I just bought a used darex off ebay.
Seller said machine was M5 and it looks like M5, but there is
no model number on the machine. I figure this means it started
out as something else and someone added the accessories to make
it into an M5. According to the manual I downloaded from darex,
the M5 has CBN wheels on both sides. This one has a AO wheel
on the right. It appears that a special hub is required to mount
the CBN wheels ?
When first switched on, the motor growls as its coming up to
speed. It sounds ok after that. Is this an indication that
something is wrong with the motor?
Perhaps the bearings are going out ?
There are deep grooves in the swing fixture where the chuck collet pins
ride. Is this normal? It seems to me that the grooves will alter the
grinding profile. This fixture also has a copper insert in this area.
Was this insert added as a repair?
I did a test grind on a 3/8 bit. The chisel point is way out of wack.
In order to make the point right, I had to mount the drill in the
collet chuck with the relieve set to 138 even I was grinding a 118 bit.
In general the Darex looks like a cheaply made machine. All the castings
are white metal and they have adjustment screws that push directly on
the metal. There is a large divit under the feed screw on the casting.
The swing castins is real sloppy too.
Is this a normal machine or a lemon?
17 years ago