How to join 2 solids?

VicE_s

Hello, I'm making this crankcase cover, the design is composed of the internal symbol and the outer edge that are connected by lines. Here in onshape the drawing is done well (it seems to me) but when I go to put it in care to make the gcode I have the following problem: the lines that connect the symbol with the outer edge are detected as another separate object (see image ), I need instead to be printed together making it a single block. Is this a problem with my drawing or slicer (care)? And how i can resolve it?
Link drawing: https://cad.onshape.com/documents/e442da7de4e34336149a9fb4/w/b846f8ef9e866e5753636367/e/41292d56587e975fc44165c0

Thanks

owen_sparks

If you look in the lower left hand corner of your Onshape screen you will see you have 13 individual parts. (They are shown in the modelling area too, different parts are different colours) 

Two ways to fix this, assuming the parts touch with no unwanted gaps.
(a) Select the parts you want to join and use the"Boolean" feature with the "Union" option selected to merge the parts together.
Or
(b) Edit the existing features and select the "add" option instead of "new".
Hope that helps, Owen.

owen_sparks

If you look in the lower left hand corner of your Onshape screen you will see you have 13 individual parts. (They are shown in the modelling area too, different parts are different colours) 

Two ways to fix this, assuming the parts touch with no unwanted gaps.
(a) Select the parts you want to join and use the"Boolean" feature with the "Union" option selected to merge the parts together.
Or
(b) Edit the existing features and select the "add" option instead of "new".
Hope that helps, Owen.