Hi DW, yes you are right in thinking, the riving knife slots in the holder shown in the picture, I would suggest it goes between the plate and the arm with the 4 adjustment screws, ie plate, R knife, arm...leastways thats how I did mine, (perfect alignment too)
still dont think we have Lemons DW, OK your insert isnt exactly machined to perfection, but once its removed you can see how much room you have , and if it comes to the blade catching anywhere I would sooner it be soft ally than cast iron..
Im not saying the saw is perfect, but for what we payed your bound to get some minor niggles and imperfections.
Tommy bar , you would seriously trust that slot holding your tommy bar while you heave away tightening the blade up... :shock: both hand s one on the TB and the other on the spanner..
i could whinge about the ext tables not having the bevel ground exactly too the main table bevel, the amateurish paint finsh on the rear ext table, the magnifier on the fence (some muppet went mad with the red paint on mine) the list could be endlessly, but I got what I think, as do many others on the forum , a reasonable budget priced table saw....
looking more closely at the position of your blade with gullet removed , mine is exactly (care to give me the measurement :lol: ) where yours is , and mine runs perfectly well.
you have to remember these are factory mass produced units, where anything needed to be placed in a particular area is probably "templated " in and such minor deviations are bound to occur...
anyway lets know the outcome of your decision ( keeping, going back, what axminster`s emgineer did/said etc..)
hope you get it sorted anyway DW, its NOT a bad saw...
**NOTE.. watch out when you fit both CI ext tables to the right of the table the collective weight is capable of tipping the table over ( so have the support leg very handy..****