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Old 03-22-2012, 12:33 AM #1
Fedo
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Autococker Feedneck Mod: A How To and What to Avoid Thread.

Hello citizens of Voided Warranty, I come to you today with a "How to..." and "What to avoid.." Guide for modding your autococker with a clamping feedneck.

I have many pictures to show you how I did it, these are pictures from my first attempt at this modification which went over very well with minor issues.

I will also include inside on how to avoid the small mishaps I had.

Some back knowledge, I was modding a stock Trilogy body with the bulky bottle neck.

(I will post all pictures in order in a second section so the steps do not look cluttered!)

Tools and equipment needed:

Hack Saw
Bench Vice (or a drunk body to hold the gun... I suggest not)
Towel
Metal File
Compressed Air or Air Compressor.
Planet Eclipse Ego/Etek clamping feedneck
(the model with a duel clamp, top and bottom)


STEP 1:
Strip down your marker. Remove everything you can, springs, detents, pump air, grips, ASA, Reg and anything else. (You can take the body off the trigger frame if you want... but I suggest not to so you have something to vice. **)

STEP 2:
Stuff the barrel chamber with shop towels or heavy duty paper towels. this it to prevent any shavings from entering the firing chamber and will make clean up much easier later.

STEP 3:
Use a bit of wire or a paper clip to bend around the feedneck. Mark the outside of the feedneck to where the fatter lip begins. (See pictures)

STEP 4:
Vice the gun so the feedneck is horizontal. Earlier I suggested keeping the trigger frame on, here is why. You will have an easier time vicing teh gun down by wrapping a towel around your trigger frame thickly and vicing the gun by the trigger frame. Be sure the towel covers all exposed metal very well!

STEP 5:
Hack saw away on the marking point you made with the wire. This is to rid yourself of the extra metal. Once this is done file and round out the inside and outside metal.

STEP 6:
Measure the Ego Feedneck and mark the metal. Be sure to mark the newly exposed shiny metal heavily and equally from all sides. Center it. (See Picture)

STEP 7: Tape around the feedneck and down the body. This is to prevent any damage while doing the next part. Cut directly down to the body at four spots, making sure the cut only barely touches the tip of the line. Be mindful of where your stop is for the neck and how straight your cut is. I suggest cutting a notch underneath in advance. Do this 4 times to make a square like shape.

STEP 8:
Do this again to make a octogon. Again make notch cuts and be aware of your measure line.

STEP 9: File away the corners to round out the meal. Now is time for a dry fit. File until you can get the feedneck on SNUGGLY!

STEP 10: More filing, use a dry file to slowly level and file down the feedneck so the Ego Clamping Neck is flat with the body. Take it slow.

STEP 11: Secure the feedneck, check to make sure the Feedneck is not being hindered or held up by any imperfections from the saw, if it is file those down.

STEP 12: Secure the new feedneck and marvel!

Any questions, feel free to post down below. My pictures show that I did make a few mistakes here and there, but this was my first shot at this mod. I have gotten better since

Let me know how it goes for you.
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Old 03-22-2012, 12:46 AM #2
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Talking



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(used sharpie, then went over it in whiteout after... black sharpie... black body. I wasn't thinking. I suggest silver or metallic.)

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(It is obvious that Geometry was not my best subject... not a problem though.)

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(Check to see how much more you can shave off to bring the neck down. This was a dry run)

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(Due to some sloppy sawing, I filed down the front profile to make it clearer. I will need to re-anodize this done once all my mods are complete now >.<)

~~



Finished!
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Old 03-22-2012, 07:58 AM #3
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Nice work!

I got worried around picture 12 haha
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Old 03-22-2012, 08:28 AM #4
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sniff..... snifff.....

i smell a sticky for the people
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Old 03-22-2012, 12:10 PM #5
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Nice good work.
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Old 03-22-2012, 12:57 PM #6
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mmmh that looks rough haha. I guess it works tho. I have that exact same welder btw!
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Old 03-22-2012, 01:27 PM #7
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Ya it was a bit rough since this was my first attempt. I did a couple others for buddies, I will try to get pictures to post. They look much nice. The mistakes you see are because of lack of forethought, but as they say hindsight is 20/20.

I wanted to post my first attempt photos to give visual evidence of what to avoid, it does not look bad at all in person and I had planned to reanondize the gun in the future anyways.

Thanks for all the good words guys, I am looking into doing a DIY halfblock soon for it, but I got a lot more research to do before attempting. Let me know if I can help anyone else out on the feedneck.
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Old 03-22-2012, 06:50 PM #8
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I did this mod to a few older prostocks almost the same way you did. I have one little piece of advice to those that are thinking of doing it... Do not use a dremel. The first one I did I used a dremel to cut and then to shape the feed tube. The body got nicked up bad due to the cutting edge jumping around. Use a hacksaw and some files and take it slow and and there will not be a need to re-anno. Just my two cents.
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Old 03-22-2012, 06:55 PM #9
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Quote:
Originally Posted by wdkrobsmith View Post
I did this mod to a few older prostocks almost the same way you did. I have one little piece of advice to those that are thinking of doing it... Do not use a dremel. The first one I did I used a dremel to cut and then to shape the feed tube. The body got nicked up bad due to the cutting edge jumping around. Use a hacksaw and some files and take it slow and and there will not be a need to re-anno. Just my two cents.
Yes! My flaws are because I got hasty.
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Old 03-23-2012, 12:18 AM #10
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Great guide!
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Old 03-23-2012, 10:33 AM #11
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Great guide!

Thanks. to the couple guys that PM'd me, I don't think I will be doing orders for awhile. I want to get comfortable around the shop first and I am going to look for a couple more cheap bodies to test on. What I do with the test bodies has yet to be determined.

I suggest trying yourself though, it isn't to hard.
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Old 03-23-2012, 12:37 PM #12
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looks nice, just need to get a file and it will clean nicely. triolgy are just really hard to mod in general
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Old 03-23-2012, 04:02 PM #13
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came out nice
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Old 03-23-2012, 06:28 PM #14
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how long did that take you.
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Old 03-23-2012, 09:04 PM #15
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Quote:
Originally Posted by hmcl281 View Post
looks nice, just need to get a file and it will clean nicely. triolgy are just really hard to mod in general
Ya they are made of some strong metal. after a little filing it will come down pretty nicely.
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came out nice
Thanks

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how long did that take you.
3 hours or so. Not to long really. Most the the time is spent filing.
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Old 03-27-2012, 03:45 AM #16
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great mod

sticky worthy thread
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Old 05-04-2012, 11:26 PM #17
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I got another trilogy coming around to do. I am going to clean up the orginal mod and post a picture when I can. Finals week is here, I will have a bit of time this summer.
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Old 12-24-2012, 07:15 AM #18
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Good day!
I have a WGP prostock 03 body and need a clamping feedneck.
BEFORE

AFTER




What need:
1) Body
2) Vices
3) Hand Tap size 13/16-32

What I do:
1) I take WGP body
2) Cut off the stock feed neck
3) created a thread
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Old 01-02-2013, 02:28 PM #19
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Very cool

I've ego necked a few trillys...
I cut the feedneck off, milled it flat, used a 7/8 endmill to bore down the feedneck hole, then made up a 7/8 OD tube to press in, worked great!

I've also tapped trillys for threaded feednecks, dame idea as above, but use a boring head to bore the neck to size, then tap with a 7/8-20 ccm threaded tap

both work great and are a huge improvemnt from the stock feedneck!
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