A good helper when working with sheet material will be here is a simple fixture. It allows you to cut a sheet of chipboard, plywood at any angle.
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CALLING IN A WHISPER
Old alarm clocks and many doorbells and telephones emit a signal due to the blows of "hammer" metal hemisphere of the bell. If you are annoying it's pretty sharp rattling, stick a bell...
FORCING THE “D”
Device for Dismounting of bearings is shown in figure 13. They are as follows: from the bearing, remove the separator, pushing the balls enter between the collars of the bearing lugs is...
