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my first bb gun

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
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my first bb gun

Unread postAuthor: chosen_way » Sun Jul 30, 2006 1:33 am

i just started to make my first bb gun, I am basing it off the FAP MK1 (http://www.freewebs.com/jalord/fapmk1.htm) except i am taking the part on top for the acumulated fills off. i just cut alot of perspex and glued it together to get the thickness, it will be 1 inch high 4 inches long and 1 inch wide, and the air supply will be a propane bottle i would use Co2 but i cant get it cheaply, i am looking for an alternative method instead of propane. With any luck i will have it finished by early next week. And i dont know how to find out the FPS so if any could help me there i would be very appreciative. i will post pics as soon as it is finished.

Cheers Chosen Way.
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Unread postAuthor: singularity » Sun Jul 30, 2006 3:01 am

<a href="http://www.seattleairsoft.com/modules/news/article.php?storyid=15&page=0">here </a>an article on finding fps, but that is not th most accurate way becuase it slows down the bb. i saw a simple optical fps detector a little while ago but i dont have the link.

ps - you need to learn how to resize the images on your website, specificaly the prototypes page instaed of img src="somefile.jpg" use img src="somefile.jpg" hight=600 width=800
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be sure to check out my <a href="http://www.spudfiles.com/forums/ak-style-airsoft-vortex-gun-t10959.html">AK Styled Vortex Gun</a> and my <a href="http://www.spudfiles.com/forums/at-4-t9627.html">AT-4 Rocket</a>

upcoming projects... finalized clip fed BBMG and ball point pen sniper
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Unread postAuthor: chosen_way » Sun Jul 30, 2006 3:08 am

that isnt my website i found it on this site, there was a post in theories once. and thanks for the site for fps. i tried to drill the perspex but my pissy little drill wasnt powerfull enough, i will try tomorow with the hammer drill hopefully that will work.
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Unread postAuthor: sum_kid » Mon Jul 31, 2006 1:04 am

you think it would work with a digital camera by figureing out how much frames per second it does. and then shoot through a paper and hit a can at like 30 feet or sumthin and then see how many frames it took?
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Unread postAuthor: carlbelcher » Mon Jul 31, 2006 1:30 am

If you use a video camera you could do that. Normal video is 24 frames per second or 1/24 of a second per frame.
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Unread postAuthor: chosen_way » Tue Aug 15, 2006 3:32 am

ok so everything was looking good for me for about a day, then i started to drill the piston body and it all fell apart in other words cracked :( , what else could i use? i was using plexiglass but it is way to expensive and i have to travel to far to get it, i was thinking PVC rod but i am not sure if i can get that at bunnings warehouse and or mitre 10 these are australian hardware stores people. any ideas? i could try metal but i dont have a very good drill press, or the ability to get a solid peice of metal and i have changed my idea abit and decided to go with this http://www.swanstrom.net/petes/shoot/autobb.htm which will be alot easier for me to drill and all but i still have the problem of plexiglass.
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Unread postAuthor: carlbelcher » Tue Aug 15, 2006 3:38 am

You might try ABS plastic it's much more durable then acrylic or PVC. I would also see if you can find polycarbonate it's like plexiglas (acrylic) but 10 times stronger and much less brittle.
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Unread postAuthor: chosen_way » Tue Aug 15, 2006 5:19 am

you can buy blocks of abs, i will get that if i can. would it be possible to melt abs down to form a block?
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how do i put a picture here? woo i brought a signature and have nothing fun in it :(
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Unread postAuthor: Shrimphead » Tue Aug 15, 2006 1:07 pm

Carl, I believe that it is actually 30 frames per second usually.
http://video101course.com/Camera/c_190.html
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Unread postAuthor: chosen_way » Fri Aug 18, 2006 6:16 am

ok i am going to give the plexiglass another shot i got some scraps from a teacher at school and he said just draw on it what shapes i want etc. and he will cut it out for me and help me glue it together and drill it because the have big drill presses and i mean big like massive like ones used to make freaking cars, school got em for cheap because they had broken down and they did a course on fixing them and students helped so we get to use them as often as we want, i am getting off topic. he said if the plexiglass doesnt work he will order a slab of pvc and get me to pay for the peice i need and then he will drill that out for me, i cant wait for school on monday now only 2 days :D .
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how do i put a picture here? woo i brought a signature and have nothing fun in it :(
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