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Thanks guys for all your help. All my tools are replaceable tip type, I am not at the stage where I know how to grind my own. Yes my naming of the boring tool was wrong the cutting tip points left, I thought the cutting direction was the way you named it. This gets more embarassing my lack of...

Hi Thanks for the pointers KVOM. Yes machine tom you are probably right about turning the lump on a 12mm shaft. About right hand and left hand boring tools. I only have a right hand tool which I was going to use for the outer part of the groove, then I was going to reverse the lathe and cut the...

Hi Thanks Arnold, in France we only use metric. Barry

Hi Thanks for the replies, now I have some ideas. I am turning it from 65mm bar stock and intend to face one side then reverse it in the chuck. Turn down the 21mm end and add the recess, then drill and bore the centre to 12mm. I will then reverse the piece in the chuck and turn to the correct...

Hi Not sure if this is the right place to ask this question, please correct me if I am wrong. I am fairly new to model building and have a problem machining the flywheel of my first model (see attached drawing). What is the best way to turn the 10mm wide groove each side if the flywheel...

Hi Was there ever a set of drawings for this engine published in metric? There was talk of an easy conversion in software but I cannot find it. I have spent several hours trying to convert it myself but have given up. I would love to build it' Barry