Battery Grip Stuck!!

danny_bhoy said:
That's a good idea Brian - I've got some spare electrical cord somewhere. Tried the same thing with elastic bands but they didn't get enough purchase on the screw.
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I also was thinking thin cord to 'whip' around the visible thread but IMO it is the friction and continuous grip that is needed.

So how about..............use a coarse cord like a very thin braided nylon string thin enough to go round the visible metal thread once or even better twice. Now attach one end to a screw fixed into an immovable support or maybe a lump of wood you can hold in a vice or simply on the floor with your foot> with the other end of the cord held firmly in one hand and the body held in the other maintain tension on the cord and push or pull the body along the taut cord (need to determine the right direction that will unscrew it).

My thinking here is the that attachment screw will give ever so slowly (maybe even quickly as you can see it must be loosened?) and by the method I outline spinning the screw...............just need to start carefully to ensure you make all the effort in the right direction i.e. do not tighten it inadvertently and close the gap to a point where the cord is seized.

I hope my description makes sense and that you can suss out what I am trying to describe :)

The principle of what I am trying to describe is like the "bow lathe" or "strap lathe" if you Google either term you will find videos and descriptions etc

Edit ~ been Googling for narrow diameter braided cord in quantities that will not break the bank. Could not find 2mm cord but did find this 3 to 4mm cord http://www.amazon.co.uk/Pepperell-PARA-1601-Parachute-Cord-Feet-Pkg-White/dp/B007CM4I6G/ref=sr_1_fkmr0_1?ie=UTF8&qid=1399592405&sr=8-1-fkmr0&keywords=3mm Lacing cord 16 plait, nylon

So maybe that will fit the bill to try the method and the darned thing off for you??? Found a 2mm cord in case needed ;) http://www.amazon.co.uk/2mm-Replace...UTF8&qid=1399592672&sr=8-7&keywords=2+mm+cord
 
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Oh for the record when I had my 40D and got the grip I had read the horror stories of the gear stripping and worked out a trick to ensure it was firmly attached but without simply relying on turning the wheel.

What I found was that at the point it felt tight just by turning it I held the grip against my stomach and the body by the pentaprism and just pushed the body against the grip and I could get I think it was another 1/4 turn with minimal strain on turning the wheel. I reversed the procedure for removing the grip. The moral of the story and my trick was never to apply too great a turning force to the plastic wheel ;)
 
Box Brownie said:
I also was thinking thin cord to 'whip' around the visible thread but IMO it is the friction and continuous grip that is needed.

So how about..............use a coarse cord like a very thin braided nylon string thin enough to go round the visible metal thread once or even better twice. Now attach one end to a screw fixed into an immovable support or maybe a lump of wood you can hold in a vice or simply on the floor with your foot> with the other end of the cord held firmly in one hand and the body held in the other maintain tension on the cord and push or pull the body along the taut cord (need to determine the right direction that will unscrew it).

My thinking here is the that attachment screw will give ever so slowly (maybe even quickly as you can see it must be loosened?) and by the method I outline spinning the screw...............just need to start carefully to ensure you make all the effort in the right direction i.e. do not tighten it inadvertently and close the gap to a point where the cord is seized.

I hope my description makes sense and that you can suss out what I am trying to describe :)

The principle of what I am trying to describe is like the "bow lathe" or "strap lathe" if you Google either term you will find videos and descriptions etc

Edit ~ been Googling for narrow diameter braided cord in quantities that will not break the bank. Could not find 2mm cord but did find this 3 to 4mm cord http://www.amazon.co.uk/Pepperell-PARA-1601-Parachute-Cord-Feet-Pkg-White/dp/B007CM4I6G/ref=sr_1_fkmr0_1?ie=UTF8&qid=1399592405&sr=8-1-fkmr0&keywords=3mm Lacing cord 16 plait, nylon

So maybe that will fit the bill to try the method and the darned thing off for you??? Found a 2mm cord in case needed ;) http://www.amazon.co.uk/2mm-Replace...UTF8&qid=1399592672&sr=8-7&keywords=2+mm+cord
Click to expand...

I get exactly what you mean and it's a really good method - I'm sure I've got something similar in the garage - I'll give that a try after work tonight!
 
Box Brownie said:
Oh for the record when I had my 40D and got the grip I had read the horror stories of the gear stripping and worked out a trick to ensure it was firmly attached but without simply relying on turning the wheel.

What I found was that at the point it felt tight just by turning it I held the grip against my stomach and the body by the pentaprism and just pushed the body against the grip and I could get I think it was another 1/4 turn with minimal strain on turning the wheel. I reversed the procedure for removing the grip. The moral of the story and my trick was never to apply too great a turning force to the plastic wheel ;)
Click to expand...

I probably have over tightened. I've always been a bit paranoid about it coming loose so looks like I've maybe 1/4 turned it too much at some point.

As somebody said earlier though, why on earth did they use little gears and PLASTIC ones at that!
 
Hope you manage to get to get the grip off okay.

I was going to suggest some sort of cord to try grip the screw thread as you can see some of it.

As you've obviously loosened it some, you need to make sure you don't pull at an angle otherwise it could add some resistance to the screw - perhaps see if someone else can hold the camera and you can wrap the cord round it and pull it whilst keeping tension on it - bit like the principal of opening an old top window which has a cord and metal opener on a runner...
 
Not sure if you have attacked it yet but this was the video I was looking for when I posted the other one.

Interesting that the video states the replacement plate comes with a brass gear.


HTH

David
 
Thanks for the replies guys - sorry for the delay, been away for the weekend.

Before I left I tried once more to get the grip off with cord and it didn't work. I've managed to actually tighten it enough so that the grip is powering the camera sonar least it works for now.

So the dilemma I'm left with is do I take it to the local camera repair shop who want £20 just to look at it and give an estimate (they said the work would take up to 3 weeks too) or do I go down the DIY route. The video looks do-able but I'm no handy man and there's the very really possibility of me cocking this up beyond repair.

Ah the money-pit that is photography eh!
 
Interestingly - as this is a known problem - or so it appears - if both the camera and grip are genuine - had you thought about emailing Canon to see their take on it from a warranty perspective? It may be over a year old - but isn't there some piece of European legislation that could be used that states goods must be fit for the purpose for quite a considerable time beyond the manufacturers guarantee?
 
cymruchris said:
Interestingly - as this is a known problem - or so it appears - if both the camera and grip are genuine - had you thought about emailing Canon to see their take on it from a warranty perspective? It may be over a year old - but isn't there some piece of European legislation that could be used that states goods must be fit for the purpose for quite a considerable time beyond the manufacturers guarantee?
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It's a nice thought Chris but I bought the camera and grip from this forum so haven't got any concrete proof of purchase (other than the thread). In an ideal world Canon should deal with it as they're both genuine parts but you know how it is.

Saying that I'll be researching that legislation tomorrow (when I should be doing work) :)
 
It maybe worth getting a price from canon if your not too confident to have a go yourself . It may come under a fixed price repair.
 
nickjohnwatson said:
@danny_bhoy could you give APM Camera repairs a call in old eldon square?

They may have a look at it, nice guys in there, could probably sort it for you there and then.

Address: 2nd Floor, 6 Eldon Square, Newcastle upon Tyne, Tyne and Wear NE1 7JG
Phone: 0191 221 2340

:-)
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Cheers @nickjohnwatson - I actually had the camera in there a few weeks ago for a sensor clean. Can't go wrong for a tenner!

Never thought to ask them. I'll give them a bell tomorrow. What I'm really looking for is someone who won't take my baby away from me for 3 weeks :) :)
 
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