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1-Visitor
December 1, 2013
Question

Making a simple mould from an object

  • December 1, 2013
  • 16 replies
  • 11331 views

PTC Creo can perform Boolean operations on shapes and subtracting an object from a block of material creates an exact negative or mould.

    Mould_transparent.png Finished Mould.png

The attached document explains how to do this.

    16 replies

    1-Visitor
    April 4, 2014

    Hi Tim,

    The timing of this is just right as we are wanting to produce moulds for our injection molding machine to produce jewellry.

    In a discussion today I was asked if Creo has the abilty to produce a 3D model from a drawing as can be generated in ArtCam and the recent RhinoEmboss?

    The use of an image on a work plane as a guide to modeling the item from scratch using Sketch/Extrude or Freestyle/ProConcept was deemed too involved.

    The hope was to introduce this as a project from Whit onwards.

    Any suggestions advice welcome.

    Regards,

    Jonathan.

    1-Visitor
    April 5, 2014

    I haven't seen the ArtCAM or Rhibno techniques so cannot comment on those.  There are apps that will create a point cloud/surface model from multiple photos but the resulting model is unlikely to have the dimensional accuracy or editable geometry of a parametric model.

    I am surprised by the comments that sketches on datums are too involved.  Have those commenting seen the freestyle demonstrations like the vacuum cleaner nozzle on YouTube?  A search for 'Creo freestyle' has loads of examples.

    1-Visitor
    April 7, 2014

    Hi Jonathan

    As Tim says I can't see any problems with bringing in the sketch, we do this with our year 7s to poduce pencil toppers and jewelery, they find it quite easy to sketch round using spline tool or freestyle.

    then to convert it to a mould is quite straight forward from then on.

    hope this helps

    Jeremy

    1-Visitor
    April 7, 2014

    Allright, couldnt let it go and finally got it working!

    In my case I had to change two settings to get it to work in CREO 2:

    1. file --> Options --> Assembly --> Components permitted for external reference: all

    2. file --> Options --> Configuration Editor --> IGNORE_ALL_REF_SCOPE_SETTINGS YES

    Do not save these settings because you will get in trouble later with dead references.

    cheers.

    1-Visitor
    April 7, 2014

    http://communities.ptc.com/message/230368#230368

    08-Jan-2014 02:38

    Creating a mould cavity

    have alook at this thread of mine, hopefully you will find the answers there, below is a mould and guard made for a trophy model.guard.jpgmold2.jpg

    1-Visitor
    April 7, 2014

    I will pass this on,  especially since you refer to year 7's, the teachers in question have year  8 classes.

    Regards,

    Jonathan.