Instructables
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


 
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Step 1: Pre-cuts and Base Assembly

Picture of Pre-cuts and Base Assembly
DSC05250.JPG
BASE SLIDE TRACK.jpg
demel plexi parts.jpg
TRACER ARM.jpg
MAIN MAIN SLIDE SPINDLE ARM.jpg
(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.
niiiiice !…

but I guess many of us need a video … 

"We all want a video !…" "right on ! all we are asking is give us a vid' !"
We gonna make you famous !!!… LOL and thanx again !…
This is fantastic! It's like a 'sketch-a-graph' for builders! You've put a lot of thought and innovation into this.
cart5621 year ago
So this is the exact thing I started trying to make and you might say I was failing terribly so I'm going to give this a look over soon.
mvieke1 year ago
Very cool project. Can you add some video of this in action please?
Mateo_1 year ago
Thats the best idea I've seen in a while
Thumbs up.Great instructable, this is the most amazing woodworking project I've ever seen. A really low cost, non critical and easy to find parts.
handymoor1 year ago
wow....cool
fretted1 year ago
Wow i just started one of these last week you ible helped a-lot
useraaaaa1 year ago
cool
kommodore3 years ago
Very good work! congratulations i like it a lot!
ikssk3 years ago
This is awesome,
hack818 (author)  ikssk3 years ago
Thanks ikssk
rimar20003 years ago
Very good work!
hack818 (author)  rimar20003 years ago
Thanks rimar
Phil B3 years ago
Thank you for a useful Instructable.
hack818 (author)  Phil B3 years ago
Thanks Phil