GTA
All Springer/NP/PCP Air Gun Discussion General => Machine Shop Talk & AG Parts Machining => Topic started by: LeE on April 28, 2018, 04:11:22 AM
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(https://s26.postimg.cc/65wua249x/Main_Body_v4.jpg) (https://postimg.cc/image/65wua249x/)
I enjoy shooting my PP700 carbine but didn't having to dig into my pocket to find another pellet for the fallowing shot and have been looking for something that is small enough to side mount onto the breech and something that will pretect the skirts when I store it in my hiking pack. I designed this to hold 10 pellets and use velcro to attach and take off as needed which adds the convenience have using mulitple disspensers when on runs out. Next stage programing and then watch the chips fly!!
(https://s26.postimg.cc/pdk109dqt/20180428_222308.jpg) (https://postimg.cc/image/pdk109dqt/) (https://s26.postimg.cc/ri4e1cn39/20180428_223516.jpg) (https://postimg.cc/image/ri4e1cn39/) (https://s26.postimg.cc/n8znz6rjp/20180428_232623.jpg) (https://postimg.cc/image/n8znz6rjp/)
Here is the first opp for making the base. It integrates the drum for the dial indexer to interface with. The last opp is to face the back side off and break the edge. Tomorrow I will attack the dial indexer and test the parts. Then off to prep for anodizing. I think I am going to do a two tone in red and dark blue.
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Looks a lot like an old split shot dispenser I used to have. I don't think it was as compact though...Great idea!
pv
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Looks a lot like an old split shot dispenser I used to have. I don't think it was as compact though...Great idea!
pv
I saw one of those that was similar posted on another forum. It was a plastic one with a clear top (I don't know what they call it) I saw about a month ago that inspired the idea. Then I did so more digging and found the lead shed but they are no longer available and are larger than I wanted. The one I designed is 1.427 in diameter and is .630 in overall height so I can accommodate for different lengths, including polymags. I give credit to the original designers for the inspiration.
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Looks a lot like an old split shot dispenser I used to have. I don't think it was as compact though...Great idea!
pv
I saw one of those that was similar posted on another forum. It was a plastic one with a clear top (I don't know what they call it) I saw about a month ago that inspired the idea. Then I did so more digging and found the lead shed but they are no longer available and are larger than I wanted. The one I designed is 1.427 in diameter and is .630 in overall height so I can accommodate for different lengths, including polymags. I give credit to the original designers for the inspiration.
I have 4 of them, one in each cal 177 to 30, that I got from a guy on this site that makes them with his 3D printer. They may be bigger than yours but I love them. Of course they will not be as strong as yours if you are machining them from metal!
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Work kept me away but here is the final part of the project with a fresh anodized finish in red and dark blue that has a blued steel look.
The last past to machine was the indexing knob. Like the first part, I started with aluminum round stock and roughed the profile out.
(https://s26.postimg.cc/hlvyfyqnp/20180430_142845.jpg) (https://postimg.cc/image/hlvyfyqnp/)
The last part on the first opp was to complete the profile with a smaller tool that the previous cound not reach.
(https://s26.postimg.cc/ksqhzm5yt/20180430_145739.jpg) (https://postimg.cc/image/ksqhzm5yt/)
To complete the indexing knob, I needed a way to hold the part without investing too much time into specialized fixturing for single part. The usual course of action is to make softjaws to hold the part in the vice but there is an easier way that only takes a few minutes to do and will achieve the same results. I took advantage of the two bore holes for locating the part and clocking it in the exact position needed for engraving by making a fixture plate with two holes machined for dowel pins. I used a trick a learned a few years ago to hold the part to the fixture, super glue! A little heat with break the bond and acetone with dissolve the glue for easy clean up.
(https://s26.postimg.cc/93mibmrut/20180501_000120.jpg) (https://postimg.cc/image/93mibmrut/)
(https://s26.postimg.cc/5k0klt9ph/20180501_130151.jpg) (https://postimg.cc/image/5k0klt9ph/)
(https://s26.postimg.cc/czzu7lpp1/20180501_133437.jpg) (https://postimg.cc/image/czzu7lpp1/)
(https://s26.postimg.cc/hlvyg00yd/20180502_132657.jpg) (https://postimg.cc/image/hlvyg00yd/)
For size comparision, I placed a 8 shot Prod mag right next to the 10 shot holder.
(https://s26.postimg.cc/ksqhzlqj9/20180502_132609.jpg) (https://postimg.cc/image/ksqhzlqj9/)
(https://s26.postimg.cc/4hqe3alr9/20180502_132531.jpg) (https://postimg.cc/image/4hqe3alr9/)
A little strip of velcro and the pellet holder can be readliy placed and removed.
(https://s26.postimg.cc/yaxeby04l/20180502_155303.jpg) (https://postimg.cc/image/yaxeby04l/)
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Looks like a nifty project indeed. Thanks for sharing it with us!
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Very Nice! Very high quality! 8)
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Very nice. My Lead Shed has a tapped hole on the back, which allows mounting to a scope ring or some other mount. Might be a good alternative to Velcro.
JMJ
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Very nice. My Lead Shed has a tapped hole on the back, which allows mounting to a scope ring or some other mount. Might be a good alternative to Velcro.
JMJ
That can be done easily, thanks for the tip 8) I wanted something that can be mounted quickly and taken off without tools. The thinking behind that is having a few dispencers that can be swapped out when one goes dry for field use.
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Thank you for sharing this project.
Very nice work!
Did you Anodize it yourself?
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Thank you for sharing this project.
Very nice work!
Did you Anodize it yourself?
Thank you, I did do the anodizing. I have been very happy with the results I have been getting.
I am working on a slightly different version that is top loading and dispensing that holds a total of 12 for the same size in 22. I am thinking about posting this in the hobbist sellers gate if someone wanted one for themselves.
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Here is the Top Loading one I have in mind. This one has 2 tapped holes for mounting.
(https://s26.postimg.cc/t0f3yfi9x/Main_Body_v2.jpg) (https://postimg.cc/image/t0f3yfi9x/) (https://s26.postimg.cc/kux20awlx/Main_Body_v2_bac.png) (https://postimg.cc/image/kux20awlx/) (https://s26.postimg.cc/fw9jlqiid/Main_Body_v5.jpg) (https://postimg.cc/image/fw9jlqiid/)
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Vash..
I wonder if a guy with your knowledge and talent could turn out some mags for the Gamo Urban.
They retail for $50 and may or may not include free shipping.
Is this something that would you could do and save a guys some bucks?
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Vash..
I wonder if a guy with your knowledge and talent could turn out some mags for the Gamo Urban.
They retail for $50 and may or may not include free shipping.
Is this something that would you could do and save a guys some bucks?
It can be done and I have thought about it. If the volume is there and min 20 presale I would take it on. They would be in the low $30 range each.
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You can officially reduce that number to 18... I'm in for 2.
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I am working on a slightly different version that is top loading and dispensing that holds a total of 12 for the same size in 22. I am thinking about posting this in the hobbist sellers gate if someone wanted one for themselves.
This is awesome, Vash. Please do! That top loading version look great.
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You can officially reduce that number to 18... I'm in for 2.
I don't have an Urban but I almost like Bill so put me in for 2.
;D
Just something else I'll lose along the way!
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LOL....
I bet if we get the word out you'll meet that 20 order quota in no time.
Sorry to steal your thread on the dispenser... awesome work.
If you give me the go ahead, I'll start a thread and get the mag ball rolling.
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LOL....
I bet if we get the word out you'll meet that 20 order quota in no time.
Sorry to steal your thread on the dispenser... awesome work.
If you give me the go ahead, I'll start a thread and get the mag ball rolling.
Please, by all means. I will pm you the final details.
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I am working on a slightly different version that is top loading and dispensing that holds a total of 12 for the same size in 22. I am thinking about posting this in the hobbist sellers gate if someone wanted one for themselves.
This is awesome, Vash. Please do! That top loading version look great.
You got it ;D
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LOL....
I bet if we get the word out you'll meet that 20 order quota in no time.
Sorry to steal your thread on the dispenser... awesome work.
If you give me the go ahead, I'll start a thread and get the mag ball rolling.
Please, by all means. I will pm you the final details.
Cool. I'll probably try to trade the ones I buy to Bill for another sleeper collectable.
;D
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LOL....
I bet if we get the word out you'll meet that 20 order quota in no time.
Sorry to steal your thread on the dispenser... awesome work.
If you give me the go ahead, I'll start a thread and get the mag ball rolling.
Please, by all means. I will pm you the final details.
Cool. I'll probably try to trade the ones I buy to Bill for another sleeper collectable.
;D
Or you could buy an Urban and forget where you put it.. :P
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Good stuff L.
I'll get a thread started today. I got a feeling this well go well.
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Here is the Top Loading one I have in mind. This one has 2 tapped holes for mounting.
(https://s26.postimg.cc/t0f3yfi9x/Main_Body_v2.jpg) (https://postimg.cc/image/t0f3yfi9x/) (https://s26.postimg.cc/kux20awlx/Main_Body_v2_bac.png) (https://postimg.cc/image/kux20awlx/) (https://s26.postimg.cc/fw9jlqiid/Main_Body_v5.jpg) (https://postimg.cc/image/fw9jlqiid/)
Here is the buttom half fresh off the mill.
(https://s26.postimg.cc/4ads3eax1/20180506_205701.jpg) (https://postimg.cc/image/4ads3eax1/)
And now here is the new top on the first Opp. One more opperation and it's ready to prep for anodizing, my favorite part.
(https://s26.postimg.cc/gm3cv7r1h/20180507_184516_-_Copy.jpg) (https://postimg.cc/image/gm3cv7r1h/)
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Here is the Top Loading one I have in mind. This one has 2 tapped holes for mounting.
(https://s26.postimg.cc/t0f3yfi9x/Main_Body_v2.jpg) (https://postimg.cc/image/t0f3yfi9x/) (https://s26.postimg.cc/kux20awlx/Main_Body_v2_bac.png) (https://postimg.cc/image/kux20awlx/) (https://s26.postimg.cc/fw9jlqiid/Main_Body_v5.jpg) (https://postimg.cc/image/fw9jlqiid/)
Here is the buttom half fresh off the mill.
(https://s26.postimg.cc/4ads3eax1/20180506_205701.jpg) (https://postimg.cc/image/4ads3eax1/)
Awesome! Wish I had your skills!
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Here is the Top Loading one I have in mind. This one has 2 tapped holes for mounting.
(https://s26.postimg.cc/t0f3yfi9x/Main_Body_v2.jpg) (https://postimg.cc/image/t0f3yfi9x/) (https://s26.postimg.cc/kux20awlx/Main_Body_v2_bac.png) (https://postimg.cc/image/kux20awlx/) (https://s26.postimg.cc/fw9jlqiid/Main_Body_v5.jpg) (https://postimg.cc/image/fw9jlqiid/)
Here is the buttom half fresh off the mill.
(https://s26.postimg.cc/4ads3eax1/20180506_205701.jpg) (https://postimg.cc/image/4ads3eax1/)
Awesome! Wish I had your skills!
Thank you but it often keeps me up late at night when I can't stop thinking about a design lol.
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Here is a quick fixture I did to hold the top half of the part for the last machining opp. Its made to fit the contour of the part snugly and a short pin to index the part in the correct position and like before, a little super glue to keep the part from flying out during machining. The neat thing about doing a setup up like this is the part is already located on the control which speeds up setup time and an accurate part.
(https://s26.postimg.cc/4s9w9r8d1/20180507_223609.jpg) (https://postimg.cc/image/4s9w9r8d1/)
A little measuring to ensure the depth is correct. I will use this value later for comping tool lengths later.
(https://s26.postimg.cc/epkx2t891/20180507_224000.jpg) (https://postimg.cc/image/epkx2t891/)
Perfecto! The fixture holds onto the part just snug enough that there is no play when I twist it back and forth but just loose enough that all it takes is a light tap from the dead blow hammer to seat the part to the bottom.
(https://s26.postimg.cc/rtqhfhsl1/20180507_223219.jpg) (https://postimg.cc/image/rtqhfhsl1/)
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(https://s26.postimg.cc/unz5992j9/20180508_095133.jpg) (https://postimg.cc/image/unz5992j9/)
(https://s26.postimg.cc/3q587ia6d/20180508_111119.jpg) (https://postimg.cc/image/3q587ia6d/)
Here is the back side of the top machining completed. The fixture worked perfectly in keeping both top and bottom features aligned.
I then soaked the part and fixture in acetone and a light tap with a derin punch from the underside was all it took to set the part free.
(https://s26.postimg.cc/sjes868md/20180508_123411.jpg) (https://postimg.cc/image/sjes868md/)
(Test fitting the parts before anodizing)
(https://s26.postimg.cc/ykch59idx/201805028_095133.jpg) (https://postimg.cc/image/ykch59idx/)
(https://s26.postimg.cc/9r2x4ljxx/20180509_125119.jpg) (https://postimg.cc/image/9r2x4ljxx/)
I chose to dye the top black and the bottom red. The changes I made to this version over the first is that it now holds 12 vs 10 in the same size footprint. I was able to do this by eliminating the dead spot and making it load and feed from the top instead of the side. The other change this has is two tapped #8 holes for mounting such as a wrist straps, scope tube adapter or to the sight dovetail rail.
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Top loading design can work quite well. I have one in a scope wheel.
http://i1218.photobucket.com/albums/dd418/JMJinNC/Air%20Power/FFA142B2-1685-4D59-A4F6-C38B812B22F1_zpsrwyedbww.jpg (http://i1218.photobucket.com/albums/dd418/JMJinNC/Air%20Power/FFA142B2-1685-4D59-A4F6-C38B812B22F1_zpsrwyedbww.jpg)
JMJ
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Top loading design can work quite well. I have one in a scope wheel.
http://i1218.photobucket.com/albums/dd418/JMJinNC/Air%20Power/FFA142B2-1685-4D59-A4F6-C38B812B22F1_zpsrwyedbww.jpg (http://i1218.photobucket.com/albums/dd418/JMJinNC/Air%20Power/FFA142B2-1685-4D59-A4F6-C38B812B22F1_zpsrwyedbww.jpg)
JMJ
That is a neat idea. I am liking the top loader more than the side loader. I find it easier to opperate with one hand and it holds more pellets for the same size.
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THAT is some sweet machine work! Great job! ;D
Cheers
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THAT is some sweet machine work! Great job! ;D
Cheers
Thank you, I appreciate the feedback.