Does anyone know where I can find a 1/4" to 15mm motor coupling? I ordered some on eBay but the vendor sent me 9mm x 15mm couplings and then told me they don't have any 1/4" x 15mm ones in stock. I can't find any other vendors offering this size...
If I can't buy them, is a diy coupling an option? It seems like it would be a simple case of finding the right size drill bits and adding a couple of set screws. Is there more to it than that?
My other options would be using pulleys or using an intermediate shaft as I can easily find 1/4" x 12mm and 12mm x 15mm couplings but neither of those are ideal...