Repair The Leg Locks on Your 728B Manfrotto Tripod w/ 3D Printed Parts

Picture of Repair The Leg Locks on Your 728B Manfrotto Tripod w/ 3D Printed Parts
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 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.
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Step 1: Tools & Material

Picture of Tools & Material
Tools & Materials Needed:
1. Hammer
2. Drift/punch/old nail (1/8" or 3mm diameter)
3. 3D Printed Replacement collars
4. A small blade

da.cappo5 months ago

Hi Joe,
my name is Martin and I'm from New Zealand. Unfortunately I have no chance to get spare parts for my Manfrotto 728B nor do I know anyone who has a 3D printer. Coudn't you please print one more lot and send them to New Zealand?
Please let me know what you think about and how much you would charge me for.
I would be really really happy if you could do that. I love this tripod and can't afford a new one.
thanks, Martin