Best cheap Spray Paint Guns for DIY CNC builder or small workshop

[Philipp]

On all of my 4 spray guns, you do not need to fully disassemble to take out the needle. You just fully unscrew the paint volume screw, remove the return spring and pull out the needle. This K3 looks as though it is the same, so why the problem?

@ cropwell,

This K3 Chinese copy is different. To explain in details (have a look into the attached picture):

• The paint volume is regulated by the screw marked with the RED circle. This screw cannot be fully extracted, but no problem about it, since it does not effect cleaning process.

• The screw marked with the the GREEN circle, only determines how far the trigger can be pulled. For example, you can preset a trigger pull to the middle, in order to achieve a specific paint cone and remain as is. This screw can be fully extracted, but there is no effect to anything else, since the trigger spring is secured by the screw marked into BLUE circle.

• The part marked with the the BLUE circle, guides the needle and secures the trigger spring. Normaly (as happens on genuine Iwata model) this part should be possible to unscrew and release the spring AND the needle by gently pulling back. Unfortunatelly, this part, CANNOT be unscrew because it is part of the aluminum frame. The entire "screw" appearance of the part, is just decorative - not functioning! Therefore, the trigger spring and needle are traped there and cannot be extracted!

I hope the above explanation, can clearly give a picture of the problem.