Gridfinity baseplate not adhering to oversize outer width when using non-standard grid pitch

[MrTeamaker]

Hi,

I think this is a bug. Tried to create baseplate for my drawers where I need a bit of an extra on the sides, however the model created does not match the parameters at all.

Anyway, here's how to repro:

1. Set width to 4 units, depth to 1 unit
2. Set oversize parameters to fill, near, near
3. Set oversize outer width to 300
4. (Render will produce the correct part, 300mm wide)
5. Set grid pitch to 60x60
6. Render will now produce a part which is 428mm wide

When using the oversize method of fill, it seems the buffer at the edges is calculated as if using a 42mm grid (instead of an updated grid), but then added to the sides using the correct non-standard grid pitch, resulting in an oversized part.

[ostat]

I think you are right, there is a calculation that is happing using the default pitch. Something to fix.

The issue aside, I suggest you don't change the pitch. Its generally not a good idea. Just set the width to 300 don't use the outer width, and centre the grid.

[MrTeamaker]

Unfortunately my drawer is 230mm wide, which is 5.5 standard pitch and I can't afford loosing that much space on the side. Considering other places around my house, I have no choice but to change the grid pitch.

Setting the width has the same issue as above, the grid units are calculated using 42mm pitch and not the custom pitch, so that won't work for me either but knowing that the calculations are done based on a 42mm pitch I can figure out the ratios.

Just for completeness, there is a workaround:

1. Calculate how much oversize there is using new grid pitch (290-4x60=50) (assuming a desired width of 290 instead of 300)
2. Multiply this oversize by the ratio of 42 to your new pitch (50x 42/60=35)
3. Calculate how wide your base would be if the standard grid pitch of 42 would be used (4x42=168)
4. Set the oversize outer width to the sum of 2) and 3) (168+35=207) which will result in a 300mm wide part

[wjcarpenter]

Unfortunately my drawer is 230mm wide, which is 5.5 standard pitch and I can't afford loosing that much space on the side. Considering other places around my house, I have no choice but to change the grid pitch.

I have no useful help for this issue, but I do have some empathy! :-) A couple years ago, I used some published gridifinity "make your own drawer organizer" scheme. The first time around, I used spacers for the extra X and Y dead space. I did a second round (for unrelated reasons) and adjusted the pitch for both the base and the bins to exactly fill the drawer. I can never use those parts somewhere else, but things are just dandy in that completely filled drawer.

[ostat]

Unfortunately my drawer is 230mm wide, which is 5.5 standard pitch and I can't afford loosing that much space on the side. Considering other places around my house, I have no choice but to change the grid pitch.

Setting the width has the same issue as above, the grid units are calculated using 42mm pitch and not the custom pitch, so that won't work for me either but knowing that the calculations are done based on a 42mm pitch I can figure out the ratios.

What I do is is use 42mm grid, and have one side with a partial bin.
When you create bins, you can make one bin that is say 3 units wide (42*3 = 126mm) then one more bin that is 104mm wide.
This way you stay compatible with existing bins, but don't loose any space.

230mm base plate

Bin to fit the space.

This is our kitchen drawer. It's not a multiple 42mm. It uses a 42mm pitch.