Slicer for Fusion 360 Slot Offset wrong direction

[russcoffin]

Making a pumpkin using Slicer fF360 as a learning exercise. The pumpkin was an STL I found on the web. I imported into the standalone Slicer as well as the F360 route (convert to BRep etc). I create the design in slicer and ensure no errors. I want to CNC Mill using .5" plywood. I save the design to a DXF zip file so that I can insert into F360 as sketches, extrude into parts, and CAM into gcode for my machine.

The problem is using the "Slot Offset". Setting to 0.1" either on the bottom of the screen or in the Manufacturing Settings gives me a slot of 0.49" in F360 (very weird - negative X 10%). Putting the offset to 0 gives a proper .5" slot. Putting the offset to -0.1 gives a .5" slot. 

I got around this by setting the material thickness to 0.55" with 0 offset so the slots came out with 0.05" extra. This works fine as I am extruding 2d to 3d.

Am I missing something? Bug?

[Anonymous]

same thing here. I find that 'slot offset' doesn't work on radial slices. it seems backwards and wont let you input negative numbers with any effect. I tried it with a native generated sphere from  fusion 360 in slicer and got same error, proving  that it's pretty much a bug.

It seems to do the opposite of what it is supposed to achieve and only shrinks the slot.

I guess you and I are the only 2 people in the world using slicer  😉

[Anonymous]

I have the same problem. When trying to change the offset settings it automatically jumps from 0 mm to 1 mm. Everything in between is not possible. The other settings have more or less the same problem. It's a weird bug. I hope it will be solved in the future.  

[Anonymous]

For laser cutting material this is get-around-able, but for exporting for 3d printing it is not. No negative slot offsets work, even though you can select a negative value.

The only workaround is to make the material thickness the actual thickness you want plus your tolerance, then scale back in z (once you've rotated them flat in your slicer). A bit of an ache in the back end when you have a few pieces.

Fingers crossed they get round to fixing negative slot offsets, or make the positive go the correct way.