Planing oak sleepers

[Deleted member 174758]

DHS680. The blade is fractionally out of square towards the centre (spindle hole) of the blade but perfectly square towards the cutting edge. This is against the base plate.

Even when I’m careful, on the 200mm side of timber, the blade will start on one side of the pencil line and end up on the other side. Something is amiss and I can’t work out what it is.

... the back of the blade is 1-2mm further out from the edge of the sole plate compared to the front of the blade. How do I adjust this?

Unfortunately I don't have a DHS680 at home right now, so I can't confirm this, however my recollection from the last one I repaired for a colleague in January was that the pivot pin at the rear of the saw goes into an oval hole and is locked with a grub screw. I'll have a saw to hand on Monday morning (maybe even tomorrow) and I'll confirm this.

All the forgoing stuff was general principles, rather than specifics.

 

[stealthwolf]

Well I succumbed and bought a 100mm belt sander. I managed to get rid of the “stepped” edges from inaccurate blade cutting.

Might post this separately but does anyone know how much a sleeper might expand lengthways in wet weather? They are laid in such a way that it’s surrounded by concrete patio and I’d hate for the concrete to crack.