Marking-off line is being formed along the paper pattern which was made before with scriber.
Firstly, a steel plate is painted blue with "Hi-Mckee" which is ZEBRA's marker.
As a result, marking-off line can be easily watched.
If possible, a special paint for metal shoud be used.
But it's expensive, so I use Mckee regularly.
Unfortunateluy, Mukee's blue disappear gradually, so you must be careful.
Secondly, the steel plate is marked with scriber.
The paper pattern is locked by clamp while at work.
And then, some points at which you drill to cut the plate are marked.
I marked some points in at about 5mm intervals.
○Drilling some holes
Marked the steel plate is being drilled and portable electric drill can be used to do.
But portable electric drills are low precision and may damage your wrist, so you shoud use a drill press if possible.
Firstly, I drilled some hole with a diameter of 3mm.
In Next step, The plate will be cut from hole to hole.
Thus, the larger a hole is, the easier cutting is.
I resized holes as large as possible.
Specifically, I chaged drill bit from 3mm to 5mm at the maximum.
○Cutting
Final step of cutting outline is "cutting" with a hacksaw.
The steel plate was drilled is cut along holes.
At this time, KURE 5-56 is used as lubricating oil.
Rough form appeared.
Tools used at this section is under.




