Hi. I have just purchased a DF 500 to initially make a table and 1 or 2 settees for my son. We are using structural KDHW 145 by 45 boards. I have used a 10mm cutter and 10 by 50 mm dominos to join both the table top, settee base and side pieces. I have planned to use a combination of butt and mitre joints in the settee and I am wondering about the spacing and number of dominos I will need for the joints. Naturally I don't want it to collapse!