Here is an example of a slider track build using materials purchased from Home Depot. There are many different options in materials and I just wanted to show some options. For example, instead of the saddle tee used here, you can use a metal ring hanger (Home Depot Store SKU # 236762). The aluminum stair picket is not very strong so if your camera is heavier than 5 lbs, use a stronger support like a strut channel for example (Home Depot Store SKU # 455467)
1 pcs 1″ emt conduit (10 feet cut in half Home Depot Store SKU # 580015) $6.40 each
1 pcs peak aluminum stair picket ( Home Depot Store SKU # 603341) $5.77 each
4pcs 1″ saddle tee (Home Depot Store SKU # 802539) $1.24 each
4pcs 1/2″ threaded pvc plug (Home Depot Store SKU # 294225) $0.96 each
4pcs 1/4-2otpi screw 1-1/4″ long (Home Depot Store SKU # 337197) $1.18/pack
4pcs 1/4″-20tpi wing nut (Home Depot Store SKU # 215175) $1.18/pack
4pcs 3/16″ washer (Home Depot Store SKU # 935807) $0.98/pack
First measure the distance between the center of the wheels on your dolly.
Add 2 inches to that and cut the aluminum stair picket and lets start calling this “the support”.
Since my dolly is so wide I’ve cut this piece in half.
I left 1″ from the edge and I drilled a small hole in the middle of the support.
From that hole I measured the distance between my wheels and I drilled another hole.
I also drilled an extra hole in the center between the 2 extremities in case I decide to mount this on tripods in the future.
I am enlarging the 2 outside holes using a 1/4″ drill bit. I will leave the one in the center like that for now until I decide what I’m going to mount this to.
Using a screw driver (or nail) I mark the center of the plug and I drill a guide hole with the small bit and then with the 1/4 drill bit.
I mounted the cap using the wing nuts. Don’t tighten too much as the aluminum will bend.
Screw the saddle tee onto the mounted cap. Leave 2-3 teeth of thread exposed for easy un-threading in case you need to do so.
Holding the saddle at an angle with the support will allow you to easily tighten the pipe.
You can leave it like this for easier storage and transportation.
And that’s pretty much it. You can use a marker if you don’t like those white caps.