I hope this works! Making a new IZh-35m extractor

[Tzed250]

I really enjoy shooting my IZh-35m. One problem I have is the anxiety of the extractor breaking or flying into the great unknown. I finally got off of my butt and made one.

Most of the info I used can be found in this thread:

http://www.targettalk.org/viewtopic.php?p=114476

I cut the part on a CNC Horizontal boring mill using a #2 center drill, a 5/64 twist drill, and a 2mm 3-flute carbide endmill. The stock used was a flat washer for a 5/8 bolt. I haven't installed it yet, but the dimensions and appearance are correct. Before anyone asks, I'm not sure if I will make these for anyone but myself, but what I will do is post the program that can be used on any machine that uses a FANUC controller. The next hurdle is the plunger/spring assembly, but after this I think I can get there from here.

P.S.

I have to chuckle a little. This is the smallest part I think I've ever made. The machine I run has 2 meters of X stroke and the parts I run are often 1000lbs or more.

[fc60]

Greetings,

I look forward to your NC code with the greatest anticipation!

Cheers,

Dave

[Tzed250]

Greetings,

I look forward to your NC code with the greatest anticipation!

Cheers,

Dave

Bear with me. I left my thumb drive at work and won't be back until Monday. I should add that only the profile was done on the mill. The angles and radii were added by hand work, maybe 45 minutes worth.

Here is the part while still on the machine. You can see the small retainer left over. The part was cut away with a bandsaw.

[Tzed250]

Here are the original and new parts together, original on the left and bottom. Also a picture of the new extractor installed.

[JamesH]

Let me know how it goes, if the drawing needs any updates.

[PFribley]

good work!!!

[Cricman]

What is the hardness of your donor material? Will it need to be heat treated?


cricman

[Tzed250]

The washers are not hard, but they are tough. I will try it as is and determine if hardening is needed.

[rmca]

That extractor is very similar in appearance to the ones on the Ruger mk I/II/III.
I don't know if the measurements match, but they look almost equal.

http://shopruger.com/Mark-I-II-III-Extr ... nfo/61070/

They might just need some fitting... Just another option.
Good job on making that extractor!

[Andre]

Since this washer is mild steel, you will only be able to harden it by case hardening.

[David Levene]

Remember that, on a blowback pistol, the extractor doesn't do very much apart from acting as a pivot to throw the empty case away from the gun.

It certainly doesn't "extract" the case during the firing sequence.

I once shot half of a match in a European Championships without an extractor on a FAS602, without a problem. I know that many others have similar experiences.

[j-team]

I once shot half of a match in a European Championships without an extractor on a FAS602, without a problem. I know that many others have similar experiences.

At least the 602 had an extractor. Didn't the 601 just do without?

[Tzed250]

I once shot half of a match in a European Championships without an extractor on a FAS602, without a problem. I know that many others have similar experiences.

At least the 602 had an extractor. Didn't the 601 just do without?

I believe others have tried to run the IZh without an extractor and encountered reliability issues.

As promised, here is the NC code for a FANUC controller, though the tool paths will work for many different machines.


%
O0035(IZH-35m EXTRACTOR)
(2/1/2016)
G0G17G20G40G49G80G90G94
T22(2 CENTER DRILL)
M6
G0G43H22Z15.
G0W-3.
G0G54X0Y0
M1
G0Z2.
M3S1500
G0X-.08Y.2
G82X-.08Y.2Z-.03R.05P999F.9
X.0394Y-.0264
X.239Y-.0394
G80M9
G0Z2.M19
G0G49Z25.
M1
T22(5/64 DRILL)
M6
G0G43H22Z15.
G0W-3.
G0X0Y0
M1
G0Z2.
/M8
M3S2888
G0X-.08Y.2
G73X-.08Y.2Z-.14R.05Q.04F1.1
X.0394Y-.0264
X.239Y-.0394
G80M9
G0Z2.M19
G0G49Z25.
M1
T13(2mm-.0781 ENDMILL)
M6
G0G43H13Z15.
G10G90P13L12R.0394
G11
G0W-3.
G40G0X0Y0
M1
G0Z2.
M3S2888
G0X-.08Y.2
G0Z.1
G1Z-.04F20.
G42G1D13X.006F3.
G1X.006Y.124
G1X-.088Y.03
G1X-.088Y-.031
G1X-.008Y-.106
G1X0Y-.106
G1X0Y-.0264
G40G1X.0394Y-.04
G42G1D13Y0
G1X.28Y0
G1X.28Y-.026
G1X.293Y-.026
G1X.293Y-.145
G1X.476Y-.096
G1X.459Y0
G1X.372Y.089
G1X.407Y.124
G1X.12
G40G0Z1.
G0X-.08Y.2
G0Z.1
G1Z-.08F10.
G42G1D13X.006F3.
G1X.006Y.124
G1X-.088Y.03
G1X-.088Y-.031
G1X-.008Y-.106
G1X0Y-.106
G1X0Y-.0264
G40G1X.0394Y-.04
G42G1D13Y0
G1X.28Y0
G1X.28Y-.026
G1X.293Y-.026
G1X.293Y-.145
G1X.476Y-.096
G1X.459Y0
G1X.372Y.089
G1X.407Y.124
G1X.12
G40G0Z1.
G0X-.08Y.2
G0Z.1
G1Z-.12F20.
G42G1D13X.006F3.
G1X.006Y.124
G1X-.088Y.03
G1X-.088Y-.031
G1X-.008Y-.106
G1X0Y-.106
G1X0Y-.0264
G40G1X.0394Y-.04
G42G1D13Y0
G1X.28Y0
G1X.28Y-.026
G1X.293Y-.026
G1X.293Y-.145
G1X.476Y-.096
G1X.459Y0
G1X.372Y.089
G1X.407Y.124
G1X.12
G40G0Z1.
G0Z4.M19
G0G49Z25.
M1
M30
%


X0 is the vertical portion of the hook. Y0 is the lower horizontal portion of the arm.

[Tzed250]

I have decided to offer a few of these for sale. The thread can be found here:

http://www.targettalk.org/viewtopic.php?f=7&t=51829