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Post by mikeyb on Dec 15, 2023 13:50:17 GMT
Hi, I'm looking for help with my Orsonic headshell. I used a headshell screw to tighten the azimuth part, it was one of those little screws that are only half threaded. I've obviously overtightened it and on removal the screw has snapped at the join of the thread and non threaded part, leaving the thread part stuck in the female thread. Anyone here able to remove it without damaging the headshell or the headshell female thread. I did think about drilling it out but I don't have a vice or any way of ensuring a perfectly straight go at drilling it out. I even thought of a tiny dremel bit to etch a groove in the top of the broken screw to try and unscrew it with a small flat headed screwdriver. At you can see it only affects the one half of the headshell azimuth locking part. Any thoughts? I'm going to need it for my new tonearm 😉     |
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Post by stryder5 on Dec 15, 2023 17:23:39 GMT
Whoever tries to drill this out, and it is viable, will need a cobalt drill as the screw part left in there may be tough, if it was headshell screw maybe aluminium? Makes it easier.
Years ago I had a similar problem, bought a range of cobalt drills, starting at 1mm.
Best not to use a vice.....mould bluetac.....plasticine ....etc into a mould to hold it in place while drilling.
Gary
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Post by mikeyb on Dec 15, 2023 18:53:20 GMT
Whoever tries to drill this out, and it is viable, will need a cobalt drill as the screw part left in there may be tough, if it was headshell screw maybe aluminium? Makes it easier. Years ago I had a similar problem, bought a range of cobalt drills, starting at 1mm. Best not to use a vice.....mould bluetac.....plasticine ....etc into a mould to hold it in place while drilling. Gary That's great advice, don't think the screw is very hard, I hardly touched it and it snapped, but I suppose the damage could have been done tightening it in the first place. |
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Post by stryder5 on Dec 15, 2023 21:03:28 GMT
If you drill normally with a very small drill then put the drill into reverse with a slightly larger drill you may be lucky and the remnant may unscrew......if your lucky....
Gary
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Post by lurch on Dec 15, 2023 21:15:08 GMT
Had this but with a 5mm stud in a motorcycle engine block, used a small screwdriver watchmakers screwdriver as a, chisel and gently tapped it round using a slightly raised bit on the broken face.
You should be able to do similar with a watchmakers screwdriver.
Firm but gentle taps is the answer, firstly vertically (like a chisel) to get a groove to key to then sideways at an angle and it should rotate, eventually showing enough to get a small pair of pliers on.
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Post by brian2957 on Dec 15, 2023 21:15:14 GMT
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Post by stryder5 on Dec 16, 2023 8:49:40 GMT
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Post by mikeyb on Dec 16, 2023 10:24:42 GMT
I've just had a message from Angus (Phonomac) offering to fix it for me, which is fantastic!
Save me making a mess of it anyway 😁
Thanks for all the help/tips 😊
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,083
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Post by Bigman80 on Dec 18, 2023 9:04:26 GMT
I've just had a message from Angus (Phonomac) offering to fix it for me, which is fantastic! Save me making a mess of it anyway 😁 Thanks for all the help/tips 😊 He's a top banana isn't he. |
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Post by mikeyb on Dec 18, 2023 9:39:24 GMT
I've just had a message from Angus (Phonomac) offering to fix it for me, which is fantastic! Save me making a mess of it anyway 😁 Thanks for all the help/tips 😊 He's a top banana isn't he. He sure is 😊 |
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