[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/diy/ - Do It Yourself


View post   

File: 249 KB, 1160x773, Shim1.jpg [View same] [iqdb] [saucenao] [google]
516305 No.516305 [Reply] [Original]

Alright fuckers, today I got bored and made some beer can shims.

For those of you that don't know, beer can shims are useful for people that do physical penetration testing (security auditing). They slip over the hasp of CERTAIN padlocks and with a twist, you can open said lock.

Without further adieu, here is a tutorial:

1. Tin snips
2. A tool to score your aluminum
3. Ruler
4. Beer can, the thicker the better
5. A cutting surface

>> No.516308

Almost forgot, a template.

You start with a piece of beer can 2.5 inch long by 1 inch wide.

>> No.516309
File: 209 KB, 1160x773, Shim3.jpg [View same] [iqdb] [saucenao] [google]
516309

My scoring tool...I made this with a screw, some dremeling, and a buzz.

>> No.516310
File: 295 KB, 1160x773, Shim2.jpg [View same] [iqdb] [saucenao] [google]
516310

Lay the aluminum out, measure and score.

You should get 6 or 7 shims from a 12 ounce can.

>> No.516311
File: 309 KB, 1160x773, Shim5.jpg [View same] [iqdb] [saucenao] [google]
516311

If you are functionally retarded or better, you should wind up with the blanks as seen above my hoof.

>> No.516312
File: 169 KB, 1160x773, Shim6.jpg [View same] [iqdb] [saucenao] [google]
516312

Measure twice, cut once.

Make a grid horizontal and vertical.

3 lines drawn vertical and 4 drawn horizontal, spaced evenly apart.

>> No.516313
File: 127 KB, 1160x773, Shim7.jpg [View same] [iqdb] [saucenao] [google]
516313

What the end product should look like.

>> No.516315
File: 358 KB, 1160x773, Shim8.jpg [View same] [iqdb] [saucenao] [google]
516315

Make 2 cuts going halfway up the vertical lines.

>> No.516319
File: 253 KB, 1160x773, Shim9.jpg [View same] [iqdb] [saucenao] [google]
516319

Fold the material above the uppermost horizontal line DOWN (the first quarter). This metal is sharper than shit.

>> No.516321
File: 219 KB, 1160x773, Shim10.jpg [View same] [iqdb] [saucenao] [google]
516321

Now start folding the "ears" up and wrapping them.

YOU HAVE BEEN WARNED, THIS METAL IS FUCKING SHARP. It is easy to cut yourself if you slip on this step.

>> No.516322
File: 390 KB, 1160x773, Shim11.jpg [View same] [iqdb] [saucenao] [google]
516322

Almost finished.

>> No.516323

Go on.

>> No.516325

To finish, take your tin snips and follow the pattern as seen in the last photo.


I am not responsible for any legal issues or medical bills that may result from the use and/or misuse of this information.

Check your state/federal laws before carrying the finished product on your person.

>> No.516327
File: 175 KB, 1160x773, Shim12.jpg [View same] [iqdb] [saucenao] [google]
516327

Here is the finished product.

To use, consult youtube.

The best way to use is to loop the shim around the padlock, with the tooth of the shim facing away from the locking mechanism. While pushing the shim in, turn the ears so that the shim contacts and moves the locking mechanism. Gently pull up on the hasp.

>> No.516332

Not trying to be an ass here but don't you think you've put too much thought and effort into this?

I've just made a padlock shim out of a beer can in about 2 minutes with nothing but a pair of scissors

>> No.516334

>>516332

You're not being an ass and not really.

Been feeling shitty all day and non-productive.

Plus I have ZERO fucking skill for eyeballing stuff and making mental measurements.

And I usually break the shims (hence why I cut a bunch).

>> No.516336

>>516334
>Been feeling shitty all day and non-productive.

I know that feel. Actually making this little thingie inspired by you makes me feel good about my day. Thanks anon.

>> No.516341

>>516336

Actually, credit for the beer can shim goes to a book I read by a physical security/pen tester/locksport expert who goes by the alias "Deviant Ollam".

It's been around before him, but that rounded tooth is his idea.

>> No.516488

Should I do a thread on creating tension wrenches next?