4X multiplier is the work. .


      • #4
        That was my father's business until he retired and sold the business in 1968. He or other employees would take a trip sometimes out of the country to repair a ship's engine. Main procedure was cut through the deck set up a hoist to pull out the crankshaft or some other obnoxiously big part. You bet the pay was good. We lived large. No end to the jobs since for some reason this is a neglected niche in the business. I tagged along on summer vacations. One that I remember very well was a trip to Puerto Rico for repairs on Custeau's Calypso which was a Navy surplus mine sweeper. All wood so getting through to the engine was a hell of a job. They hired ship's carpenters for that one.


        • #5
          i work up in Fort McMurray Alberta ,Canada my Field machining consists of of mainly pipe cuts, flange facing and drilling


          • #6
            Don't disparage protable machining. I did a lot of it myself back in olden times. I served my apprenticeship in a shipyard. Many element on a ship have to be machined in place like boring to final size and alignment rough machined parts welded into place like stern tube and strut bearing bores, Bores for rudder stocks. facing off foundations for machinery, facing a million flanges, drilling a million holes, etc. It's all finicky work too with close tolerances held on large features and bores. Naturally the job doesn't go as quick as equivalent work in a large well equipped shop but the job does get done.


            Here's an outfit that conducts large scale machine shop operations on site working to close tolerances with portable equipment. They hosted a scraping class I taught in 2005.
            Last edited by Forrest Addy; 06-07-2008, 02:08 PM.


            • #7
              field machining

              I've done some;
              Turning lime kiln trunnions with a shop made portable lathe, while the kiln was running.

              Turning large steam valve seats in place with a specialty machine.

              Using a portable boring bar to linebore inside diameters from 1-1/2" up to about 14" using several different rented and shop built tools.

              Renewing large tapered bearing journals for paper machine dryer drums, up to about 11" OD with a portable Journal Squirrel.

              It is interesting work but sometimes the work enviroment has left something to be desired.


              • #8
                Yep, I go out and machine my field each year when I put my garden in. I just got to do it last week because it was so wet here. I machine the field and the wifey plants the crop.
                It's only ink and paper


                • #9
                  Well, my shop is in a trailer right now so perhaps I am set to go. So how do you get the work? Where do you advertise?
                  Paul A.
                  SE Texas

                  Make it fit.
                  You can't win and there IS a penalty for trying!


                  • #10
                    Here is an example of the sort of field machining that is done a lot around here. This is being done in the shop but could be done anywhere.

                    Free software for calculating bolt circles and similar: Click Here


                    • #11
                      I watched a couple of guys line bore a pivot for a landing gear on a P51 mustang Called Gunfighter.

                      The only way to do it was in the wing.


                      • #12
                        field machining

                        I also have turned the tire and trunnions on a cement kiln in Edmonton AB. took a lathe bed and carriage from the shop and used a star wheel and striker for the feed.
                        The difficult done right away. the impossible takes a little time.


                        • #13
                          I did bearings mounts for a bow thruster on a small tug boat.Hot as hell and real tight working conditions,best part was I couldn't see what I was doing!I was on one side of the bulkhead the cutting was on the other side,batteries in radios died,had to knock on bulkhead to communicate with boss on the other side,came out beautiful!