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Automobilie

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Posts posted by Automobilie


  1. Since I usually have MOSFETs in my guns I've been wanting to try different trigger mechanisms. Having a bunch of tactile switches from an old VCR, and that they fit into the contact housing easily I decided to solder them in and tweak the trigger engagement to get a much shorter trigger pull while minimizing double firing on semi.

    Here's the album http://imgur.com/a/AIMrZ

    Basically, the trigger on my Spectre was soggy and would frequently double fire on semi. At first, widening the contacts worked, but the trigger felt worse. I've always wanted to try using a micro-switch or tactile switch in place of springy contact tabs. Since the RDP has a MOSFET it could the current and a light duty switch could be adjusted and used. By using a switch and adjusting contact points you can get a trigger that engages quickly and sharply. A micro switch should have better lifespan, so I'm curious how well this switch will hold up in the long run.

    The double firing is still there, but much much better. The slop in the gearbox shell and trolley are a bit too much to adjust it out all the way. I have thought about moving wires around and adding a set screw so that the trigger contacts could be adjusted right to the point it stops double firing.

    Here's a video of the result https://www.youtube.com/watch?v=uNYvoOLbNfA&feature=youtu.be


  2. If you're using acrylic clear coat, you need to wait about a week or two after painting your base coats, otherwise the solvents will either attack the cc or the cc will trap the solvents in the base. Making it take much longer to cure. Spray paints can dry within a day or two, but they aren't really 'cured' until a few weeks go by. If you can still smell paint a few inches away, it's not fully cured.


  3. Don't need a clear hop up for mine. You drill two 1/8" holes in the chamber ( where the nozzle fits into and glue the led harness into place. I shortened them so they shouldn't get in the way of the nozzle. Works very well on semi like this.

     

    The resistor-battery method works, but you have to deal with your battery draining flat and being able to get it in and out. It also won't run the led's at full power as the battery voltage drops. Mine is a current source that will rum the leds at full down to about 7v, yhen taper down. The capacitor helps compebsate for the motor drawing down your main battery.


  4. Hi guys. A few years ago I realized there were few to no options for internal tracer units on airsoft guns. The only option was the Madbull setups, which required an M4 hop unit. So I decided on developing a circuit for a hop up tracer unit that could run right off the motor in your gun so as to avoid needing switches and extra batteries. I eventually published a guide for a basic unit. I used that circuit for quite awhile, but didn't innovate on it much aside from some reliability tweaks.


    EqmPK60.jpg

     

    The last couple years I've been dealing with health problems which gave me a lot of time to work on the design. Looking around, no one really made HUTU's still and to get a decent tracer unit you needed to fork out $100 for a suppressor unit. I was studying Electrical Engineering and wanted to try SMD building, so I came up with a design to use a more professional PCB and have been developing ways to make a drop in kit that is much more affordable and easy to install.

     

    This is an install video I did not too long ago of putting on in an AK. Super simple to put in.

    https://www.youtube.com/watch?v=DNAFNMiUlwQ

     

     

    ZRmWea4.jpg

     

    This is what I came up with. I'm thinking of calling them 'Beam' tracer units. It's a kit that splices right on to your motor leads, routes the unit to another part of the gun, and then connects two UV LED's to you hop up unit. They work very nicely and, so far, the PCB designs hold up, but are sensitive to being wired backwards.

     

     

    I've got 20 of them right now and am thinking about calling a few CQB fields to see if they're interested in purchasing a few to either sell or put in rental guns.

     

    My question to you guys is are these something that there is a market for? What is a fair price for one of these and, considering I've never sold anything on a larger scale , what are some pitfalls I need to watch out for?

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