LDC for myself.
I am limited as to the size of my lathe but have a Bridgeport refurbished and languishing in my basement. Any photos of generic insides of an LDC? I don’t wish to steal anything from someone making a living selling shrouds/LDCs. But I need a few more ideas of successful design and materials. I DON’T want to sell anything. Just building for myself.
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I’m fine at 62 myself… as long as I can get a leg to touch the floor in the morning. After that I’m OK. Still 31 in my heart. Yeah, half my real age. Don’t know what it will be like in ten years. May not be able to hear the airgun without the LDC! THAT would save a lot of money.
Eldy, Bluesfrog and Mike. Thanks!
The picture that I posted isn’t one of my LDCs. I didn’t take any pics of my slapped together creations OR, if I did take some pics: I can’t find them.
A couple of months ago: I had to upgrade from XP to Windows7. I REALLY, REALLY,REALLY HATE Windows7!!!!!!!!!!!!!!!!
I did make my creations based on the pic that I posted.
Eldy; IIRC, I got the plastic here:
http://www.mcmaster.com/#standard-plastic-rods/=stdhil
I used the wear resistant nylon (8538K23) that goes for $3.73 per foot. MCM says that the 1″ OD plastic rod measures 1.005″ OD.
Again, IIRC, I bought the Alum air tube from onlinemetals. I found an Alum tube that had a OD was a tight fit into the Condor frame and the 1.005″ OD plastic rod was a was a hard slip fit into the Alum tube. I didn’t have to spin the plastic LDC insert down in a lathe but: I did have to drill the bore while the plastic part was chucked up in the lathe.
I chucked the bore drilled plastic part in a mill at work and I then cross drilled the holes. I also cross drilled a couple of copies for friends using my home drill press and vice. It is not rocket science drilling the cross holes. If it was rocket science: I wouldn’t be able to do it!
Without a lathe, getting the LDC bore concentric with the barrel is the only problem. The LDC bore has to be inline with the barrel, if it isn’t, you will get clipping.
If you guys don’t have access to a lathe to drill the LDC bore, you are just pissing in the wind if you want to go this route. I made my plastic LDC insert around 6″ long. It worked very well.
I made my Condor LDC over 5 years ago. I can’t come close to remembering the ID of the Air Force front housing. At 62 years old and drinking 5-6 beers and a few shots every night: I am doing good to wake up the next day and remembering anything.
HELL: At 62; I am doing good to just wake up the next day! 😯
Those look really nice Tedd! 😀
Try going all the way back to the first post in the LDC or moderator section, and scan for pix’s. There are a lot of them there! 😉 and quite a bit written on what worked and what didn’t!
Knife
Thanks knife and Old Goat. I will go back farther than I have in the past. Any other photos of systems that worked well?
If your LDC is going on a short barrel Air Force gun, you can easily make one of these out of any solid hard plastic rod and a piece of alum tube to cover the end that sticks out of the front of the Air Force frame.
I made a couple of similar LDCs for my 22 cal Talon that had a 24 inch barrel. I don’t have any pics of the plastic LDC that I made; sorry. What I came up with looked like the small end of the of the bottom plastic LDC in this picture.
I found some thin walled alum tube from either McMaster Carr or Onlinemetals that would just fit into the inside of the Air Force frame and I then sized the LDC to be a very tight press fit into the alum tube. IIRC, the barrel end of the plastic LDC started around 1 inch in front of the end of the barrel and the plastic LDC insert was 6 inches long. My simple LDC really quieted the Condor down!
I also drilled some holes in the front barrel bushing. Doing that allows the air to go back into the frame and then thru the holes in the front bushing. Doing that will quiet the gun down even more as the front bushing will act as another LDC baffle. Drilling 4 small holes, on the underside of the frame, just in front of the rear barrel bushing will allow some of the air to escape there and doing that will quiet the gun down even more.
If your gun has a 24 inch barrel, you want to drill at least 1 more hole in the end of the Air Force frame and use at least 2 set screws to hold the alum tube in the frame. To hold the LDC into the alum tube, I drilled and tapped 2 set screws thru the end of the air tube and into the muzzle end of the LDC.
I have since sold my gun. I made the same setup for a buddy of mine, he has had it for a couple of years, hasn’t had any problems with it and loves it. We get together and shoot as often as we can and, while his Condor isn’t as quiet as my Matadors, there is a night and day difference between his Condor and another buddies stock Condor.
If you wanted more quiet, just make the plastic LDC part 8 inches long or even longer. If you have a 22, make the bore hole .250″. If you have a 25 cal, go with .270″.
I would go back to the very first of this section, and read forward. Lots of different LDC designs and builds here in the old post!
Knife
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OG, thanks for the pictures. I went back to the first threads and went forward. Many of the pictures are not up any longer. But some are there. I have Delrin to find a way to bore in my son’s mini-lathe. We’ll see how that goes. Will put up a picture when it happens. May not be soon. Hope I didn’t kill this thread by my OT old guy jokes. THANKS for all the info. It looks like I won’t be visited by the gubmint if I stay with non-threaded inserts of Delrin, fastened by grub screws. God Bless Y’all.