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Did I do okay on this job????

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  • Did I do okay on this job????

    Just curious what other shops would charge to do this job. A-2 strips 1/4 x 3/4 x 48", (47) 10-24 tapped holes,
    (47) from the side, Blind 4-40 tapped holes, (47) .103 dia drilled holes, One Edge milled down to .125. Needs to be fairly accurate. These are feed rails for an automated assembly machine that may need replacement ever year or so.
    They are not very robust in my opinion. The job may repeat

    2 pieces made

    Not including material cost, what would you expect to pay or be payed to make the parts? A special fixture was also made for holding the strips while center drilling and milling.

    Excluding the fixture cost, I made these for $325 for each or $650 total for both. Is that to high, to low or about right? I'm just curious to know what the going rate would be for a job like this. Has anyone made something similar? I worked pretty hard on these.



    Below is a close up picture. Note the 4-40 tapped holes are from the edge and intersect the 10-24 tapped holes.



    Thanks,
    Jim
    Last edited by outback; 05-13-2015, 06:32 AM.
    So much to learn, so little time

  • #2
    That is a lot of farting around.
    I think you charged right.

    -D
    DZER

    Comment


    • #3
      I suspect that just as a machine that would cost thousands in one area would sell for scrap in another, the cost of any given job varies pretty widely regionally. If you're happy, and the buyer is happy, that's what matters.
      "A machinist's (WHAP!) best friend (WHAP! WHAP!) is his hammer. (WHAP!)" - Fred Tanner, foreman, Lunenburg Foundry and Engineering machine shop, circa 1979

      Comment


      • #4
        I'm outside of Chicago. This was a time and material job and I want to be fair to the customer. There is 141 holes in each strip and 94 of them are tapped. Excluding the milled edge that figures out to be $2.30 per hole.

        Here is what the fixture/jig looks like:
        http://img.photobucket.com/albums/v3...ver%20view.jpg

        Another close up of the strip:
        http://img.photobucket.com/albums/v3...hed%20part.jpg

        I need to charge the customer something for the fixture.
        Jim
        Last edited by outback; 05-13-2015, 06:36 AM.
        So much to learn, so little time

        Comment


        • #5
          if you tapped the holes by hand I'd say you were working for free
          https://www.flickr.com/photos/csprecision

          Comment


          • #6
            Legendboy: I'm glad you mentioned that. I have an old drill press setup with a VFD and a foot switch for a spindle reverse. I also made a slip clutch tapping head for small taps particularly 4-40 taps. I made a video yesterday while tapping the A-2 strips.

            Tapping the 4-40 holes:
            https://www.youtube.com/watch?v=RXgshFjNt2U

            Jim
            So much to learn, so little time

            Comment


            • #7
              $650 is 10 hrs and 50 minutes shop time at my day job.What it's worth though is entirely between you and your customer.
              I just need one more tool,just one!

              Comment


              • #8
                Using the standard WAG bid system in place here at Beck's Machine Shop, your price is perfect.

                This is based on the fact that you appear to have no serious injuries inflicted by an irate customer and you are not suffering from the debilitating effects of starvation. This would be a good definition of "proper pricing".



                Seriously, I am with Doozer on this, it seems that there was a rather large amount of time involved, especially for two pieces. I would suspect there was nearly as much time involved in making the jigs as making the parts? Will they be wanting any more parts in the future?

                From my perspective, not only is it impossible to tell many factors it is impossible to tell what the parts may be worth to the customer. Delivery schedule, packaging, customers attitude, etc. all can/should effect delivered price. "Worked pretty hard" translates into how many hours for you?

                I just came in this evening from repairing the hitch on a local farmers grain drill. If he doesn't get the seed in the ground at the proper time, he won't have much of a crop so he was very grateful that I could stop everything that I was doing and spend 3 hours making it possible for him to re-attach the implement to the tractor by repairing the broken hitch. Meaning it was very much worth it to him when I charge 1 1/2 times my standard shop rate of $60.00/hr.

                Dave

                Comment


                • #9
                  I was having a client make some brackets for structural repair from 1/2" thick 8x4 angle. The shop wanted $8 per drilled 7/16" hole (for 3/8" bolts) but could punch 9/16" holes if I changed to 1/2" bolts for $2 each. So much depends on the shop's setup.
                  "Patriotism is the last refuge of a scoundrel"

                  Comment


                  • #10
                    Considering that one oops on any of the tapped holes could scrap the job, maybe too low. Need to recover, without saying as much, some of the cost of the fixture as well. What if the job isn't a repeat?

                    Comment


                    • #11
                      Originally posted by outback View Post
                      Legendboy: I'm glad you mentioned that. I have an old drill press setup with a VFD and a foot switch for a spindle reverse. I also made a slip clutch tapping head for small taps particularly 4-40 taps. I made a video yesterday while tapping the A-2 strips.

                      Tapping the 4-40 holes:
                      https://www.youtube.com/watch?v=RXgshFjNt2U

                      Jim
                      I sure don't like to se the vise lifting like that at the end of the retraction. Looks like a good way to break a tap.
                      ...lew...

                      Comment


                      • #12
                        Sounds about right, Outback.
                        Remember. There is always someone that will do it for less. There isn't always someone that will do it right.

                        Comment


                        • #13
                          Cost IMO would be highly dependent on the tolerances on hole location and milling, etc.

                          As someone else mentioned the vise lifting as the tap is leaving the hole is asking for problems.

                          Comment


                          • #14
                            Originally posted by mickeyf View Post
                            I suspect that just as a machine that would cost thousands in one area would sell for scrap in another, the cost of any given job varies pretty widely regionally. If you're happy, and the buyer is happy, that's what matters.

                            Yup - just depends,
                            My main concern is trying not to "surprise" the customer unless it's less than I quoted,
                            and in fact I will about work for free before I do that unless un-for-see-ables enter into the equation - then it's usually always discussed before making another move,

                            so - did you pre-quote the job and end up sticking to it? was there at least a ball park est. before hand as a rough guide?

                            if so there should be no problems with how the customers feeling about it, that really is job one and in my opinion it's the worker that has to either enjoy the windfall when it comes around and everything goes nice or pick up the slack a little when it don't - If you find that your consistently getting burned then you obviously don't have the hang of giving out a good solid estimate yet...

                            on the flip side - if you find that all's your doing is sitting on your hands all day long then there's a good chance you think way to highly of yourself and work and need to re-evaluate things a little so you can actually get back into reality and be important to people again...

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                            • #15
                              This job was not quoted which is part of the problem. The customer is not dumb, they know about what this stuff should cost so I need to be inside the ball part. Some guy at "Practical Machinist" said he could make these strips of A-2 for $100 each not including
                              material. That comment got me worried about my cost. I told the guy next time I would gladly send him the job if it ever came back. But, his PM box is so full my PM never launched. I think he anther BS'er.

                              If I would have quoted the job I probably would have figure $5/tapped hole. In thick material and larger tap sizes, $8/hole comes it
                              real close.

                              Thanks much for all the replies
                              Jim
                              So much to learn, so little time

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