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REMEDIES FOR HOLE MAKING PROBLEMS
Problem
Cause
Remedy
1) Magnetic
base won't hold
effectively
Material being cut may
be too thin for efficient
holding of magnet
Swarf or dirt under
magnet
Irregularity on magnet
face or work-piece
Insufficient current going
to magnet during
drilling cycle
Attach an additional piece of
metal under work-piece where
magnet will be located, or
mechanically clamp magnetic
base to work-piece
Clean magnet
Use extreme care, file only
imperfections flush to surface
Confirm power supply and
output from control unit.
2) Cutter skips
out of
centre-punch
mark at initiation
of cut
Magnetic base is not
holding effectively.
Too much feed pressure
at start of cut.
See causes and remedies above.
Light pressure until a groove is
cut. The groove then serves as
a stabilizer.
Cutter is worn, chipped
or incorrectly sharpened
Replace or re-sharpen.
Sharpening service is available.
Poor centre-punch mark;
weak pilot spring; pilot
not centred in
centre-punch mark.
Improve centre-punch and/or
replace worn parts.
Worn or bent pilot,
worn pilot hole
Replace parts.