Introduction: Project X4 XPLODER Mini K'nex Hand Grenade

Picture of Project X4 XPLODER Mini K'nex Hand Grenade

Trainman's first bomb - a small but effective grenade that explodes upon impact, showering the area with spacers. And only nine* pieces means it's the first really practical lightweight grenade!

3 Red Rods
1 Red Connector
3 Orange Connectors
2 Gray Connectors

2 Black Y-Connectors
Various Spacers (9 Gray or 27 Blue or anything in between)

It also comes with a safety lock!

*Not including ammo

Step 1: The Body, Part 1

Picture of The Body, Part 1

Only Trainy can turn 9 pieces into so many steps...

Build the first part of the body and set it aside.

1 Red Rod
1 Red Connector
2 Gray Connectors
Total: 4 Pieces

Step 2: The Body, Part 2

Picture of The Body, Part 2

The second half. Build and attach as shown.
2 Red Rods
3 Orange Connectors
Total: 5 Pieces

Step 3: Applying the Rubber Bands

Picture of Applying the Rubber Bands

Here we place the rubber bands on the grenade.

Pieces: Rubber bands (Not too many, 4 maximum)

Step 4: Priming the Grenade and Usage

Picture of Priming the Grenade and Usage

Here we will add the spacers and lock the grenade into grenade mode.

To do so, add spacers, place a Y-Connector onto the designated area, then place a second Y-Connector right behind the first - but DO NOT SNAP IT IN!!! Place it in as gently as possible. To lock it, twist the black Y-Connector like shown. To put the grenade onto Exploding Mode, place the Y-Connector upright.

Then Throw... and Duck...


alfpwns (author)2009-07-23

FINALLY! i found some1 how i think like Boston!

ILIKEPIE333 (author)alfpwns2009-07-24


alfpwns (author)ILIKEPIE3332009-07-24

Ypu like the red sox right? if so im happy that i found a person thats likes boston!

ILIKEPIE333 (author)alfpwns2009-07-27

you like it, too?

alfpwns (author)ILIKEPIE3332009-07-29

Yes I love Boston

ILIKEPIE333 (author)alfpwns2009-07-30

may I ask why? (no offense)

alfpwns (author)ILIKEPIE3332009-07-30

always have. I used to live next to Fenway then it adapted a my favorite team

ILIKEPIE333 (author)alfpwns2009-07-30

Dude! (but it must have been loud)

alfpwns (author)ILIKEPIE3332009-07-30

yes it was

ILIKEPIE333 (author)alfpwns2009-07-31


i like boston tooo!

ILIKEPIE333 (author)alfpwns2009-07-30

I have never actually lived in Boston, though

zxzxxzxxzxxzx (author)2010-08-13

its alsome dude

zxzxxzxxzxxzx (author)2010-08-13

broken peice dom

TigerNod (author)2008-10-27

Hey trainman this is awesome! A totally 5.0, best grenade on the site! Can I please mod this for on my RPG-7? I will give you a full 100% credit on the grenades. Please, I just need a grenade.

Darth Trainman (author)TigerNod2008-10-27

go right ahead. The license allows it.

TigerNod (author)Darth Trainman2008-10-29

Cool, thanks a lot!

ILIKEPIE333 (author)TigerNod2008-11-09

he already has a launcher for the X4

i like pie 2 are you american or are you a americant

USA!!!! I also love baseball and mom as well as apple pie

Gamer917 (author)ILIKEPIE3332009-08-05

i prefer cake even though the cake is a lie :-P

bighead5454 (author)Gamer9172010-07-20

The cake is a lie? *cries* stipid GlaDOS

ILIKEPIE333 (author)Gamer9172009-08-11

lol, I love Portal

ILIKEPIE333 (author)ILIKEPIE3332008-11-09


TigerNod (author)ILIKEPIE3332008-11-09

That is true... So what?

~Aeronous~ (author)TigerNod2010-02-17

hey, go check out IACs war bomb. THATS the best one on the site.

TigerNod (author)~Aeronous~2010-02-17

I know. Look at the date, that comment was about 2 and a half years old!

~Aeronous~ (author)TigerNod2010-02-17

GRAMMAR POLICE: it IS two and a half years old, lolz and I mistook it for this year, wasn't thinking much.

KnexFreek (author)2010-03-02

 Nice work. 5 stars and Subbed a loooooooong time ago :)

Pizzapie500 (author)2009-09-03

Um i made this pretty cool 4*

DrWeird117 (author)2009-06-12

Ever read Cell by Stephen King?

ILIKEPIE333 (author)DrWeird1172009-07-01

Finished it, great book, very violent, the only thing I didnt like was how it ended, it was too...calm, not actiony enough

DrWeird117 (author)ILIKEPIE3332009-07-01

Can't you just picture all that moving through your city? >: )


I hated the ending. Basically what it said was Johnny-Gee was cured.

ILIKEPIE333 (author)DrWeird1172009-07-01

I already read it, and yeah, its crazy how I can picture these landmarks throughout Massachusetts! I also didnt like how he didnt say anything else about Jordan, Tom, Dan, and Diana, he just left it hanging.

DrWeird117 (author)ILIKEPIE3332009-07-01

I picture Tom as like, a George Costanzo with a mustache. Huh? Huh?

ILIKEPIE333 (author)DrWeird1172009-07-02

It was kind of odd that Tom's character was the only one I matched to a real person face, more or less all the other characters were kind of blurs, like looking at people without your glasses on

DrWeird117 (author)ILIKEPIE3332009-07-02

I think Trainman is seconds away from killing us both. We shall move this to PMs.

ILIKEPIE333 (author)DrWeird1172009-07-06

lol sure

ILIKEPIE333 (author)DrWeird1172009-07-02

YES YES YES!!!!!! Exactly what I was thinking!!!

ILIKEPIE333 (author)DrWeird1172009-06-13

no, but now I will

DrWeird117 (author)ILIKEPIE3332009-06-13

Oh, ho, ho...Enjoy.

ILIKEPIE333 (author)DrWeird1172009-06-13

but...first I have to find a copy...

DrWeird117 (author)ILIKEPIE3332009-06-13


ILIKEPIE333 (author)DrWeird1172009-06-14


altrobot (author)2009-05-02

O me gawd! I has just had a brain wave! what if this was built into a gun? like the firing mecanism? this fires those blue spacers in on directection only so it shouldn't be hard!

i had the same idea and made a shotgun


took it apart ages ago....


1spartan95 (author)2009-05-10

Um, Sorry ,but what's a Y connector? Post a picture of one.

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