Author Topic: Rat Gat (Read 61408 times)

« **Reply #80 on:** August 16, 2014, 08:24:40 PM »

I\'m using acrylic tube for set-up, and checking dimensions before
putting holes in the big-ass tubing. I don\'t want to screw that up.
I decided on a two / one ratio for the gears. 15 & 30 tooth

« **Reply #81 on:** August 23, 2014, 12:02:25 PM »

Here\'s the method I use to check clearance between follower, cam, and recoil point.

« **Reply #82 on:** August 23, 2014, 07:36:35 PM »

Cutter,
How are you going to cock the hammers on this design?
bruski

« **Reply #83 on:** August 23, 2014, 11:03:52 PM »

Bruski,
Good hearing from you again :!:
Using the same cocking method, well almost.

« **Reply #84 on:** September 04, 2014, 06:54:07 PM »

Here\'s a visual comparison of the two cams and rings.

« **Reply #85 on:** September 05, 2014, 11:24:05 AM »

The real change is in the movement.
The cams angle changes about 8Â° from 25Â° to 17Â° or
about 30% difference. Creating less friction getting to
the firing point, and smoother transition to the
recoil point.

« **Reply #86 on:** September 12, 2014, 02:29:15 PM »

After a few days cutting the rear collar, I set the gears today.

« **Reply #87 on:** September 27, 2014, 04:00:13 PM »

Here I\'m comparing impact marks to determine the force needed for the Rat.
The casing on the right is from my stock Ruger 10/22 rifle.
Turns out between 2.5 & 3 lbs of force

« **Reply #88 on:** September 28, 2014, 02:43:55 PM »

Cutter,
It must be nice to still have some CCI 22 ammo on hand. I think that everybody is hoarding it or something else perhaps.
bruski

« **Reply #89 on:** October 04, 2014, 02:26:29 PM »

Now I\'m at the point of dropping them in one at a time
for test firing. Maybe next week I\'ll have some video.

« **Reply #90 on:** October 05, 2014, 01:39:29 PM »

I ran my last 20 blanks through with no problems,
Looks like good hits, so on to the next step.

« **Reply #91 on:** October 11, 2014, 07:35:55 PM »

Images of bipod

« **Reply #92 on:** October 13, 2014, 11:38:56 PM »

Cutter, looking forward to seeing that accles drum mounted and working. Looking good.

« **Reply #93 on:** October 19, 2014, 04:03:22 PM »

Me too, gbull.

Now that I have it standing, two operations left, feed it and make it poop.

« **Reply #94 on:** October 25, 2014, 07:32:38 PM »

Material should be in Monday for the magazine.
8.375 diameter
Here\'s the .DXF file

« **Reply #95 on:** October 26, 2014, 10:43:02 AM »

Very nice. Flash Gordon would have loved to have this gun to fight the merciless Emporer Ming from Mars.

« **Reply #96 on:** October 26, 2014, 02:50:38 PM »

Good one Don!
Some of the members will need to search for that.

« **Reply #97 on:** October 30, 2014, 04:26:38 PM »

I finished the propeller using Delrin, because it is a slippery plastic.
Should be stable enough with the guide on the OD.
Propeller is 7.875 diameter

« **Reply #98 on:** October 31, 2014, 11:02:12 AM »

Cutter,
Do you have that propeller in a STL type of file please?
Thanks,
bruski

« **Reply #99 on:** October 31, 2014, 11:03:27 AM »

cutter,
Do you have that propeller in a STL type of file please?
Thanks,
bruski

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Author Topic: Rat Gat (Read 61408 times)