+ Reply to Thread
Results 1 to 5 of 5
  1. #1
    Forum Newbie
    Using
    Solidworks 2013
    Join Date
    Jun 2018
    Posts
    3

    Default need help measuring piece

    Registered forum members do not see this ad.

    hi there, i am new to solidworks, been teaching myself, i have been able to kinda make small basic shapes but i am still learning. i did not go to school for any of this and not very good at math but i try to research. i need help to measure this, i think from my research the top and bottom parts are considered arches. i need to measure the perimeter so i can import the shape to solidworks but just having a hard time because i need a piece to be cnc'ed for this so i cant have room for error on this as this is my first time trying to reverse engineer or just copy a basic shape.


    need help.jpg

  2. #2
    Forum Newbie
    Using
    Solidworks 2013
    Join Date
    Jun 2018
    Posts
    3

    Default

    i guess if anything my main question is, how would you guys measure the red lines or where all of the arrow points in trying to recreate the shape in solidworks

  3. #3
    Senior Member lrm's Avatar
    Computer Details
    lrm's Computer Details
    Operating System:
    Windows 7 64-bit
    RAM:
    16 GB
    Discipline
    Education
    lrm's Discipline Details
    Occupation
    Teacher, AEC and mechanical
    Discipline
    Education
    Details
    Civil and Mechanical
    Using
    3ds Max 2017
    Join Date
    Jan 2010
    Location
    Massachusetts, USA
    Posts
    377

    Default

    You state " i cant have room for error". Whenever something is measured there is error. The question is how much error is acceptable and what process would help to achieve the necessary level of precision. I would use the calipers you have n the image to measure the overall width and height. I would make a plot of several concentric arcs with a variation in radii of perhaps 0.05" in a range that you determine to be close to the radius of the top and bottom. Slide the piece on top of the plot and see if you can get one of the concentric arcs to line up with the part. More likely than not the corners are 45° chamfer. Plot a straight line with a line that intersects it at 45° and see if it is a good fit.

    BTW, "The Measure of All Things" by Ken Alder is a great book on how measurement error was first addressed in a formal manner. It is a great read.

  4. #4
    Quantum Mechanic BIGAL's Avatar
    Using
    Civil 3D 2016
    Join Date
    Dec 2005
    Location
    GEELONG AUSTRALIA
    Posts
    10,577

    Default

    Like Lrm draw a rectang the size of the outside width and height.


    Lay a ruler on the straightest side, second ruler measure up to the Chamfer point. This is what you would use for the chamfer command which will draw a corner at 45.
    A man who never made mistakes never made anything

  5. #5
    Forum Newbie
    Using
    Solidworks 2013
    Join Date
    Jun 2018
    Posts
    3

    Default

    Registered forum members do not see this ad.

    thanks guys, I will attempt to measure it, I did the first one and 3d printed and I can see my errors big time. when I said no error I mean just as close as possible because I need a place to machine it, and if I get it wrong it won't fit over the sleeve thats all.

Similar Threads

  1. How to complete this PIECE by using tangency ?
    By moce in forum Student Project Questions
    Replies: 8
    Last Post: 18th Feb 2012, 05:45 pm
  2. Making a two piece die
    By gbradley in forum Autodesk Inventor
    Replies: 5
    Last Post: 26th Aug 2010, 07:11 pm
  3. how do I piece together 2d drawings into inventor?
    By SadisticIron in forum Autodesk Inventor
    Replies: 6
    Last Post: 4th Aug 2010, 04:41 pm
  4. I cannot fillet my piece.
    By fragmir in forum AutoCAD 3D Modelling & Rendering
    Replies: 3
    Last Post: 27th Jun 2010, 05:17 pm
  5. how to model a piece
    By ivank in forum Autodesk Inventor
    Replies: 4
    Last Post: 22nd Apr 2009, 09:04 pm

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts