Roundng of edges on complex surfaces

alberto_ferraroni

Dear Onshape Community,
I need to round some edges on a surface made by different splines. The fillet command seems not to work in this specific case. Does anyone has an idea how I could do? My idea is to round this surface (wing tip):



Here is the link to the part Studio:
https://cad.onshape.com/documents/41f5dbd616e27d35acc7eb34/w/7a352171e6e4446fdb6e5c25/e/b81bc5c07da71252439f65e4

Thank you all for your support
Alberto 

wayne_sauder

@alberto_ferraroni
  If you are just trying to round off the sharp edges then try the fillet tool, uncheck the box for tangent propagation and reduce your radius below 1 mm. Then start playing with edge selection until you get a decent result. 
  If you want a full round on the end of your wing, I think you will need to do that with a loft using some guides. 

alberto_ferraroni

Thank you for your answer. I guess that the fillet function will not work but I will try again. If it does not work I will try as you suggest with a loft (I have still to figure out how exactly).

nicholas_radzykewycz

The filet command fails whenever it gets stuck in a narrow area between two adjoining edges like the tips of your wing. I played around with it a bit and got it to work:

Link to updated model:

https://cad.onshape.com/documents/48130962e0369955a7d06bb0/w/670115eab95696e6a1bc33e6/e/286bde24ade9377e90b633b5

Alternatively if you don't like it messing with the front edge I would draw out the rounding geometry you want and then perform a sweep remove to clean up the edge the way you want.

alberto_ferraroni

Great thank you all for your suggestions, I will make some tries but at least I know that with the fillet function I can obtain something.