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Creating Multiple Lofts from Linear Pattern of Circle Sketches


I'm creating a practice 3D print for tapered heat set inserts to determine the right size.  I'd like to create an array of lofts between various sized circles on a rectangular prism.

Here's my part: https://cad.onshape.com/documents/0fd63e74f8558ca407410cd8/w/150d7ed514b4c73afde5d7d4/e/c63e92e94cc05653e7b3026e

My two questions:
1) how can I create multiple lofts at once? (OnShape only seems to allow me to make one at a time and I can't pattern the feature after)
2) what is the best way to create an array of circles that increase in size by a certain amount at each location in the linear pattern or how can I ungroup them after patterning them to change each of their dimensions slightly 

Any advice is much appreciated!

Best Answer


  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 3,691
    edited January 2020
    You can only make one loft at a time. Patterning should work fine. You can't ungroup a pattern. This may be easier to do using an extrude with draft rather than loft.
    Director, Technical Services, EMEAI
  • owen_sparksowen_sparks Member, Developers Posts: 2,660 PRO
    @NeilCooke Can you do an incremented pattern of a "scale uniformly" feature?  I ask as in the part I've modeled the void for an insert as a solid body and then scaled it before removing it away from the target part by way of adjusting tolerance, but didn't think of the OP's idea of an incremented test piece.
    Business Systems and Configuration Controller
    HWM-Water Ltd
  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 3,691
    @owen_sparks not sure I follow you, but any feature that can be driven by a variable can be incremented in a pattern. If you need any help let me know.
    Director, Technical Services, EMEAI
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