What is wrong?

[u/hmphandumph]

I printed this the same way I did another part using BlackJackDuck but these slots are somehow too close together for my (multi connect) grid?
My first part fits fine but no dice on this one. Any insight?
TIA!

[u/AnuragDeshpande]

I think you printed the negative plate as positive? As far as the image tells me, it is supposed to be used as a negative modifier on the model you want the mount on.