[Venkman's Swagger]

Damn!! So jealous of all your alumimiumness. WAY TO GO GT

[barison82]

Awesome work! Love the acorn nut idea too

[GohstTarp]

Damn!! So jealous of all your alumimiumness. WAY TO GO GT

The CPU64 thrower has been great to work with. Thanks for the support, VS!

[GohstTarp]

Awesome work! Love the acorn nut idea too

Thank you and... thank you! I wanted to use something I could tighten down and didn't like the idea of a loose nut hanging around on there... LOL.

[barison82]

I wanted to use something I could tighten down and didn't like the idea of a loose nut hanging around on there... LOL.

Lol...you're welcome! I like this idea a lot, I've got RJ's pop-mech system as well, I might have to replicate this myself What was the size of the acorn nut you used?

I just love the way you've carried out each step of this build so tidily, and so thoroughly...just what I'm trying to do as well. It's a bit more complicated for me as I won't be the one who is actually building the pack, so I'm having to provide specific direction in a lot of these areas.

[Venkman's Swagger]

Damn!! So jealous of all your alumimiumness. WAY TO GO GT

The CPU64 thrower has been great to work with. Thanks for the support, VS!

You're welcome man. My pleasure! I'm very tempted by his Thrower.

[GohstTarp]

What was the size of the acorn nut you used?

I used a 4-40 brass acorn nut

I just love the way you've carried out each step of this build so tidily, and so thoroughly...just what I'm trying to do as well. It's a bit more complicated for me as I won't be the one who is actually building the pack, so I'm having to provide specific direction in a lot of these areas.

Thanks! Over-communication will be your friend in any collaborative project. Looking forward to seeing more of your pack progress.

[barison82]

Thanks a lot. I should have known the answer to this, as I have the pop tube assembly myself, and just checked the instructions...sorry I've asked so many questions, I must look a bit dim lol!

[GohstTarp]

I must look a bit dim lol!

Nah... More like excited and motivated

[barison82]

Lol...that's a relief...and I am definitely feeling positive about this project! Thanks a lot man Nearly there now [emoji4][emoji106]

[GohstTarp]

I had some time recently to put together more of my proton wand and take a few shots...






Installed Parts

• * Clippard R-701 from the GBFans Store attached with 10-32 Stainless Steel Slotted Fillister Head Bolts (3/4” length)
  * Legris Banjo Replica Fittings from the GBFans Store
  * Clippard Hose Barbs from the GBFans Store
  * Orange Hat Light Lens from the GBFans Store
  * Front Handle by CPU64
  * Trigger/Instrument Bar by CPU64
  * Thrower Cylinders by CPU64

The only major components left to install are the Nick-A-Tron Grips and RJ's newly redesigned Loom Attachment piece...


But before I go, here are some of the Portland Ghostbusters visiting Things From Another World Comic Book Shop in Milwaukie, OR on Free Comic Book Day, 2016...
(from L to R... Dr. Frisby, Dr. Benton and Dr. Marshall)

Dr. Frisby's Proton Pack had a strap issue just before this photo was taken and is not pictured. I hope you are able to make an easy fix, Andy

And one last thing... a demo of my Freeky Geeky Pop Mech after installation...

Direct link in case embedded doesn't work - https://www.youtube.com/watch?v=tQVAWBzmQVI

[pyhasanon]

Great stuff, man! Almost makes you not want to paint it, huh? Did you stress test the pop mech? I broke like 3 acrylic tips during my pop mech installation... That "pop" is pretty powerful!

[Venkman's Swagger]

Hubba Hubba!! Awesome job GT

[barison82]

Looks awesome! I love the all that unpainted aluminium too [emoji4][emoji106]

[GohstTarp]

Great stuff, man! Almost makes you not want to paint it, huh?

Thank you, Phil! I know what you mean, it looks so pretty in its unpainted state.

Did you stress test the pop mech? I broke like 3 acrylic tips during my pop mech installation... That "pop" is pretty powerful!

Indeed it is pretty powerful... I haven't done any serious stress testing, but I did review your thread before tackling this area and was sure to epoxy the metal inner clear tube support piece in really well. So far, so good! How has yours been holding up lately?

[GohstTarp]

Hubba Hubba!! Awesome job GT

Thank you much, Venkman's Swagger!

[GohstTarp]

Looks awesome! I love the all that unpainted aluminium too

Thanks, Barison! I'm very happy with all the metal shininess

[bishopdonmiguel]

That's a great photo from Free Comic Book Day.

[GohstTarp]

That's a great photo from Free Comic Book Day.

Thanks, Bishop! The weather was nice and we had a great time.

[barison82]

Thanks, Barison! I'm very happy with all the metal shininess

You're welcome I should think you are. Stunning workmanship there!

[JackSpittal]

Hey you wouldn't know how to cancel an order on this would and if so will I get a refund?

[pyhasanon]

Did you stress test the pop mech? I broke like 3 acrylic tips during my pop mech installation... That "pop" is pretty powerful!

Indeed it is pretty powerful... I haven't done any serious stress testing, but I did review your thread before tackling this area and was sure to epoxy the metal inner clear tube support piece in really well. So far, so good! How has yours been holding up lately?

Since I epoxied it, working like a champ! No issues ever since! I keep it in the retracted position all the time too, and I have had no issues when it releases, still as strong as ever! You would think after stretching the spring out over a long period of time would weaken the spring, but no sign of it so far...

[Kingpin]

Hey you wouldn't know how to cancel an order on this would and if so will I get a refund?

Cancel an order on what?

[GohstTarp]

You would think after stretching the spring out over a long period of time would weaken the spring, but no sign of it so far...

That's the main reason I went with springs and never even considered using the rubber bands. I wanted something that would survive over the years, but I suppose they could get rusty

[CPU64]

I use a stretch spring instead of a compression type, the pop is less violent and easier on the aluminum.

[barison82]

I use a stretch spring instead of a compression type, the pop is less violent and easier on the aluminum.

That's something to consider...

[GohstTarp]

I use a stretch spring instead of a compression type, the pop is less violent and easier on the aluminum.

Cool! It would really interesting to see your Pop Mech design. Do you have any pictures handy?

[GohstTarp]

For my thrower grips, I went with Nick-A-Tron's brown grips and I'm very happy with the parts...

My first step was to get a better fit with my thrower handles. As you can see here, they didn't mate as well as I would have liked...

Maybe there is a better way, but it was an easy fix to wrap some sand paper around the handles and sand down...

Before too long, I had the bottom grip sanded down...

Next, I found some reference pics to determine how to I wanted the front grip to look...
Shawn Marsall's 1984 Spengler Pack Photo

Profiles in History Spengler Pack Photo

After that, I sanded down the front of the grip about 2.5mm and the rear about 2mm (IIRC). As I got close, I checked the fit often until I got it nice and perfect. With the grip in place, I marked the location of the rotation handle cap head and drilled out the area using a 1/4" Forstner bit...

Then I positioned the grip for attachment on the front handle and drilled pilot holes through the pre-drilled screw holes and into the grips, using the bit that came with the 6-32 drill/tap set. I got a little too overzelous with the drill for the angled hole and went right through the grip. But it was an easy fix with some black milliput. After drilling the pilots, I removed the grip again and re-drilled the holes using a 1/8" drill bit. Finally, I placed the front grip back on the handle and screwed in 1" 6-32 cap head bolts all the way. The 1/8" holes make for just the right amount of resistence with the 6-32 bolt and a nice strong connection. Here is what I ended up with...


You can see where were I repaired the grips with a little black milliput

It turned out better than I had hoped and the front handle feels like a dream with the grip attached.

Just two more items to attach before I move on to electronics...
- Rear Grip
- Loom Attachment piece

Almost there.

[bishopdonmiguel]

Great technique using that sandpaper. Coming together nicely!

[Venkman's Swagger]

I echo what Bish said. Nicely done man