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chad fisher

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Posts posted by chad fisher

  1. I have no experience with this particular application but I can tell you to not use Surface Parallel for this.  Surface High Speed Raster with no filter is well capable if everything else is inline, tool, holder, feeds etc...Yes CAMTool does machine the surface data direct but triangle machining (Mastercam, PowerMill, etc..) can produce the finish you are looking for. You can try Flowline on one of those faces if you want, it machines the surface data direct for comparison.

     

     

    Trying now. Thanks for posting this. I will throw some data up after I run this and analyze it under the Zygo

  2. Turn off filter it will still reduce code, but without filter it will be raw code. Maybe out of the normal, but we have worked with customers doing work down to the picometer.  Not sure how you are accomplish what you are doing on a turning machine milling and that as peaked my interest. You said a better finish what are you currently reporting and what are you looking for?

     

     

    You are correct about the the aluminum, grow nickel, then re machine for a molding process. This diamond turning/milling is something I kind of fell into. Its a whole new world of machining and a very small one at that. People tend to be very secretive when they prove a process out or find something that works in their favor.

     

    The machine is a precitech. Its setup like an lathe but with  a  B axis and a milling spindle, its basically a mill tipped on its side. Its a 5 axis machine built on granite, air bearing spindles, and hydrostatic ways. They are very precise and repeatable. Tooling is an actual diamond cutting edge, yes.......... the type of jewelry you buy for the wife.  I am in a situation where the machine is only as good as  the code generated. In a 2D  test its pretty easy to get down into the single digit RA nanometer finishes.

     

    Once we go to 3d and even simple 3d shapes Mastercam will give a banding effect when we check the surface with our measuring equipment.

     

    Thanks for the replies!

  3. Hello

     

    I need some advice on machining this and getting the most from mastercam. Were in the early testing stages of trying to cut this and we are trying to work on surface finish. Needs to be optical quality. The machine is a Ultra precision diamond turning machine. Program is in metric and using a .5mm diamond ball nose. Currently I am only testing on about 4 of the squares using Surface/Parrallel and just using 3 Axis. I will go to multi axis later but I need to get the surface finish better

     

    Material Alum

    35000 RPM

    Step Over .01um

    Total Tolerance .00005

    Line/Arc Filter checked but xy, xz, yz, is unchecked

    One way filtering on

     

    Is there a better toolpath to use? We do not want arcs in the program. We require the code to be broken into .005 micron segments. I know the code is huge but this not a problem for us.

     

    Any help would be appreciated. I know this is out of the normal

     

    scales.jpg" alt="scales.jpg">

  4. MPSUBREP.PST we use this all the time make your first part prove it out then adjust the misc intergers for the other work offsets

     

     

    Years ago I believe I got a Haas post from you to do the same thing. We just migrated to 15 and the post no longer works. Where can I locate this post? Doing all the translating is a pain.

     

    Thanks

  5. I have aq325 sodick as well. Didnt have a clue to edm machining before we got this thing. After a couple weeks it was as easy as pie. The sodick has been a great machine for us and is very easy to operate. Plus it was almost 60k cheaper than that of the Mits.

  6. Anyone have a haas monitor last more than three years? We are now getting to replace our seventh monitor on a different machine. We have even had some that have only lasted as little as 6 months.

    The mini mills seem to be the worst with replacement

    rate.

    We even keep a spare around so when goes we can replace it. When i call Haas today for another replacement i am gonnna ask for a buy two get one free deal!

     

    Sorry all, rant over!

  7. quote:

    Kids in their 20's, if they start now putting 3% or so will retire millionaires. (Assuming moderate risk investing)


    I dunno about that one. I have put into a 401 since i was 22 with 8% and a 4% company match up to 8%.

    I am 28 now and invested risky, moderate, and safley

    and i am not impressed at all with what i currenty have and i am 29 now. I doubt i will see it ever hit the million mark, even if i dont touch it and work another 40 years. But then again starnger things have happened.

  8. quote:

    A kid (19 or 20 ish) came in here last week to deliver some parts... Told me he wanted to get into the Racing business... Gave me his resume then proceeded to tell me that he literally knew EVERYTHING about Racing Engines and building them... He said all you really needed to know was how to "torque stuff"... His exact words. He told me he would have no problem telling people what they were doing wrong, then said he wouldn't sweep floors. Sweeping floors was something people BELOW him were supposed to do. His reason for this was that all the other places he worked that he swept floors, thats all they ever had him do. OBVIOUSLY a true waste of his talent and abilities. I couldn't get away from this guy... He tried to talk my ear off. I told him one of the Dodge teams was hiring.


    The sad part is, that he probably truly believes it.

  9. About a month or so ago I posted needing help on a raster to vec translation. Hardmill helped me out and gave me some geo to start with. It was rough but a big thanks goes out to you Hardmill.

     

    The parts i made were for a friends 30 ft checkmate with twin blown 454's. I made a new swim platform, new air cleaner lids for the K&N's, and engraved all of his valve covers. Below is the out come. I am still polishing some of the pieces then when i am done our idea is to get them blue anodized.

     

    What side projects have any of you been working on?

     

     

    4.jpg

    0.jpg

    1.jpg

  10. Yea........box.........Duh!

     

    4000lbs is size of a large car!

    We run all haas here and i do like them. I run a VF6

    and except for a couple little quirks it has been a good machine for general machining.

  11. Those are the best I could come up with so if i have to spend alot of time i am ready to do so.

     

    Hardmill and Keith.........thanks for taking the time to try for me.

     

    Chad

  12. I hate to have to ask for this but could someone possibly convert two small files using the rast2vec converter, I have a side project I am doing for a friend. There names are Chad1 and Chad2 and are located here

     

    in ppcadcams folder. I know i will have to spend sometime cleaning them up, but i cant freehand draw worth a poop! If anyone can and will do this a big thanks goes out to you.

     

    Chad

  13. This is sickening that they are trying to do away with this program. They did it to my vocational school a year after i had graduated for lack of student interest.

     

     

    Phil this statement below i believe to be so true as my parents tried to do the same but i wouldnt have it.

     

     

    He said that after tooling up our factories during WWII and become the world leader, parents having the best intentions, wanted a better life for the baby boom generation. Becoming Drs, lawyers, scientists, accountants etc. would be a far greater prospect than the dirty hands, sweaty, hard working mfg. and shop trades.

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