My DIY Chubb 3G114 cut-away

[devildog]

This isn't *actually* a cut-away, because I didn't 'cut away' any part of the lock, but it serves the same purpose and, in my opinion, is a much better solution for this particular lock than trying to cut through part of the case on it.

I took my 5-lever Chubb 3G114 mortice lock, and decided that the best way to do a cut-away on this lock was to remove the back panel altogether and then use a strip of metal, heated and bent to the proper shape, to secure the tensioners (the things that give resistence to the levers--whats the proper name?), levers, and curtain. I think this makes MUCH more sense that cutting into this lock, because to do so with this particular lock would require you to cut straight through the hardplate in TWO different places--would you rather bend a piece of metal, drill it for the screws, and use that to secure things or would you rather spend most of your weekend and about 20 cutting discs trying to Dremel through hardplate ???

Of course, this thread is useless without pics!!

Here's everything laid out, pretty much as it was before I really began, except I've already heated and put a bend in the metal strip (I used 1/4" sewer auger):



Here I've laid it on top of the lock so you can kinda see where I'm going with this:


Here I took the second bend back out of it because I decided I wanted to be able to operate the lock from both sides, not just the back, so the strip couldn't go over the keyhole itself, but it still needed to be able to put pressure on the curtain to hold it in place.



Here I've cut it to length, drilled the holes for screws, rounded off the ends with a file, and used a chainsaw file (fine round file) to put a notch in it where the curtain will fit but it's still pushing down on the curtain (heat up the spot just over the notch for the curtain, and whack it with a flathead screwdriver and hammer to put a little bend in it so it presses down on the rim of the curtain):



Here's the whole thing finished, installed, and working. I've put a washer over the tensioners (or whatever they're called) to help keep them in place, and two washers on top of the post for the levers to keep a snug fit there:




I think I need to take a few quality close-ups so you can really see the details better. Some close-ups then (I'll use better lighting and a tripod)?

[devildog]

Ok, here we are, much better. If anyone wants a close-up of anything in particular, let me know.

[Shrub]

DD if this lock is always going to be a practice lock you can simply drill a 10 mm hole over the stump in the cover, this means the lock acts as normal but you can see the required workings,

[Jason13]

Is that metal thing you have over the lock acting as the cover yes?

[illusion]

Is that metal thing you have over the lock acting as the cover ya?

You don't say....

[Shrub]

What does Ya mean? it must be an irish word.

[horsefeathers]

Nice effort.....but it does seem a hell of alot of work just to see the levers move relative to the stump. Like Shrub said, surely a 10mm or so hole drilled thru plate (just one hole) is all thats needed. I cant remember if the hardplate can be banged off the side plate or not on this lock, but if so it makes drilling a 'whole' lot easier.......

Or cut a perspex cover from a cd case, make appropriate screw holes etc and hey presto! 10 min job

regards

[Jason13]

I said Yes not ya check my last post i think you need glasses

[illusion]

I said Yes not ya check my last post i think you need glasses

You edited your post you jerk - it actualy says it under your post... not only this, but when I quoted it it said 'ya' so don't try and wriggle out of it!

[Jason13]

Jason you should be LP101 admin!

Why thanks

[Shrub]

Im a knob jockey.

Well as long as you agree then were all happy lets get back to the original post.

[paul1982]

Yeah i agree with drilling a viewing hole or removing the hardplate on some reveals a slit that acts as a viewing hole. I also fitted one of my locks with perspexs but is time consuming. Pretty much most of the locks the hardplate can be levered off. Here is a couple that i done

[devildog]

Yes, I could have just drilled a viewing hole, as I know that's what a lot of lockies in the UK do so as to pick/decode a lever lock they're working on, but the point was to make a cutaway so you can see as much of the internal workings as possible.

[Shrub]

Is it for loks then and not picking practise? If so i fully understand now but yes a perspex cover may be a good thing to try as the curtain on your method doesnt seem very well supported.

[devildog]

Yeah, it's more for looks than anything, a lot of cutaways are like that; I mean, they do help if you're trying to learn how to pick the lock, but a lot of people like them just because they're nifty, because you can see the internals working.

I've got a protec cutaway--you think I can pick a protec ??

Perspex? Is that like acryllic? I think making a back panel out of a pane of glass would be very cool (plastic/acryllic tends to scratch very easily, which is why I'd prefer glass IF you had the equipment to do it properly with glass).