Ultimaker ORIGINAL+ Assembly Manual page 78

To assemble the drive bolt, perform the following steps:
1. Take the wooden gear and place the M8 hex nut into the corresponding hole. Make sure it is as straight as possible;
if the nut is slanted, this might lead to feeder problems later on. Fig. 211.
2. Line up the four holes of the wooden gear cap and the wooden gear. Attach the two parts with three M3x14 bolts
and lock nuts. Make sure the lock nuts and the engraving are on the outside of the wooden gear cap. Fig. 212 and
213.
3. Insert the knurled wheel through the M8 hex nut, until an equal portion of the screw thread can be seen on both
sides of the wooden parts. Fig. 214 and 215.
4. Attach the cap nut to the screw thread of the knurled wheel. Make sure the cap nut is secured as tight as possible
and the knurled wheel stays in the same position. Fig. 216.
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