Homemade Rotary/Flat Engraver

Materials & Supplies:

3/4" Plywood
Wood screws: 1-1/4" (20)
1/4-20 Hex-head nuts (15)
1/4-20 Washers (15)
1/4-20 3-1/2" Bolts (3)
1/4-20 2" Bolts (3)
2" U-Bolts (2)
1/4-20  Furniture Nuts (11)
3" Tee Hinge (2)
3" Barrel Hinge (2)
1" PVC pipe (Connecting flare end only)
1" PVC end cap
1/8 Plexi 8x10 sheet (1)
1/4 Plexi 8x10 sheet (1)
1-1/2"x3/4" Spring (a unistrut bolt from electrical supply will work)
1 6" zip tie
1 23/64"x1 3/8" compression spring
1 4" All-thread bolt (grind one end to create a point)

Tools:

Table saw
Screw gun
Craftsman Wrenches
Dremel
Epilog Laser Engraver/Cutter
1/2 Drill bit
3/8 Drill bit
1/4 Drill bit
Super glue
Measuring tape
Caliper
Pencil
Sandpaper (80/220 grit)
Grinder
Hammer
Vise
Band-aids
Aspirin

Step 1 Pre-cuts and Base Assembly

(Pre-cut materials for easier assembly):

Plywood:
- One 16"x22"x3/4" rectangle (Base)
- Two 2.75"x8"x3/4" blocks with 45 degree angle cut on one of the 8" sides (Base Track A and B)
- Two 2.75"x4.5"x3/4" blocks with 45 degree angle cut on one of the 4.5" sides (Base Track D.1 and D.2) 
- One 4"x4"x3/4" block with 45 degree cuts on two of the sides (Base Track C)
- One 2.75"x3"x3/4" block (Tracer Arm)
- One 2"x7"x3/4" block (Main Slide)
- One 2.75"x14"x3/4" block (Main Arm)
- One 2.75"x6.5"x3/4" block (Spindle Arm)
- Two 2.75"x1"x3/4" blocks (Spindle Arm Spacer A and B)
- One 2"x7"x3/4" block (Spacer Arm)

Plexi:
- Two 2"x1"x1/8" blocks with half pipe cut outs (use 1" PVC pipe to measure)
- One .974"x1.31"x1/8" "C" shaped ring
- One 1.018"x.50"x1/8" ring
- One 3.25"x4.25"x1/4" block (with four drilled 3/8" holes in each corner)

Aluminum:
-One 1/16" thick Angled 3/4"x36" (cut down into two 10" pieces)

Base:
Take the 16"x22"x3/4" pre-cut board (noted above) and cut a 3/8"x6"x3/4" groove to allow a 1/4" bolt to slide up and down (start the groove 1" from the top of one of the 16" sides and center of board at 8")

Draw out and drill nine 3/8" holes to creat a 6"x6" grid in the middle of the board

Install the1/4"-20 furniture nuts to the back side of all nine holes.

Super glue the 1/4" washers on the front side of the board over all nine holes.

Comments

[kommodore]

Very good work! congratulations i like it a lot!

[ikssk]

This is awesome,

[hack818]

Thanks ikssk

[rimar2000]

Very good work!

[hack818]

Thanks rimar

[Phil B]

Thank you for a useful Instructable.

[hack818]

Thanks Phil