31 replies to this topic

[3DBBQ]

2010 ~ 2011 7 / 27 BY: 3DBBQ
TMG (The Mad Ghost) through the test of battle, not out, is everyone's favorite gun, the teaching of writing the article here.





JSPB-TMG X 3

1. 3Pumps fire 1 mega dart, total of six rounds
2. distance of about 20 meters
3. ARB mechanisms, high accuracy
4 small, one-handed shooting
5 easy made, low price of materials
6 durable
7 three-point grip, stable shooting

tool & Material

Tools:
1 glue
2 pipe cutter
3 marker
4 diagonal pliers
5 needle nose pliers
6 Drill


Material:

--------Valve ------------

1 inch check valve
1 / 2 inch Check Valve


---- Link with PVC ----------


1 inch pipe
1 / 2 inch pipe
1 / 2 inch electric tube (thin tube)
3 / 4 inch electric tube (thin tube)


------ Original -------------

1 / 2 inch Tee x1
1 / 2 inch L x3
1X1 / 2 inch OS x1
1 inch l x2

------ Parts-------------

PU High-pressure plastic hose (large)6.5*10
PU High-pressure plastic hose (small)5*8
Faucet seal skin
8cm wood screws
Instant glue
Fishing line (thin wiring)
1" Bike pump


-------------------safe first----------------------
start!






First, the pump valve removed, increasing the air.



Install the check valve, which is directional, do not install the wrong side.



complete





Prepare two L, take it together.




This is a tip, pipe a thin line above, it is the mold line, after the glue line can be used to align.







1 inch PVC pipe to put up, right, right to see, and mark



Then remove the PVC pipe, we need to be measured can only be installed 3 cm (measured results for each different brand)






Six centimeters of PVC cut this down now!









For the part of the check valve also requires cutting a section, let us use the marker tag.







Is about six centimeters.




cutting down ~





This special glue water stage when we first painted the right side, remember to ㄧ circle all painted to, if not applied uniformly, will lead to leakage, it is very serious.





We put a stick of glue squeezed side check valve.






glue it.






The L stick up.




Good to just cut PVC pipe glue.




Sticky good side, the other side of the stick.




Focus here, this time loaded up when another L must be aligned, we quickly find the line, this will make to the gun straight.



We use a PVC pipe to align and adjust, put something, if there are crooked off the gun will be very easy to find, and very easy to adjust.
(Note that the kill time soon, want to take a hard fall before the adjustment is completed, if the force has been adjusted with the violence will lead to loss of adhesive glue,)



Again cut a PVC, the glue stick.



After installing 1X1 / 2 OS Barrel after you're done!

Edited by 3DBBQ, 28 July 2011 - 08:01 PM.

[3DBBQ]

The next part of making the trigger, which is 1 / 2 inch L, we can see a mold line, it marks it.






Mold line in the center, we use a pen to continue.








Align the top of LOGO, and then draw a line.




We get the middle point.







Drill stage, we are prepared a little bit smaller
Let ㄧ a PVC pipe with a fixed L, keeping a safe distance from your hands.







45 degrees this time drilling down is okay.Because its surface is round, but hit just the foundation, we change a little bit to really big open hole.






This time to open the hole must be positive, to be straight, to 90 degrees, not twisted out








After the wood screw drill into it!






Very good!



Pick up 1 / 2 inch PVC pipe, mark it.





Cut, and come up with 1 / 2 check valve.





Open it.



It's part not to run away inside, we can see its structure, which uses a spring to push the plug (valve)
This way air can only be right to left, rather than be left to right.







Check valve directional thing, and this time do not stick wrong!




Adhesive OK

Edited by 3DBBQ, 27 July 2011 - 10:34 AM.

[3DBBQ]

The high-pressure air line out, and a small




Can be fixed with two sets of live



Length of the first test to see, a large tube that direction toward the trigger.




This orange tube length must be able to touch the plug (valve)



Alignment wood screws inserted into



Use needle nose pliers, rotate, hanging tight.






A little tight, you can use with a screwdriver or drill.




Complete figure, we can use pliers to fine-tune the length of the orange tube



Fitted plug (valve) and then press the trigger to see along the flow, and if not ring true to continue fine-tuning.



Good !



Trigger components complete!!




Let's fight to see!





OK, the next connection time to pay attention to whether there is right now, so the other end of the first "temporarily" installed on the PVC pipe.



From another perspective, like this very clear way line of a straight line!



Then look at another angle,



Then look at another angle, so the gun on the straight ~!




Barrel, trigger done!!!

[3DBBQ]

Finally, to deal with a magazine, the barrel portion.




inlineclip ram the ball to some, if not the amount of good will out crooked




Complete inlineclip




Use instant glue to paste the trigger part.



Fitted with taps sealing skin.




Production of spin-bore barrel again.



Barrel part of the funnel opening 45 degrees shaved.





To do so will not jam




Next, cut a little with a knife marks, to make ARB ( rifling)



Cross marks, but also cut the other side



The fishing line stuck in the crevices.


Pulled the other end, finished cut.


Four lines dragged better.




After the pull-put 3 / 4 of the thin tube



This is the way cable, 1 / 4 rotation



Complete installation!!!!



The part of painting, using paint TAMIYA PS series, will not paint chips.





GO TO2011 JSPB COMBAT(SUMMER) Album



Thank you for your read.
JSPB BY:3DBBQ
www.nt3.idv.tw

Edited by 3DBBQ, 02 August 2011 - 10:14 AM.

[thesaz123]

Even though i just read this, i am already considering doing it! Nice writeup!!!

[Carbon]

A writeup from the master himself! I've always admired your work, so it's really great to see how you actually produce them.

Your rifling method is nice. Have you done side-by-side testing to see what kind of difference it makes in range or accuracy?

[chavez guy]

Wow. When I saw that 3DBBQ added a topic I got all giddy and excited and whatnot. I was wondering if the ammount of PVC pipe between the trigger and the RSCB is creating enough dead space to noticeably hurt ranges, because it kinda looks like the dead space could be reduced some.

[bennorco]

Do you find that rifling actually helps the performance of your blasters?

[3DBBQ]

1.rifling
I have to post the last year, our people here use my ARB (rifling) for a long time, it can improve the light-weight dart, I have a launch weight of only 1g of the dart can fly 25 meters, and will not fishtail



marshmallow 0.7g
stfans 0.8g
JSPB MAGNUM 1g
NERF Sonic 1.2g
NERF clipdart 1.4g
NERF Dart tag 1.5g
NERF Sucker 1.6g

I do not know what for stfans help, but can be improved greatly for JSPB Mega


2.dead space
If you use the pump, 1" big check valve there, dead space no a Problem,because you will just have a lot of air and power.
this designed in 2008 , JSPB-War flag,load 20 JSPB mega darts.

Although it will weaken some, it is still good for battle.

Edited by 3DBBQ, 27 July 2011 - 08:51 PM.

[arfink]

I can attest to the dead space making no difference with that huge of a pump on there, as my design also has loads of dead space (tee, elbow, 10 round RSCB clip) and can still hit 110 feet with slugs on 10 pumps with the crappy walmart bike pump I have in there. No worries about loss of volume, trust me.

[Ozymandias]

I have to post the last year, our people here use my ARB (rifling) for a long time, it can improve the light-weight dart, I have a launch weight of only 1g of the dart can fly 25 meters, and will not fishtail

While you are here, I do have 2 questions about your darts, as discussed in this thread.

1. How accurate are these darts compared to normal stefans/darts?
2. How durable are these? In other words, has the tape ever come off during a war?

[3DBBQ]

While you are here, I do have 2 questions about your darts, as discussed in this thread.

1. How accurate are these darts compared to normal stefans/darts?
2. How durable are these? In other words, has the tape ever come off during a war?

1. stefans high accuracy, very far, the only drawback is unsafe, will hurt,
JSPB Mega is safe,quick and easy made, the disadvantage is low accuracy, because the weight is close to the center,
using the ARB can improve accuracy beyond stefans.

2. two kinds of E-tape ,One for thick, one for the thin,thick is good! good Weight,and not degummed.
I have tried dymo tap, you can type some words, cool, weight is enough, but a week on the stripped.


ps: made into bowling pins shape, that can fly farther, better loading.

Edited by 3DBBQ, 28 July 2011 - 04:15 AM.

[b1g13en]

So you use the orange rubber tube to push the check valve right? Wouldn't it jam the check valve?

[Ozymandias]

1. stefans high accuracy, very far, the only drawback is unsafe, will hurt,
JSPB Mega is safe,quick and easy made, the disadvantage is low accuracy, because the weight is close to the center,
using the ARB can improve accuracy beyond stefans.

2. two kinds of E-tape ,One for thick, one for the thin,thick is good! good Weight,and not degummed.
I have tried dymo tap, you can type some words, cool, weight is enough, but a week on the stripped.


ps: made into bowling pins shape, that can fly farther, better loading.

Got it, Thanks!

[3DBBQ]

So you use the orange rubber tube to push the check valve right? Wouldn't it jam the check valve?

sway , jam , or checkvalve leak...
AdjustableTrigger-L2 improve these problems

[b1g13en]

What's keeping the air from leaking where the trigger is?

[thedom21]

What's keeping the air from leaking where the trigger is?

I was wondering the same thing. I didn't see anything mentioning that in the write up.

[One long shot]

If I'm speaking out of turn, tell me, but I don't think there is anything keeping the air from escaping. There probably is leaking air, but it isn't enough to hinder performance; just look at the ranges.

I'm sure it could be improved, but you'd put more work into it than it's worth. Again, if I'm wrong, please correct me.

Edited by One_long_shot, 29 July 2011 - 01:34 PM.

[3DBBQ]

What's keeping the air from leaking where the trigger is?

What does this mean?

[Edible Autopsy]

What does this mean?

When you drilled the hole for the woodscrew to open the check valve, you didnt mention an o ring or anything to seal it, so when you pull the trigger, does air just leak around the screw?

[cheerios]

Does this blaster have an over pressure valve?

[3DBBQ]

1. Will leak, but very few, high-pressure air will not run away from here, it will go to the barrel.
2. What is over pressure valve? Like magstrike's airtank?over pressure, release the air?i did not design this feature~

[One long shot]

An over pressure release valve, or oprv/opv, is a small valve that releases air when the pressure inside the tank gets too high. In a roundabout sort of way, it regulates the pressure in the blaster.

[arfink]

What's keeping the air from leaking where the trigger is?

Nothing keeps it from leaking. But it doesn't matter. With a big bike pump or ball pump on there, and with such a gigantic tank and large valve it's extremely forgiving of even a sloppily drilled hole there. I would know, my first one was an absolute mess and still performed just fine. I can see now I really need to show my version of this concept and try to explain it.

[Edible Autopsy]

Does anybody know where to buy that style of check valve? My local ACE only has the flap style ones.