my build

[irving2008]

Oh I dunno...it depends what load you're applying. For instance...I'm using pairs of common or garden 15 ID 35 OD bearings on my mini-router....zero backlash and well within their capabilities....For machining metals....AB bearings only for me. Horses for courses Irving...after all the MDF router will fall apart before the bearings reach their limit :naughty:

Its not so much the bearings Kip, its the pillow block approach.. the way the bearing locates in the block doesnt give a positive position to the shaft. I'm sure it could be made to work for light cuts, but thats a fairly big router Jon's constructing so I'd assume he's got big plans for it ...

For machining try a drill and an angle grinder equipped with a flap disc in combination with a jig.

I accept no responsibility if you get whipped :D

these are long lengths of TR12, going to need some bearing support on those just to stop the whip, and thats before you put any pressure on with the grinder...

[irving2008]

I have no bearing location on mine.....the bearings sit against Al plate as they have no radial loads....a spacer in the middle and a belleville washer and a bolt glued in....Nice glue though ;)

I can't visualise this... picture needed...

[jonm]

hi guys
thanks for input ... fixed gantry to sides today, bottom runner in , all feels pretty rigid

[jonm]

going to attempt to grind down screws to 8mm then use skate bearing .. with thrust bearing either side , on evilbay thrust bearings for £1.90 each

cant find angular contact bearings at 8mm, and magneto bearings are £6 each ....... i am after all scotsman

[jonm]

never mind.. soon be time to iron last years xmas wrapping paper....
and tippex the cards..

[jonm]

cheers kip
bag of bearings arrived from " gap bearings " today...
will feed three 12mm bearings on to trapeziod screw fix bearings down with these drill on one end , then attack with grinder... sounds so simple....... we will see

[jonm]

worked a treat took the threads of with grinder ....last few mil with a file .......
threaded end for m8 nut