Quote Originally Posted by luke11cnc View Post
here is a link to the covers I bought

http://www.ebay.co.uk/itm/2207881762...ht_1071wt_1163
It is as I feared, you bought the ones that 'will not fit the SY60 motor'. The motors you have are actually slightly bigger than Nema 23, so Nema24 ish...23 mean 2.3 inches, 34 means 3.4 inches etc...

Maybe they can be modified. At least it looks like you only bought 2 not 4.