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Cutting a pocket into a curved face
peter_pawlak
Member Posts: 8 ✭
Very new to OnShape and CAD in general.... I am trying to cut a small pocket onto the top of this curved piece. I want to remove to follow the very slight curve of the button as a place to index your finger. This would keep the depth the remove uniform across the whole pocket. Picture for reference. I know this is a simple answer and i think my problem is i dont know the correct words to describe my problem and search for it 
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Best Answer
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Optionspeter_pawlak
Member Posts: 8 ✭
Thats the ticket! Didn't think about splitting like thatjelte_steur814 said:like this?
https://cad.onshape.com/documents/f847b45e4b8dd13f24768e3f/v/678cd6cdd06135eeab9a51b4/e/35447f86bfbd9d977a126f17?renderMode=0&uiState=6601854d9dfaa005989bd475 (v1)
BTW. your sketch2 is an ellipse. i would recommend extruded surface from a curved line in sketch 2 (overbuilt) to split part 1. then later put a fillet on the edge. now you're creating a log of unneccesary tension in the top surface.
moreover I tried an extrude from sketch3 with a second extrude direction. (look at my V2: https://cad.onshape.com/documents/f847b45e4b8dd13f24768e3f/v/4c83b6543a45280a45bd8adc/e/35447f86bfbd9d977a126f17?renderMode=0&uiState=660185139dfaa005989bd1de).
this only works if sketch 2 is not an ellipse
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Answers
It would be quicker to make a sample.
https://cad.onshape.com/documents/c069ec0043c31eaf800ead2d/w/d65f61ec176e751ccd0f4a65/e/8073952077a3b2edfcdd5cb0?renderMode=0&uiState=6600af64184b572b8a0914ac
Context: Its a button for a water bottle. I still need to hollow out the inside, but the top has a shallow pocket as an index point for where your finger should push down on the bottom half of the button. Thats the part I'm struggling with; to make a shallow recess that follows the slight contour of the top.
https://cad.onshape.com/documents/15188f9bcb2521f318ee9765/w/22f99635abdbbd1e37fa0487/e/1988f57e04106aebde12ef11
https://cad.onshape.com/documents/f847b45e4b8dd13f24768e3f/v/678cd6cdd06135eeab9a51b4/e/35447f86bfbd9d977a126f17?renderMode=0&uiState=6601854d9dfaa005989bd475 (v1)
BTW. your sketch2 is an ellipse. i would recommend extruded surface from a curved line in sketch 2 (overbuilt) to split part 1. then later put a fillet on the edge. now you're creating a log of unneccesary tension in the top surface.
moreover I tried an extrude from sketch3 with a second extrude direction. (look at my V2: https://cad.onshape.com/documents/f847b45e4b8dd13f24768e3f/v/4c83b6543a45280a45bd8adc/e/35447f86bfbd9d977a126f17?renderMode=0&uiState=660185139dfaa005989bd1de).
this only works if sketch 2 is not an ellipse
https://cad.onshape.com/documents/c069ec0043c31eaf800ead2d/w/d65f61ec176e751ccd0f4a65/e/8073952077a3b2edfcdd5cb0?renderMode=0&uiState=6601887c5c67b60413582ff3
Here are some pics of the piece i'm trying to recreate as a learning exercise. Just stuck on creating the indent on the top.
Or perhaps this? Loft remove an oval profile using guides.
After seeing the pics you posted.... here is my second try.