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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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18th Jan 2023, 10:50 pm
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#1 |
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Tetrode
Join Date: Mar 2018
Location: Nottingham, Nottinghamshire, UK.
Posts: 88
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Knob spring clips
I've been doing a bit of experimenting recently making control knobs with a 3D printer. The results are very encouraging but what is missing so far is a spring clip to hold firmly on the D shaped shaft. All I've been able to find so far are clips supplied as spares for electric cookers and the price is eye-watering - five or six pounds each!
Could anyone suggest where I might be able to find a couple of dozen or so clips at a sensible price? Suggestions for any other means of securing knobs would be welcome. I'm trying to avoid screws though. Thanks Ian. |
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18th Jan 2023, 11:08 pm
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#2 |
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Nonode
Join Date: Jun 2010
Location: Spalding, Peterborough, Cambridgeshire, UK.
Posts: 2,858
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Re: Knob spring clips
What about some of those that are used for clamping hoses onto fittings? I saw some in my garage just the other day, first glance thought they were for knobs. They were in a box of knobs as well. Will see if I can find them again and post a picture.
Bit like these https://www.ebay.co.uk/itm/265250961526 Rob
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19th Jan 2023, 12:02 am
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#3 |
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Nonode
Join Date: May 2007
Location: Redruth, Cornwall, UK.
Posts: 2,573
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Re: Knob spring clips
Some years back. I had to find a replacement spring metal piece for a gas cooker control knob. It occured to me that a junior hacksaw blade was around the right section. Carefully snapping off a piece of the correct length and fitting it to the knob did the trick very well.
I would imagine this spring metal could also be used for some radio control knobs. Regards, Symon |
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19th Jan 2023, 1:14 am
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#4 |
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Dekatron
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,339
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Re: Knob spring clips
There are at least two different types of these clips that I have encountered. The post #3 type is presumably a straight piece of sprung steel that fits in slits at the inside of the boss either side of the D. The second type is a generally C-shaped clip with a straight central portion and having inwardly-directed ends that locate in grooves in the outer surface of the boss.
Last edited by emeritus; 19th Jan 2023 at 1:17 am. Reason: typos |
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19th Jan 2023, 10:53 am
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#5 |
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Dekatron
Join Date: Dec 2004
Location: East Yorkshire, UK.
Posts: 3,987
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Re: Knob spring clips
Many types of fasteners and many sizes of each. Here are just a few. I can let you have 7 shown. They are to fit a 1cm, stump?? x 5.6mm H. I will PM you.
John.
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19th Jan 2023, 2:27 pm
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#6 |
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Tetrode
Join Date: Mar 2018
Location: Nottingham, Nottinghamshire, UK.
Posts: 88
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Re: Knob spring clips
Thanks for all the suggestions. The clips shown above the ruler in John's post are the sort of thing I'm looking for. Either style would do.
Robin's suggestion of hose clips is a good one. I didn't realise they were available in sizes small enough for this. I'm going to order a selection and see how I get on. I should be able to tweak my 3D models to suit. I've attached photos of one of my attempts. Thanks again Ian. |
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