Need help w/ Centroid Digitized File into AutoCad
Close
Login to Your Account
Likes Likes:  0
Results 1 to 11 of 11
  1. #1
    Join Date
    Sep 2012
    Location
    Cincinnati
    Posts
    243
    Post Thanks / Like
    Likes (Given)
    5
    Likes (Received)
    46

    Default Need help w/ Centroid Digitized File into AutoCad

    I'm just learning how to digitize with my Centroid M400 control. I use AutoCad 2010 Mechanical 2D. I am not familiar with Cam programs at this time - still learning. I am on the low end of competent with AutoCad 2010 Mechanical - don't know much about the advanced features.

    I do have a copy of 2008 MasterCam that I have never used. Can that help me?

    I've got a job that I need to digitize. I ran a test part and cannot figure out how to get it into AutoCad.

    Centroid saves the digitized file as a .cam extension. When I export it, I expected a .dig file but instead it saved it as a .txt file (see below). Its not a .csv file, but a text file - looks like x, y and z values. Honestly not sure what I would have done with the .dig file either.

    Can anyone point me in the right direction to get the digitized file into AutoCad 2010?


    digitized.jpg

  2. #2
    Join Date
    Apr 2018
    Country
    UNITED KINGDOM
    Posts
    2,831
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    1316

    Default

    Quote Originally Posted by markz528 View Post
    Can anyone point me in the right direction to get the digitized file into AutoCad 2010?
    Maybe toss up a photo of the part ? I don't think anyone is going to graze through all those points to see what you're talking about.

    If it's a swoopy shape, search "import point cloud" for some hints. My neighbors used to do something similar and there was quite a bit of hand massaging to get a happy ending.

  3. #3
    Join Date
    Sep 2012
    Location
    Cincinnati
    Posts
    243
    Post Thanks / Like
    Likes (Given)
    5
    Likes (Received)
    46

    Default

    Thanks! Looks like my version of AutoCad does not support point clouds. Looks like 2014 is the oldest version that supports it.

    The attached file is just an example. I need to digitize a cylinder head surface to make a valve cover adapter.

  4. #4
    Join Date
    Sep 2017
    Country
    UNITED STATES
    State/Province
    Wisconsin
    Posts
    794
    Post Thanks / Like
    Likes (Given)
    124
    Likes (Received)
    429

    Default

    Keep in mind that the controller is probably not scaling its output (to the appropriate location based on probe stylus tip radius). I've brought point clouds into Fusion 360 and turned them into surfaces, then subsequently into solid models. It is cumbersome, and the scaling features aren't there to do it right. Many digitizing machines are meant to work with a software designed specifically for things like point cloud scaling, whether a CMM or a VMC with a probe.

  5. #5
    Join Date
    Dec 2002
    Location
    Pacific NW
    Posts
    5,137
    Post Thanks / Like
    Likes (Given)
    8
    Likes (Received)
    844

    Default

    Not sure if this will help you.... when I bought the probe for my Centroid M400 there was a program included called Mold Magic. I believe the function of the program was to create a mold or die to reproduce the reverse of the scanned part. Like if your scanned item was a female cavity it would generate a program to make a matching male version.

    A few years back I tried to run Mold Magic on my Win10 desktop and it wouldn't run. I know it did run on my old Win7 system at the time I purchased the probe. I never actually used the program, only installed it to what it could do. Centroid help folks told me they no longer supported Mold Magic beyond Win7 since most users had high end CAD/CAM that could utilize the point cloud.

    Maybe you could find a copy. Al Depaulo from Centroid who is on this forum might be able to help, give Centroid office a call and ask for Al.

  6. #6
    Join Date
    Sep 2012
    Location
    Cincinnati
    Posts
    243
    Post Thanks / Like
    Likes (Given)
    5
    Likes (Received)
    46

    Default

    Thanks for the suggestions.

    I don't know if I can call it much progress, but I was able to at least see my scan using CloudCompare (see below). But when I convert it to dxf I still cant see it in AutoCad.

    cap.jpg

  7. #7
    Join Date
    Sep 2012
    Location
    Cincinnati
    Posts
    243
    Post Thanks / Like
    Likes (Given)
    5
    Likes (Received)
    46

    Default

    Quote Originally Posted by Doug View Post
    Not sure if this will help you.... when I bought the probe for my Centroid M400 there was a program included called Mold Magic. I believe the function of the program was to create a mold or die to reproduce the reverse of the scanned part. Like if your scanned item was a female cavity it would generate a program to make a matching male version.
    Well according to my receipt, I have Mold Magic. I will try that. If I can't figure it out I will be calling Centroid in the morning.

  8. #8
    Join Date
    Sep 2012
    Location
    Cincinnati
    Posts
    243
    Post Thanks / Like
    Likes (Given)
    5
    Likes (Received)
    46

    Default

    Well - success!

    I was able to open it in MasterCam and convert to a dwg so I could open it in AutoCad. But it wasnt great as it was just dots that were hard to deal with.

    Much better solution was using Fusion 360. My cousin helped figure it out. Converted the .txt file to a .csv file in Excel. Was able to import that into Fusion 360 and then export as an AutoCad .dwg file. I can use it in 2D and it is properly scaled.

    I'm rolling now............

    fusioncap.jpg

  9. #9
    Join Date
    Dec 2002
    Location
    Pacific NW
    Posts
    5,137
    Post Thanks / Like
    Likes (Given)
    8
    Likes (Received)
    844

    Default

    Hmmm... thinking about this, what do the points represent? Are they the edge of the part taking into consideration the diameter of your probe tip or are they the location of the probe tip's center when contact was made?

  10. #10
    Join Date
    Sep 2012
    Location
    Cincinnati
    Posts
    243
    Post Thanks / Like
    Likes (Given)
    5
    Likes (Received)
    46

    Default

    I am quite certain that it is the center of the probe. I will know soon enough - my first head scan is converting - its slow. But when I probe holes, slots, etc. it gives me actual size.

    For what I'm doing I don't need extreme precision. I probed the calibration standard that came with the probe and at 1 inch its 0.001 inch off or so - will deal with that later.

  11. #11
    Join Date
    Sep 2012
    Location
    Cincinnati
    Posts
    243
    Post Thanks / Like
    Likes (Given)
    5
    Likes (Received)
    46

    Default

    Getting smarter.........

    As Emanuel said, it takes a lot of hand massaging.

    I will post some pics later, but the outside scan (takes about 2 hours) is quite good and it automatically compensated for the probe tip diameter. It did exactly what I needed from it, but needed some massaging.

    The inside scan is another story. Appears that the probe tip compensation is backwards as the profile is smaller than its supposed to be - in the Y direction actual rough measurement was around 5" and it showed approximately 4.5" with the scan. I did it twice with the same results. The machine automatically determines if it is an inside or outside scan - not an user input on the scan I was using.

    I'm working with Centroid to get an answer on what is going on.


Tags for this Thread

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
  •