Why is printing screwed up? Issues with circles and obrounds.

[Gregg Eshelman]

I would like to print a design at full scale but circles won't print at all and arcs on the ends of obrounds get printed inverted.

I also tried to put tabs on the obrounds and on a circle, but nothing would happen when I clicked to place them. I followed a video on YouTube on how to place them but I got nothing when doing an internal profile. Click here, click there, zoom in to click *precisely* on the green line, nothing. So I set the depth to leave a paper thin layer of aluminum then did a finish cut through it. The cutouts dropped from the elevated plate without trouble. (Nice to know my mill is that precise on depth, could cut a small section of Atlas rocket tank isogrid skin with it.)

It also would not generate any code for an internal profile on a circle. So I extruded the sketch to a solid, which also converted it to a polygonal object instead of maintaining the smooth circle. Then I converted an end face to a sketch, then added points at intersections, then selected every other point around half of it and made a spline. Finally I repeated the points and spline for the other half and combined the two splines into a sketch. And guess what? That circle-ish object made of splines wouldn't show up on printouts either.

THEN it would create g-code for that circle-ish object. A "Split Circle into two 180 degree arcs" function would be very useful. So would "Create Arc through 3 selected points". Or another circle function that makes it as a pair of arcs to start with.

I'm making another stepper mounting plate and will try a side-less obround without any straight sides. The sketch shows just two arcs in it. There's the circle in two arcs function, duplicate the obround function with stretching to create sides disabled. Hopefully Heeks won't have any objections to creating g-code with a sideless obround.

Oh, and for GUI's sake - scrollbars on the main view window! I could save so much time if I didn't have to keep switching to a different mode just to pan the view. Content/context sensitive Mouse wheel scrolling (as in pan/scroll the view with wheel when pointer is over the bars), hitting the first letter of a list item to go to it, up and down arrow keys to go up and down list items - all of them basic UI functions every program should have, that for some reason Heeks does not. All of them time and motion savers.