Impossible to draw in OnShape?

peter_cuthbert

Good Evening Folks

As a very green user who is making some satisfactory progress thanks to help from this forum, I thought it would be fun to lob a problem out for discussion.  The object in the attached picture is the grate for the monotube steam boiler that I am proposing to build. It is designed to burn the re-cycled waste wood block sold in supermarkets everywhere. I really don't know how my friend who built the prototype made the object, but he has seen my 2D drawing and agreed that I had captured the essence of it.  However, I want to draw it in Onshape, but in my head that is an impossible task.

Would anybody like to take on the challenge and prove me wrong, hopefully also showing how you did it, thus expanding my knowledge of the software.

Regards

Pete

GWS50

This is very rough..... and just a thought to give some idea of one possible approach

https://cad.onshape.com/documents/a54493f362c69bc84d6917c2/w/f83be8afba856e7db0e988bf/e/ec476d1813a41ff2a409bddd

Hope this helps a bit

peter_cuthbert

HI GWS

Many thanks indeed for posting that drawing.  You have captured the problem exactly.  Just hope I can reverse- engineer your steps.  I was thinking about going at it from the view point of a flance on a flange, but getting the cut outs looked daunting.

Best wishes

Pete

GWS50

If you make a copy of the linked file you can open and edit the sketches to see how it works

peter_cuthbert

HI GWS

Many thanks for providing that drawing.  I have indeed been able to reverse engineer it and then draw my own version.

Best wishes

Pete