I've got a cheap Chinese macro rail that I'd like to modify with a vernier dial.
Does anybody know how to take the adjustment knob off?
It looks like it should pry off, but I don't want to break something I can't afford to replace.
Modify a Cheap Macro Rail?
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Sorry, I missed this until just now, getting ready for a job interview.BugEZ wrote:Can you post a photo or link to a description of the rail? Many rails are made in China.
Keith
I'll try to post a picture of the actual item today.
In the meantime, here's a picture of a completely identical rail from Amazon:
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I didn't notice that at first. I'll have to take a look.Grahame wrote:Is that a pin in the center of the narrow collar in the bottom pic.
If so it should tap out with a small punch or fine nail etc.
I just wanted to take the plastic knob off so that I could glue the dial to the side of the body around the nut, and put the knob back on.
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I actually looked for that, not necessarily with exactly that verbiage. Long experience has shown me that a trivial change in terms can RADICALLY change search results. I'll give it a try.BugEZ wrote:A web search on "remove knob from macro rail" produces much interesting advice. Worth a try!
K
Thanks.
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What I had considered is printing the dial markings on card stock, gluing them to a sheet aluminum (or brass) disk. I would then cut the composite disk so that it could be twisted and fit over the shaft and glued in place.elf wrote:If you haven't been able to remove the knob, then try this:
Make the dial in two layers. Split each layer in half and fit around the knob. Fasten the layers together with some small screws.
So far, the paper clip has been an acceptable stopgap, but I do intend to come up with a better, solution.