Opitec 107.388, Manual

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D107388#1
6.3Making the core, coil and commutato
6.3.1 Drill two holes in one of the double gears (6) these holes should be between two teeth on the small gear and 1mm
in diameter. Drill one side first and then the other on the opposite side.
6.3.2 Use the drawing ( page 11) to mark out and drill the bolt (4) and then insert the shaft 3dia x 95mm to 40mm.Use a
drop of glue to hold it in place. Screw on the nut so that it is level with the end of the bolt and glue it in place.
6.3.3 Glue the drilled double gear on the shaft 40mm in. Slide and glue on the second gear
With the small gear first 20mm in
Arrange the holes in the gear so that they are 90 degrees to the bolt ( iron core )
( see page 11)
6.3.4 Cover the thread of the bolt with sellotape or insulating tape.
Wind the varnished copper wire around the bolt , winding it doubled, making sure there
are no kinks. Wind it around one half of the bolt until there is about 40mm over .
Now wind the second half of the wire in the” same direction “ until there is also about
40mm left over.
Remove the varnish with from both ends of the coil with emery cloth then threasd the ends through the small holes
in the gears so that they lay cleanly (use pliers if necessary) the wire should lay parallel to the shaft ( With a version
with one gear the ends should protrude 5-10mm and not touch the shaft )
Note!
Keep to the winding direction ! check the gears with the coil
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D107388#1
40,0 40,0
20,0
95,0
Ø 1,0
90,00
°
5,0
30,0
30,0
15,0
5,0