The smallest cove that can be sanded is 5 /32 inch.
We cannot go into and out of a square inside corner. Therefore, we must skip any steps (as shown on profile ‘M’). Normally, sanding will start within 1 /16” of the corner and will sand the remainder of the profile.
‘Stepped’ profiles like ‘I’ require extra care in installing abrasive.
Some profiles (‘N’ and ‘O’) utilize two strips of abrasive. On ‘N’, one strip does the cove, one does the round over, and the step skipped. For ‘O’, one strip does the wavy profile, and a second strip butts up to it to sand the lower flat, keeping the corner sharp.
This abrasive will not come ‘straight out’ on the wheel, so we give a 15o relief angle on the top and bottom of profiles similar to ‘K’.
The deepest that a profile can be in the sanding wheel is 3 /4”. A deeper profile can be sanded by tilting the wheel. Reasons to tilt are to minimize the depth of cut into the sanding wheel and to keep the abrasive as flat as possible on the wheel. This makes changing of the abrasive easier and gives prolonged sandpaper life.
Information required before manufacturing a sanding wheel:
Bore size — 3 /4”, 1”, 11 /4”, and 40mm are standard.
Tilt for edge wheels. Tell us if your sander spindle can tilt.
Rub collar/bearing diameter for panel wheels.
O.D. or minor diameter. If not specified, Larick’s edge wheels are about 8” O.D.
Grit of abrasive desired. P100, P120, P150, and P180 are available.
We need an unsanded part to use as a template and like to have some end grain.
Shape all 4 sides of a small part and send to Larick. We will use part for a template and can test the wheel on the remainder.