Autorouter grid settings

[m_s_kramer-1]

I am using fusion electronics for a fluidic analog of a PCB design. In the DRC settings I have specified the distance between 2 wires, and autorouter follow this rule. The problem is that I need to place the via's on a grid of 3 mm. When I try to set the routing grid to 3 mm, I get the error "check routinggrid". When trying a smaller grid (2 mm), the autorouter runs, but still the via's are not placed on a 2 mm grid. The wires are placed on the minimum distance between wires, so this is fine.

I have also changed the clearance distance between 2 via's to 3 mm in the DRC settings, and using autogrid selection. However, autorouter still places via's closer than 3 mm from eachother.

Is it possible to overcome this issue?

[jorge_garcia · Accepted solution]

Hi @m_s_kramer-1 ,

I hope you're doing well. Unfortunately, this is not possible. The autorouter can not be forced to stick to a certain grid for via placement. If for some reason vias must stick to a certain grid, then you will be better off routing the board manually.

Let me know if there's anything else I can do for you.

Best Regards,

[m_s_kramer-1]

Hi @jorge_garcia,

Thank you for your answer, then I will try it routing the board manually