Recently I was given a Manfrotto 728B tripod that was in pretty rough shape. It seems cam-acting leg locks on this particular model are prone to cracking. If you look close you can see the plastic is very thin at certain areas and with the cam lock putting a high bit of stress on the joint its no wonder why all three locks were cracked. Well not to let a potentially good piece of camera equipment go to waste I searched the internet for the replacement hardware.....The best I could find was $15 per set. Now multiply that by 9 sets and the notion that they wouldn't last very long leads me to this instructable....I got to thinking I could make better replacements myself.
With a little reverse engineering, some beefing up of the side walls, and a short run on my friend's 3D printer....Voila! I got a new and improved tripod with a little personal touch added to it.
You can find my 3D stl files on Thingiverse.com under the heading "Tripod Cam-Lock Repair" or under my username of "frubino".
Special Note: If you like this Instructable, please cast a vote for me on the UP 3D Printer contest. I personally would love to have a printer of my own and spare the pressure I put on my friend who has one and has been patient with my needs.
THanks for your support Joe.
Step 1: Tools & Material
Tools & Materials Needed:
2. Drift/punch/old nail (1/8" or 3mm diameter)
3. 3D Printed Replacement collars
4. A small blade