"Hush Puppy" Rear Sight Wings & Update

[dvelleux]

kwill1,

Please email me any PDF copies of patents for the "Hush Puppy" that you might have. I have a few, but would welcome more...

And I figured out what was confusing me with your post with dimensions for the barrel cap: you wrote 0.375" material thickness when you meant 0.125". I got it now...

 

[dvelleux]

BMCM,

I think the back end cap plug is made of the same material as the barrel cap. Just need to make the mold for it so the end that gets inserted into the back of the Mark 3 suppressor forms a friction fit to strongly engage the threads there, thus the need to embed the end of the attached lanyard well within the body of back end cap plug for durability...

 

[dvelleux]

Folks,

Good news and not so good news tonight...

First, I went to my gunsmith to pick up the 39-2 slide with the silver soldered bushing "ring." He had cut the ring down to be 0.25" thick, as based on the image seen below.The inner portion looked good, but the outer was rough, as he did not know how I wanted it finished, which is fine for now...

The not so good news was when we tried to insert my 5" barrel into the bushing, the barrel hung up on the inside rear edge of the "ring" and also contacted the back most portion of the "webbing" at the front of the slide. He is going to thread the first 0.5" of the barrel to 1/2"-28, to see if the removal of material will provide enough clearance, but if not, he will Dremel the contact points until the barrel does fit...

Also, I spoke with him regarding the slide lock. He stated a casting will be the best, less costly option and I concurred. We did agree a 3-D model needed to be made to iron out any bugs before trying to make the first slide lock. Additionally, I left a spare sear release lever with him, so he could remove the short bottom leg, to duplicate how the "Hush Puppy" safety would only protect and affect the firing pin, while the hammer could remain cocked and locked for a fast shot if needed...

That is all I have for now, but hopefully, there will be more news by week's end...

 

[dvelleux]

Folks,

Based on yesterday afternoon's chats about the slide lock, I have made a few slight changes to how each half of the slide lock will mate to matching parts. Additionally, for the first time, the slide lock halves will now be able to operate in sync with each other, meaning the halves will move the exact same way at the exact same time...

For the right half of the lock, I included a shoulder on the pivot pin, so the right side lock will have more bearing surface to be welded to the right end of the pivot pin. For the left side, a "D-hole" was designed to mate with a flat milled on the front face of the threaded shaft for the #8 nylon lock nut. With this simple change, the two halves will "sync" up with each other, thus allowing for a precise and strong lock-up to restrain the slide during firing...

Now with this news, I would like to kindly ask if someone who has access to a CAD program for generating the .STL files used by 3-D printers would be willing to step up to take the AutoCAD files I created of the lock, clean them up if need be, then render those AutoCAD files as the .STL files needed to create a 3-D plastic prototype of the slide lock. This act would be greatly appreciated...

I have posted the PDF file of the slide lock drawing, and a "compressed" file containing the two AutoCAD files for the "lucky" volunteer. I do sincerely hope someone will take pity, er, um, pick up the ball and run with it. This is the very last part that needs to created...

Keep the faith...

 

[dvelleux]

Folks,

About thirty minutes ago, I got some GREAT news. A young lady who works at the same shop the gunsmith does had told me she might be able to create the 3-D prototype. All she needed was the original files to work with. She also said she had to ask her boss about computer time. Well, she emailed back her boss said, for a double sawbuck, the prototype could be drawn on the computer and the prototype made!!!

One small step for a man, one incremental leap for all S&W fans...

 

[dvelleux]

Folks,

May have a slight setback with the 3-D prototype. Anyone wiolling to try creatign the .STL files?

 

[dvelleux]

Folks,

Chatted with the gent who is making the rear sight wings. He finally had time to water-jet and bend hopefully what will be the final design of the wings. He said it will be mailed come Monday, so by perhaps Wednesday, I will be able to report back in a very positive way...

Things are indeed slowly coming together...

 

[dvelleux]

Folks,

had an online chat with Rennie Raines, who will be the go to guy for the grips and the holster, and a gent named Dan. Dan took the CAD files for the slide lock and produced the first images of the left half of the lock. Things look GREAT so far...

VERY soon indeed...

 

[dvelleux]

Folks,

The slide lock is ready for prototyping...

 

[dvelleux]

Folks,

BEHOLD!!! The rear sight wing design is now finalized and ready for production!!!

Justin Meyerholtz did a SUPERB job on tweaking the design for the final time. The windage adjustment screw is now fully accessible and there is still enough "meat" left on the metal for strength...

I am pleased as punch right now...

VERY soon, folks...

 

[dvelleux]

Folks,

Just got a status update from Bill (aka BMCM) regarding his work...

He made one modification to the chamber plugs, to better match what is seen in the image in Post #12. He is also working on creating a 1:1 model of the faux Mark 3 suppressor, to be sent to the ATF for a ruling. Additionally, he is working with Rennie Raines on the muzzle cap, barrel cap, and back end cap plug. Rennie has vast experience making molds, so Bill is making the "positives" for Rennie to make the "negatives" of these important parts to the accessory kit...

To say I am pleased right now is again an understatement. During the past three years, the efforts of a small handful of dedicated artisans has produced some stunningly recreated examples of items thought never to be made again. Yet here we are, on the cusp of placing a very faithful, shooting reproduction of an iconic Vietnam-era handgun into the reverent hands of everyday folks who wish to shoot their own copy...

Gotta love it...

Keep the faith...

 

[dvelleux]

Folks,

Just received four chamber plugs from Master Chief Bill (BMCM). They are indeed ready for production...

 

[BMCM]

See post #12 for a picture of what I have. Dimensions:

Muzzle cap:
1.25 diameter
0.375 Thick
0.25 diameter of depression
0.125 depth of depression

Kevin,

IRT the muzzle cap can you get me some measurements on the molded in o-ring? Did the 1-1/4 diameter you measured include the width over that "o-ring"? If so, I need the diameter of the basic disc too. I'm going to try making a rigid facsimile of the cap to be used as a mold making positive. To do so I'll need pretty precise measurements of the actual article which will also play into machining the mating recess in the scale model can. You wouldn't be inclined to lend me the thing for a couple days would you?

Cheers
Bill

 

[dvelleux]

Folks,

I would like to show th3e "positives" for the molds to make the barrel cap and the back end chamber plug...

 

[dvelleux]

Folks,

I am pleased to report the 3-D printing of the slide lock will happen next week...

 

[BMCM]

Making a little progress on the model.

Front end cap in the chuck.

And fitted to the body.

Plenty more stuff yet to do.

Cheers
Bill

 

[kwill1911]

Kevin,

IRT the muzzle cap can you get me some measurements on the molded in o-ring? Did the 1-1/4 diameter you measured include the width over that "o-ring"? If so, I need the diameter of the basic disc too. I'm going to try making a rigid facsimile of the cap to be used as a mold making positive. To do so I'll need pretty precise measurements of the actual article which will also play into machining the mating recess in the scale model can. You wouldn't be inclined to lend me the thing for a couple days would you?

Cheers
Bill

Bill,

I sent you a PM about this.

Kevin

 

[dvelleux]

Folks,

Spoke with the person who is going to be 3D printing the slide lock. She said it should happen next week...

 

[dvelleux]

Folks,

Just got an email from the young lady who is making the 3D printing of the slide lock. It is being done later today. Perhaps early as tonight or tomorrow, I hope to post the first images of this vital component..

Think good thoughts...

 

[dvelleux]

Folks,

May I present the first 3-D printing of the slide lock...