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Under construction > Z-axis mods |
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Web links Arc Eurotrade. Sieg machine tools and
general machine tool accessories. Fixed column version of the
SX2P. Axminster Tools. Sieg machine tools,
'Axminster' brand. General machine tools and accessories. Little Machine Shop. Air spring conversion
kit. LMS refers to the SX2P as the 'HiTorque Mini Mill'. Model
3990 has a fixed column and an air spring conversion. Model 3900
has a tilting column and a torsion-spring counterbalance. Note
that the airspring on the 3990 is attached to the side of the
spindle base (z axis carriage, #121) - see the user guide.Model engine maker. SX2P Z axis mod,
nicely done, but no rack replacement. Mini-Lathe.com. Air spring conversion
on the SX2 done using the X2 conversion kit. This required making
of a U-bracket to attach the vertical rod to the belt housing.
The machine is an early version with a metal belt housing. Later
machines have a flimsy plastic belt housing, not secured at the
back. Attaching the z-axis counterbalance to this is not a good
iea. (LMS Hi-Torque convertion kit now exists, see above. It
bolts through the belt housing to the spindle base). See also
SX2 review. Macpod. Arduino-based tachometer kit
for the SX2 mini mill. Also shows how to get motor reversal. |
 Chuck guardThe sieg SX2P is supplied with a chuck guard, even though it is absent from all photographs of my machine. It has no hinge and is secured by two Allen-head M6 screws. The only way to change or adjust tools is to remove it, and it is delicate and fiddly to fit. It seems to have been designed for fitting only during Health & Safety inspections. Personally, while I am strongly in favour of safe working practices, the drill chuck guard is a device that seems to serve no purpose. Hand-held drills do not have one. Swarf and chips tend to be ejected at right angles to the cutter axis at the point where the cutter meets the workpiece. The chuck doesn't eject anything. For general safety, always wear eye protection. If you are wearing loose clothing, go home and dress appropriately. If you have long hair, wear a hair net. If you are wearing a tie, go back to your office and stop bothering the people in the machine shop. |
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