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Fillet on the edges of a Linear Pattern

gijs_kunzegijs_kunze Member Posts: 2
I'm trying to design a simple part which is configurable in multiple different configurations. The purpose of the part is to hold a specifiable number of pens and that number is used in a linear pattern feature. For example here is the part when set to 1:
Or 4:


This works fine, various configuration value changes work exactly as intended. But if I want to add a chamfer to the ends of the part I run into issues. Specifically I want to add one to the two curves at the left and right ends of the part. Adding the chamfer to the leftmost curve works fine as that one is part of the original part, but the right curve is part of the final instance of the linear pattern and therefore the curve differs whenever you change the number of instances. Therefore when you change the number of instances you'll end up with:



My question is, how do I achieve this chamfer while still retaining the functionality of the configurations.


Note, I'm very new to OnShape (or CAD in general) and the primary reason for me to make this part was to learn various features so if you happen to see any other mistake or have suggestions, I would be very appreciative.

Best Answer

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    eric_pestyeric_pesty Member Posts: 1,633 PRO
    Answer ✓
    Had a very quick look and seems pretty good (you shared via link so we can't make a copy to see exactly what you are doing).
    My advice would be to configure the length of the base shape (extrude1) and pattern the hole feature (instead of pattern the whole body, then you would be able to do the fillet on both ends of extrude1).
    I would also change things around to remove the errors when unchecking "screw fasteners". You could add all the affected features to the config table (but that might be a bit tedious as there are quite a few) or you could instead NOT suppress the "Single fastener" extrudes/fillets, and instead just do a "delete part" to get rid of the "seed" feature and configure that and the linear pattern2.

    You could probably have used a counterbore hole feature for the mounting holes (but the way you are doing works and gives you more control...)

Answers

  • Options
    eric_pestyeric_pesty Member Posts: 1,633 PRO
    Answer ✓
    Had a very quick look and seems pretty good (you shared via link so we can't make a copy to see exactly what you are doing).
    My advice would be to configure the length of the base shape (extrude1) and pattern the hole feature (instead of pattern the whole body, then you would be able to do the fillet on both ends of extrude1).
    I would also change things around to remove the errors when unchecking "screw fasteners". You could add all the affected features to the config table (but that might be a bit tedious as there are quite a few) or you could instead NOT suppress the "Single fastener" extrudes/fillets, and instead just do a "delete part" to get rid of the "seed" feature and configure that and the linear pattern2.

    You could probably have used a counterbore hole feature for the mounting holes (but the way you are doing works and gives you more control...)
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