Super 7 cross-slide flex?

Hi, when mounting a myford vertical milling slide on my super 7 cross slide I detected a noticeable tightening in the movement of the cross slide which would suggest distortion. I wouldn't say i over tightened so was surprised by this, anyone else come across anything like this ? Thanks

Check that there isn't a fragment of swarf between the mating faces. If all is absolutely clean check both faces flat.

You are not the only one who have noticed that, it is certainly not caused by swarf and the problem does not occur on the ML7 I have when using the same slide. I made a new adaptor plate that fits on the crosslide the same way as the topslide on a S7. Its much nicer and easier to use as the original one and cured the problem (almost) complete. Niko.

Edited By speelwerk on 03/05/2015 10:32:09

I get the same thing on my M series Drummond, but I tend to make mine quite tight.

I also replaced the weedy original tie down bolt with a solid steel t-bolt which has a nice thick tee

Newer models of the vertical slide have 2 t-nuts(or bolts) which spreads the load and has better twist resistancee

Edited By Ady1 on 03/05/2015 11:56:21

Thanks for the input, I suspect a bit of swarf/debris, I'm sure it wouldn't need much. Both lathe and slide are not new so perhaps if a good clean does not sort it out then a thorough check for flatness.