Keeping hywin rails clean?

[magicniner]

If you add dust extraction why not have some additional extraction points fore & aft of the runners on the problem rails to keep them clean?

[charlieuk]

To give enuff suction I think you would need quite large tube and more noisy vacuums and I'm struggling with getting that to work with my 6meter x axis as it is I would happily be proved wrong though

[magicniner]

You could reverse the idea and have very close fitting shrouds around the rails on each end of each runner and keep them at positive pressure with compressed air, that should move anything up to and including "leaves on the line" or "the wrong kind of snow" ;-)

[Boyan Silyavski]

You could reverse the idea and have very close fitting shrouds around the rails on each end of each runner and keep them at positive pressure with compressed air, that should move anything up to and including "leaves on the line" or "the wrong kind of snow" ;-)

I have seen that on expensive plasma machines. small dc motor with brush, brushing just before the bearing block.

[magicniner]

Could you rebuild the machine with the rails & slides under the bed so that material will tend not to contaminate them and debris will "fall off" rather than "fall onto" the rails?

[charlieuk]

due to the nature of the foam chips created (they are bits rather than fine dust mainly) the shapes I am cutting and the static nature of foam is much as I would love to be able to remove it all at the source I think it is wishful thinking and that there will all ways be a small amount wanting to escape. It is only really the bottom rail that is getting badly effected and that is a real concern but it would be good to have some protection on the others. I like the idea of a positive pressure shroud although could be tricky to make and would it be that different to just blowing it off?I have tried putting brush stips on however due to the complex shape of the rails it is very hard to get complete coverage around the rail.

Has anyone used the hiwin dust proof kits? maybe it would do the job on its own?

http://www.wmh-trans.co.uk/Products/SIZE_20

[JAZZCNC]

Doesn't need to be complicated just use some foam block which you fasten via bracket or what ever means in front of bearings.
Cut lump out of foam something like the shape of rail just smaller so it conforms to rail shape when forced over rail. The brackets hold it in place.

This just wipes the rail clean of most crap and the bearings own seals deal with the rest.