Again this is what I used, modify as you like.
All supplies purchased at Home Depot.
1 ea 10' piece of 1" PVC (thin Walled)
18 ea 1" PVC Caps
1 .75"x5.5" Piece of Poplar Pre Cut (in the pre cut hardwoods section)
18 Ea 1/4" x 1.5" Flush Mount Machine Screws
18 Ea 1/4" Washers
18 Ea 1/4" Lock Washers
18 Ea 1/4" Nuts
I had on hand:
1/4" Drill Bit
Stain For the wood
PVC/tube cutting tool
I used my drill press and a circular saw as well as a PVC/Tube cutting tool. You could do this with hand tools if you had to. I knocked the whole project out in an hour or so.
Step 1: Drilling the Caps
Step 2: Cutting the Board Down to Size
Once I had the caps drilled, I laid them out on the board to see where I needed to cut it down to size. A quick pass with the circular saw got it down to size in seconds. You could use a hand saw if you had to.
I used a bit less than half the board, so I have enough wood to make another one of these if I want to. You could use some scrap you have laying around. It just needs to be wide enough to fit the number of tubes and the size you want.
Step 3: Marking and Drilling the Holes in the Board
Once I had the holes marked I removed the caps and again used my spring loaded center punch to pre ding the holes to prevent my drill bit from walking.
Once I had the 1/4" holes drilled, I flipped the board over and used a counter sink bit to widen the bottoms of the holes a little bit to allow the screws to be totally flush in the board when I do the final installation. I want this to sit nice and flat.
Step 4: Staining (Optional)
Also, you could use some Krylon Fusion or similar plastic paint to paint the PVC and the caps if you wanted to. I decided to just leave my tubes white.
Step 5: PVC Cutting and Prep
To figure the lengths I wanted, I pulled out one of each size of zip tie I had on hand. Subtracted 1.5"s from the length and cut my pipe to these lengths.
I.E. for a 12" Zip tie measured tip to head, I cut my PVC to 10.5"s.
With 18 pockets, I did
3 @ 10.5"s
3 @ 8.5"s
6 @ 6.5"s
6 @ 2.5"s
Step 6: Assembly Part 1
I started by putting my bolts thru all the holes. The sharp eyes out there will no doubt notice 2 bolts of a different length and head type. I guess I goofed on my math when buying my hardware packets and was 2 short. I had some Stainless Allen head 5/16" bolts left over from another project. They were bigger but they worked to let me finish the project. Lesson, Always buy an extra packet of hardware!
Then I put the caps on the bolts one by one. I made sure to turn each cap so that the barcodes on them were inside and will not show on the finished product. Again painting the caps would have made this unnecessary.
With the caps in place I added a washer, lock washer, and nut to each.
Then I just tightened them all down, sucking the bases into the bottom of the board for a nice flat bottom surface. Note here, I held a socket on the nuts and tightened the screws from the bottom of the board so they pulled themselves into the wood.
Step 7: Final Assembly
When i was satisfied I pulled the pipes back out, applied PVC cement to the inner sides of each cap one by one and seated the pipe sections down firmly.
Again I made sure to turn all the print on the pipes to the insides where they will not be too visible. Painting would have negated the need to do this.
Step 8: Finished Product
With three rows I will use the left row for white, middle for black, and right for other colored zip ties. Overall I am very happy with how it came out, except its painfully obvious I am running low of stock and need to go buy more to fill this bad boy up!