Author Topic: Condor type build (Read 13082 times))

sb327 · « **Reply #40 on:** April 04, 2021, 12:51:56 PM »

If nothing else, it’s interesting and has been a fun project. I think it will be fine for hunting. I replaced the little 220cc tank with a 450 (I think, have to check for sure). I shot 5 shots to zero the scope and these were the velocities. (Converted from meters)

994 (possible stiction in bv, not bad though)
1003
1000
997
987

I started at just a touch above 3000psi

I measured cocking force with my fish scale, it’s about 16lbs.

Dave

rsterne · « **Reply #41 on:** April 04, 2021, 07:50:18 PM »

Great job!....

Bob

sb327 · « **Reply #42 on:** April 04, 2021, 08:30:21 PM »

Thanks Bob. The efficiency isn’t too bad either. Loyds calculator shows it as a 1.2 with the data from the string I shot with the little bottle on.

Dave

MJP · « **Reply #43 on:** May 03, 2021, 04:47:45 AM »

Oh one more interesting thread I have missed,
Good job!

Marko

sb327 · « **Reply #44 on:** May 03, 2021, 10:53:42 AM »

I have more to do on this. I haven’t even stretched its legs with this balance valve.

I know at some point the barrel will get cut down some and I have an idea with the valve I want to try. Time is my only limitation. Seems everything else gets my time and I don’t have much left over, lol.

Thanks for the reply.

Dave

MJP · « **Reply #45 on:** May 03, 2021, 11:34:49 AM »

I know the feeling, everyone wants a minute of your time and there are only so much hours to spare.

Not even close to enough hours in a day to do everything I would like to do. And there are the things I need to do and dont even like.

Marko

sb327 · « **Reply #46 on:** June 23, 2021, 10:23:33 AM »

I’m still messing with this one as time permits. I’ve changed the barrel to a Douglas 27” and upped my starting pressure to 3600 psi. (I’ve tested to 3750 and that lightweight spring still gives a regular shot cycle).

My velocities are just under 1000fps starting and accuracy is more than acceptable for hunting.

I want to try a little bit longer slug. Right now I’m shooting a 75gr. BBT from a mold I made with a little cnc table I made for my mini lathe.

Dave

MJP · « **Reply #47 on:** June 23, 2021, 01:53:32 PM »

Good looking bullet!
Would be interesting to see how you made it.
I just love diy cnc stuff, and its interesting to see other machines.

Marko

sb327 · « **Reply #48 on:** June 23, 2021, 02:59:22 PM »

I’ll try to get some pics of it. Super simple and cheap. I am using grbl and no spindle encoder so no threading capability. It’s really just for molds. It’s just x and z built on top of a different saddle, that way I can get it out of the way for manual work.

Dave

sb327 · « **Reply #49 on:** June 23, 2021, 08:39:01 PM »

Here it is. Just kinda pieced everything together on the cheap. Mostly eBay stuff. Steppers with leadscrews so not really robust.

The controller is for one of the cheap cnc router. (3018). Cheap and easy to use. Arduino based grbl. I run it via usb from UGCS on my computer.

I use freecad to model and fusion for cam. I’m still learning the cam stuff. And how to manipulate my gcode for clearances and such.

I tried homemade hss boring tools but they flex too much. I ended up getting solid carbide and reshaping to what I wanted.

Dave

Rob M · « **Reply #50 on:** June 24, 2021, 12:15:48 AM »

nice.. freecad has cam also , granted i never figured it out and stuck to fusion.. Universal gcode sender is really handy.

MJP · « **Reply #51 on:** June 24, 2021, 02:49:54 AM »

That is just genius using a second slide with cnc in it.
What is that boring bar, any link for it? Looks some like sandvik mini but not sure?

Marko

sb327 · « **Reply #52 on:** June 24, 2021, 06:05:26 AM »

It’s a cheap kyocera https://shop.kyoceraprecisiontools.com/products/8513232

I have a micro100 brand that I got before finding these cheap ones. It was around $25.00. Can’t figure out the price difference…

Dave

MJP · « **Reply #53 on:** June 24, 2021, 09:39:18 AM »

Thanks David,
Need to check it out.

Marko

sb327 · « **Reply #54 on:** June 24, 2021, 10:24:19 AM »

I bought the Kyocera from eBay. I just went to the link I posted and apparently it is all just liquidation stuff. Hmm, I better get what I need while they are cheap.

That explains the price difference.

Dave

Ascot500 · « **Reply #55 on:** February 07, 2022, 02:57:46 PM »

I am starting something similar.
Does anyone know what the threads are on an AirForce Edge tank?

sb327 · « **Reply #56 on:** February 07, 2022, 03:19:07 PM »

I’m not sure on the Edge, hopefully someone will chime in with a definite answer.

Dave

MJP · « **Reply #57 on:** February 08, 2022, 04:58:27 AM »

Should the same on all AF bottles m18x1.5

Marko

Ascot500 · « **Reply #58 on:** February 08, 2022, 09:07:59 AM »

PCPMart has an adapter for Airforce tanks and shows that it has 7/8-14 UNF threads?

rsterne · « **Reply #59 on:** February 08, 2022, 12:57:55 PM »

I'm pretty sure that 7/8"-14 is the threads that insert into the back of the Air Force receiver (the front threads on the valve), not the bottle threads.... All HPA bottle threads I have seen are either 18mm x 1.5mm or 5/8"-18 NF.... The Talon/Escape uses the smaller (5/8" - paintball) threads, the Condor and Texan use the larger (metric) threads on the bottle.... The Edge, I don't know.... It's tank is just a tube, not a bottle....

Bob

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Condor type build

Author Topic: Condor type build (Read 13082 times))