Hi all

For those with Warco WM250 V-F lathe you may find this helpful; got round to my toduit list & set to making a new compound slide gib key; the original provided was an abysmal piece of mild steel, obviously hand ground at the manufacturers, why it took me so long to do a new one is beyond me; probably down to the 'get your finger out ' not being to the fore front... dont know , any how made a new one from brass, the original was a piece of MS roughly, & I mean roughly 3.4 mm strip, that should have been a decent fit into a 5mm gap. I made the new one 4.7mm which slid in nicely giving enough gap to nip up neatly. As you can see the original bore no resemblance to a proper gib key shape, also the undercuts in the dovetail corners were far too big, reducing the width of the bottom mating face, looks like the Chinese machinist picked up the nearest slitting saw to hand & whacked that through, undercuts half the size would have been more than enough & would have allowed more bearing surface on the bottom slide, anyway I now have a much neater fitting compound slide with no tight spots when adjusted & now moves nice & smoothly when I wind the slide back & forth...
The OEM gib key...
gib key mod (1).jpg
OEM 'gib'... couldn't even get the angles correct...
gib key mod (2).jpg
Piece of scrap steel ?...
gib key mod (4).jpg
Machining new brass key...
gib key mod (8).jpg
New key, much better fit, although dovetail undercuts way to big!
gib key mod (12).jpg
Also modified the locking screw...
gib key mod (16).jpg
That's another 'mod' off my toduit list...
George.