Kimber CDP II Trigger Job

GorillaGunworks · August 21, 2018, 09:06 AM

Hey Guys so i just Uploaded Part 4 of the Kimber CDP II Project where i do a Trigger Job, Hope you guys enjoy this one, and please feel free to comment on the video, Like and Subscribe to my channel. i really appreciate all the support from this Community.
https://www.youtube.com/watch?v=8oAHmySVr9E

log man · August 22, 2018, 01:56 PM

Watched with interest. Surprised you aren't using a jig and explaining the correct sear primary angle. Only the hammer hook tips actually make contact with the sear primary, so polishing the flat before the hook face doesn't really do anything. Did you adjust the sear spring leafs and what was the criteria for doing so?

LOG

**4V50 Gary** · August 22, 2018, 11:28 PM

You don't need a jig to get the sear angle right. Use a vise, a shim and a stone.

log man · August 23, 2018, 09:39 AM

So how does that work?

David R · August 23, 2018, 10:23 AM

Shim and stone to set the width of the contact area?

David

Sent from my Pixel 2 using Tapatalk

log man · August 23, 2018, 10:55 AM

Using a shim .020"-.120" on the stone is common for the secondary angle, but how about the primary?

LOG

**4V50 Gary** · August 24, 2018, 09:41 AM

Set the sear in the vise, leaving it slightly above the shim. The sear should be at the angle you want to stone it. Then lay the stone on the shim and push. When it's done at one angle, then reset the sear for the other angle with the shim again in place to limit how much you stone.

log man · August 24, 2018, 10:45 AM

With the sear buried in the vise how do you check for the correct angle, and what is the correct angle?

LOG

log man · August 25, 2018, 10:28 AM

Okay, that is the question, knowing the correct sear primary angle helps to actually stone on that angle.

http://gunsmithinfo.com/images/Drawings/1911%20Sear.png

In some fixtures this is hard to check in set up, but can be determined. Here is a Power custom jig which makes checking during set up direct.

LOG

August 21, 2018, 09:06 AM	#1
GorillaGunworks Senior Member Join Date: August 5, 2013 Posts: 116	Kimber CDP II Trigger Job Hey Guys so i just Uploaded Part 4 of the Kimber CDP II Project where i do a Trigger Job, Hope you guys enjoy this one, and please feel free to comment on the video, Like and Subscribe to my channel. i really appreciate all the support from this Community. https://www.youtube.com/watch?v=8oAHmySVr9E __________________ "No free man shall ever be debarred the use of arms." - Thomas Jefferson, Virginia Constitution, Draft 1, 1776 https://www.youtube.com/channel/UC1b...RUE9AMVlI88MrQ

August 22, 2018, 11:28 PM	#3
4V50 Gary Staff Join Date: November 2, 1998 Location: Colorado Posts: 21,831	You don't need a jig to get the sear angle right. Use a vise, a shim and a stone. __________________ Vigilantibus et non dormientibus jura subveniunt. *Molon Labe!*

August 24, 2018, 09:41 AM	#7
4V50 Gary Staff Join Date: November 2, 1998 Location: Colorado Posts: 21,831	Set the sear in the vise, leaving it slightly above the shim. The sear should be at the angle you want to stone it. Then lay the stone on the shim and push. When it's done at one angle, then reset the sear for the other angle with the shim again in place to limit how much you stone. __________________ Vigilantibus et non dormientibus jura subveniunt. *Molon Labe!*

August 22, 2018, 01:56 PM	#2
log man Junior Member Join Date: February 24, 2007 Posts: 8	Watched with interest. Surprised you aren't using a jig and explaining the correct sear primary angle. Only the hammer hook tips actually make contact with the sear primary, so polishing the flat before the hook face doesn't really do anything. Did you adjust the sear spring leafs and what was the criteria for doing so? LOG

August 23, 2018, 09:39 AM	#4
log man Junior Member Join Date: February 24, 2007 Posts: 8	So how does that work?

August 23, 2018, 10:23 AM	#5
David R Senior Member Join Date: January 2, 2015 Location: The swamps of WNY Posts: 753	Shim and stone to set the width of the contact area? David Sent from my Pixel 2 using Tapatalk

August 23, 2018, 10:55 AM	#6
log man Junior Member Join Date: February 24, 2007 Posts: 8	Using a shim .020"-.120" on the stone is common for the secondary angle, but how about the primary? LOG

August 24, 2018, 10:45 AM	#8
log man Junior Member Join Date: February 24, 2007 Posts: 8	With the sear buried in the vise how do you check for the correct angle, and what is the correct angle? LOG

August 25, 2018, 10:28 AM	#9
log man Junior Member Join Date: February 24, 2007 Posts: 8	Okay, that is the question, knowing the correct sear primary angle helps to actually stone on that angle. http://gunsmithinfo.com/images/Drawings/1911%20Sear.png In some fixtures this is hard to check in set up, but can be determined. Here is a Power custom jig which makes checking during set up direct. LOG