Is there metal inserts that can be embedded into the wood knob.
I could tap the wood knob on the side and use a set screw but I prefer to insert a metal part that has the set screws to tighten the pot shaft.
Any Ideas?
I could tap the wood knob on the side and use a set screw but I prefer to insert a metal part that has the set screws to tighten the pot shaft.
Any Ideas?
Heathkit used to have inserts like that in their knobs. They are for a shaft with a flat.
If you can't find anything else, I could mail you a spare knob. You'd have to break
the plastic knob to release the insert, because it fits tightly and was pressed in.
You could make something similar out of a spacer if you can do metalworking.
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Thanks rayma but I need several pieces, I have about 6 wood knobs now to get fitted.
I need a solution and source for all future projects with wood knobs.
The insert is a good idea but need to find ID 1/4" and with set screw.
I need a solution and source for all future projects with wood knobs.
The insert is a good idea but need to find ID 1/4" and with set screw.
You can get collars that have a set screw. Drill out knob, epoxy in collar. One form of them are used to add ext. shafts to pots. Another type are known as "drill stops". I'd search for stainless steel collars on Ebay.
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Just an example for a suitable spacer, usually brass would be used.
You'd have to drill and tap a hole for the set screw.
McMaster-Carr
I have no idea what the dimensions are so I can only imagine what I might do. How about a sleeve/insert into the end of the knob sized to take the shaft and a threaded insert into the side at right angles to take the set-screw. Drill both holes first (taking care to get the first centred on axis and the second to intersect it on centre with and perpendicular to the first, press in the shaft insert, redrill the hole for the set-screw insert taking it through the side of the shaft insert, put in the set-screw insert and voila. As long as all the parts are sized properly and square to each other it should work well.
These one's come small enough for a set-screw, though they might recommend something else for the job.
hth
These one's come small enough for a set-screw, though they might recommend something else for the job.
hth
Plan B: if the pot has a knurled/striated shaft and even more if it's split, you can simply drill a slightly too small hole in the wood and pressure fit it.
Safe, knob won't wobble or fall, won't slip (sharp edges bite wood) and you can pull it whenever you wish.
Like in any plastic knob for knurled split shafts.
Safe, knob won't wobble or fall, won't slip (sharp edges bite wood) and you can pull it whenever you wish.
Like in any plastic knob for knurled split shafts.
Thanks! All the ideas are really good, I could implement each idea depending on the project. Today I was experimenting with brass inserts, it could work out nice. I like the Set Screw Shaft Collar on eBay, so its a possibility as well.
Thanks Again!
Thanks Again!
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