The pen holder is two hose clamps and a hose connector. Put the larger hose clamp around the horizontal pipe, and the smaller should be inside the larger as in the picture below. The hose connector then gets clamped inside the smaller hose clamp and you push the marker inside. I used a rubber band around the marker so I could get it inside but it would still be snug. Because the rubber band snugs the marker, but doesn't make it immobile I can adjust it up or down to just meet the surface I'm writing on. I tried a piece of paper, but it's not smooth enough. I had an extra 3-ring binder hanging around and the front of it with the extra plastic where you can slip in a piece of paper for the cover is perfect. I could print up designs and put them in there to practice on.
|Here is a close-up of the pen holder in the center of the bar.|
The hose clamps cost about $1.50 each and the gray connector was about $.70.
|Hose clamps: choose sizes that will fit around |
your horizontal pipe and the hose connector for the pen.
|Hose connector. Make sure the interior|
is large enough for you marker.
|Here is what the 90 degree piece looks like. It's used|
to connect the long horizontal bar to the legs.
|End cap for the base. This makes'|
the foot of the device a bit longer so more stable (I think.)
|T-connector for the base|