I do some of this type of work on the side. Mostly for local people who only have cheap tripods and just need some DIY work to make what they have actually be more solid and functional. Both of your links refer to threads where I've posted my mods.
I've done a lot of mods to tripods and mounts, making my own adapters, extensions, spreaders, etc. and I've considered doing side work with it. But here's the thing...I share my mods with others by posting them here, because most of these mods are very inexpensive and easily done by just about anyone who is handy. While the parts are cheap, and my time spent doing it is free for my own gear, doing it for someone else, and then having to ship it suddenly increases the cost if I were to get paid for my time.
It also helps that I have the actual mount/tripod I'm working with, so that everything fits and works as it's supposed to. Most mounts have proprietary attachment designs, and since they're all a little different, what works with my own mount, may not work with someone else's.
There are a few things I've designed that are more universal that probably could sell. My problem is I don't have a metal machine shop. So many of my mods are custom, one-off DIY, using wood, PVC, galvanized metal, etc. Basically they are readily available, parts-based mods that are sufficient for my needs/wants. Selling these things to others, I would rather these modded parts be machined out of aluminum and more attractive and "professional" in fit and finish before I would consider making them available to others.
Before you know it, suddenly I'm competing with small companies who sell these things for quite a bit, at least for them to be adequately compensated, much less profitable enough to make it worthwhile. What starts out as a cheap DIY mod, becomes a big production with more costs in R&D/Materials/Machining, etc. Doable, but there is more to it than just what I freely share with others.
Edited by MarkMittlesteadt, 30 January 2023 - 01:00 PM.