rusty bodie
Senior Retro Guru
- Feedback
- View
any ideas on how to get the bugger out?!
:evil:
:evil:
HELP! 3mm Tap Broken Inside Dropout!!
- Thread starter rusty bodie
- Start date
Penfold6290
rBotM Winner
Now I don't believe you wanted to do that!
Do you have an engineering firm near you with a spark erosion equipment? Removing hardened steel from lovely soft mild steel is tricky at the best of times so better leave it to the professionals IMHO.
Martin
Do you have an engineering firm near you with a spark erosion equipment? Removing hardened steel from lovely soft mild steel is tricky at the best of times so better leave it to the professionals IMHO.
Martin
rusty bodie
Senior Retro Guru
- Feedback
- View
that's interesting martin as my engineering chum also recommended
this technique. unfortunately my timing is a bit crap as he
has just LEFT the company that had that equipment!
this technique. unfortunately my timing is a bit crap as he
has just LEFT the company that had that equipment!
Penfold6290
rBotM Winner
Ah, that is pretty poor planning! Did he leave under a cloud or would he still be able to get it sorted for you or at least point you in the direction of an ex colleague who would sort it in his lunch hour for a beer or three?
Martin
Martin
rusty bodie
Senior Retro Guru
- Feedback
- View
good thinking, batman! will give him a shout and see what he says.
was also thinking as an alternative, if there is perhaps something
that i could sit in the dropout to stop the wheel pulling to one side?
remember those plastic frame packers you used to get with a new
frame to stop the back end getting crushed in transit...? hmm...
was also thinking as an alternative, if there is perhaps something
that i could sit in the dropout to stop the wheel pulling to one side?
remember those plastic frame packers you used to get with a new
frame to stop the back end getting crushed in transit...? hmm...
Yup spark erosion is really the only way that is being removed, and even then you may just find it cheaper to cut out and get a new drop out welded in.
Small diameter taps are a nightmare and require absolute concentration and accuracy other wise they fail. Horrible things.
Small diameter taps are a nightmare and require absolute concentration and accuracy other wise they fail. Horrible things.
torqueless
Senior Retro Guru
Can't see from the photo, but presumably if this is a tap it has some longitudinal grooves in it for clearing swarf. Occurs to me that if you can locate the broken ends of them you may be able to improvise a tool with which to apply leverage .. a small, tough, two-short-pronged tool? Re-shaped screwdriver bit or something? If it's a tapered tap, you may have a better chance than if it's a straight one. A long-shot, and a labour-intensive one, but fairly risk-free...if it don't work then it don't work. Just an idea..I'm not an engineer and have no idea what 'spark erosion' is.. take it for what it's worth. Good luck!
Citoyen du monde
rBotM Winner
This is a cautionary tale about always using sufficient lubrication and not using cheap taps. I have been able to remove a few taps like this for friends who have done what you did by using a cutting wheel on a dremel and cutting a screw driver slot in the end of the broken tap if visible.
Similar threads
