Coen said:You buy them in bulk for one and a quarter project per year? Must be sizeable projects then.
16 projects*, but many in multiples of 2 or more. These days, unless it's hand cut joinery, everything I do, it's the DF500.
9 of this seen in their dry assemblies (1 being a prototype) were made as Christmas gifts in 2022, 144 (9x16) dominoes (4mm or 5mm?) used for one project:
[attachimg=1]
Edit: You should also allow enough as "dry-fit" dominoes for each size that are just regular dominoes but planed or sanded thinner for dry-fitting purposes.
* All shop projects like thishttps://www.festoolownersgroup.com/festool-tools-accessories/rumor-mill-says-new-domino-on-the-(far-off)-horizon-what-would-you-hope-for/msg702114/#msg702114 are excluded from the count