1.The material is rubber wood laminated lumber.

2.First, cut it to a width of 60 mm with a table saw.

3.Drill 6 mm on both ends of a 6 mm wide slot.

4.Drill 3 mm at the four corners of the square hole where the drill guide block will fit. This is a process to make it easier to cut with a jigsaw and to make it easier to insert a guide block.

5.20mm drilling of the center line confirmation window.

6.Cut out a 6 mm long hole with a scroll saw.

7.Similarly, use a scroll saw to cut out the square hole that insert the drill guide block.

8.The notch in the square groove that contains the acrylic plate for the center line was made using a 5.5 mm thick plywood template.

9.Use a 6mm bit to dig a 3mm deep groove.

10.Use Japanese ash for the drill guide block. Cut 10 mm from the edge and process it into a T shape.

11.Cut to a length of 53 mm.

12.This is a 45 degree drilling jig made from offcuts.

13.Bolt through hole 6 mm for fixing L-shaped bracket.

14.Pilot hole for M6T-nut, 7.4mm.

15.The T-nut can be pushed straight in by sandwiching it with a vise.

16.There is no counterbore.

17.Drill with a pocket hole jig.

18.Fix it to a right angle jig and fix it with screws

19.Glue a 9.5mm plug made with the round bar shaving jig introduced last month.

20.When sanded there, it becomes a beautiful oval pattern.

21.Place the drill guide block on the 45 degree drilling jig, align the drilling position, and fix the jig to the drill table. Now you can make a hole in the same position.

22.For alignment, I used a thin taper reamer with a sharp point, which is used for center punch.

23.Drilling for pipe 6*8. First drill 8mm holes. The depth is 40mm.

24.Next, Drilling a 6mm through hole.

25.Drilling for pipe 8*10. First drill 10mm holes. The depth is 40mm.

26.Next, Drilling a 8mm through hole.

27.Drilling for pipe 10*12. First drill 12mm holes. The depth is 40mm.

28.Next, Drilling a 10mm through hole.

29.Here, it was found that the outer diameter of the 12 mm pipe was about 12.5 mm. Therefore, Turning the outer diameter with lathe.

30.Glue the pipe to the drill guide block with two-component epoxy.

31.Grooving to insert the slide crosspiece into the main body.12mm width x 3mm depth.

32.Grooving to bond the crosspiece to the L-shaped bracket.12mm width x 5mm depth.

33.After adhering the pedestal for the plate that holds the drill guide block, Drilling 2.5 mm.

34.Make a counterbore.

35.Make a counterbore to sink the flange of the insert nut. Diameter 9 mm x depth 1 mm.

36.Drilling 6 mm.

37.Screw in the insert nut with a hex wrench.

38.This is a fence to prevent the disposable board from falling. 2.5 mm drilling for mounting screws.

39.Fix the fence under the L-shaped bracket.

40.Attach a fence to the side in the same way.

41.When the fence is attached, it becomes like this, and the disposable board does not fall or shift sideways.

42.After cutting 3t of acrylic plate for the center line as shown in the drawing, cut the four corners to R3 with a sander.

43.Drilling 2.4mm for mounting screws.

44.Make a counterbore.

45.Attach the acrylic plate to the main body and fill in the center line with a scribing needle.

46.Then, a dented line enters like this.

47.Trace over the line with a red pencil.

48.Then, the center line becomes red and it becomes easy to see.

49.This is the holding plate of the drill guide block.After marking the cutting line on an aluminum plate with a width of 20 mm and a thickness of 3 mm, a hole of 4 mm is drilled.

50.Completed block holding plate.

51.Fix the block retainer plate to the main body with screws. The plate that can be seen on the left side of the holding plate is a stopper to prevent the holding plate from rotating.

52.Completed body, drill guide block, disposable board.

53.The side of the main body.

54.The back side of the L-shaped bracket.

55.The back side of the main body. Can see the centerline scale and the back of the drill guide block.

56.Looking at the centerline scale from the front side, it looks like this.

57.The state where the drill guide block is inserted into the main body.

58.The aluminum retainer plate is rotated 90 degrees and locked.

59.I bought a middle size drill with a total length of 160 mm and a blade length of 100 mm from RAKUTEN for 6 mm and 8 mm drills. What you can see in the upper right is the stopper that I bought at MONOTARO before.

60.When I measured the total length of the 10mm drill that I usually use, it was 140mm, so I think I can use it somehow.

When making a dowel hole, fix the jig to the work with an F clamp.

Please see the video for how to use it.