I am in the process of modeling a crankcase in order to assemble 2 cylinders of 500 2 tps.
My concern is at the level of transfers, let me explain, how to get these curved surfaces in thickness with all the rest of the crankcase?? In other words, the rest of the crankcase will be in function of bosses - extrusion and material removal - and these transfer surfaces - in blue selection on the image sent - how to recover them? In advance, sorry for not being clear enough!!
But on this forum I know that there are enlightened users!!
If you want to define geometry in volume, the easiest way is to use the volume smoothing functions, adding and removing material. All you have to do is define suitable sketches and guide curves. Optionally based on the boundaries/edges of your transfer surfaces.
Below is an image to illustrate the speech... And the file of the document in attachment (v2018).
I'm coming back to you for these "famous transfers", I'm following m.blt's procedure, certainly not as it should be, because the smoothed material removal function doesn't work, and I can't interpret the error message... I have a slow brain
Attached is a screen print and the sw 2016 file - see at the end of the creation tree for the function in question-
Here's what you need to understand about the error message: Guide cover X (element selected in Purple) does not cross the section (element in blue sketch 34). The ends of the purple elements must be constrained of the "meeting point" type with the blue elements,
In a smoothing, the guide curves must intersect the profile curves. No approximation possible. Your curves are drawn freehand, it seems. I forced the coincidence by removing the verticality constraints and it works very well.
Do you print in 2 half-shells? A question of idiots: won't this weaken the final part (how will the 2 pieces be linked?) and what about the precision of the bore (even if it is planned to take it back in machining later)?