Create M6 threaded holes in prep for assembly
- ~6 mm diameter marking tool (if used gently an 6 mm drill bit and a hammer can be used or a center punch with a compatible spacer)
- 5 mm Drill bit
- M6 Tap bit
- All M6 threaded holes for the BK12 mount are properly placed to hold it flush to the HGR20 rails.
- Double check the HGR20 rail is tightly pressed against the BF12 mount installed earlier and that minimum play exists between them.
- Position BK12 Mount against the HGR20 rail as shown in Figure 6.1.
- Ensure the mount is positioned correctly. The three counterbored holes should form an arrow pointing away from the HGR20 rail as shown in Figure 6.2.
- Mark the (3) counterbored holes with your marking tool. Ensure the marks are adequately centered. If you are doing this with a drill bit, be careful to hit the bit very lightly.
- Repeat the previous three steps on the other Y-Axis frame beam.
- Drill all (6) marked points with a 5 mm drill bit.
- Thread all holes made in the previous step with an M6 tap bit.
- Set the BK12 mount aside, it will be installed later.