RDG have restocked their Myford raising blocks so I bought a pair, but I am
puzzled by their construction. At the top of the bolt holes is a smooth bore
steel sleeve with a hexagon head set in rubber inserted in the block ,
however the thread lower down the hole is cut directly into the cast iron.
If the rubber is meant to be a vibration damper why does the hold down bolt
engage directly into the iron block? Perhaps I have misunderstood the
function, so I hope someone here can correct me.
The rubber ring is to seal the block onto the swarf tray so that coolant does
Do you have a swarf/coolant tray?
The normal fitting is as follows:
The swarf/coolant tray is bolted tot the bench/stand with studs or threaded rod
about 1 inch
projecting above sleeve (which should be in approx mid adjustment position).
The lathe is then lowered onto the studs followed by nuts and washers to secure
The lathe should be initially leveled with an ordinary builders spirit level.
If you have, or have access to, a precision level the bed can then be to
twist in the bed.
If a precision level is not available then you will have to revert to turning
achieve parallel turning.
Since you do not mention the studs I presume that they are not supplied. The
are only lonh
enough for use with a Myford stand, if you mounting on a wooden bench you will
lengths of 5/16 BSF studding
to pass through the bench + 1inch + the height of the blocks with the adjusters
position + the 1 inch mentioned above.
You will also need 8 x 5/16 BSF full nuts, 8 ordinary 1/4 inch washers and 4
washers ("penny washers", "maintenance washers"
"mud guard washers").
Please check the thread inside the adjusting sleeve! The Myford ones are
BSF (I have just checked!)
Hope this helps
Many thanks Brian, you have made sense of it for me. I do have a drip tray
under the lathe, but I don't have the lathe bolted down because I need to
move it occaisionally by sliding the lot across my bench top. Levelling the
lathe is something I have intended to do since I bought it six years ago,
but so far I haven't even tested its alignment, though I did once fit
centres to the headstock and tailstock and found that they met perfectly.
For the moment I shall fit the raising blocks between lathe and tray. Apart
from raising the lathe to a more comfortable height, I want to increase the
clearance between the raised edge of the tray and the back of my hand. The
studs incidentally were supplied with the blocks.
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