Super 7 cross-slide flex?

[CarlParticipant @carl48656]

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

[CarlParticipant @carl48656]

[John HaineParticipant @johnhaine32865]

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

[speelwerkParticipant @speelwerk]

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

[Ady1Participant @ady1]

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

[CarlParticipant @carl48656]

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.

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