Direct Drive Rotary Spits Ink Out Tip

**mattcicada** · 01-21-2011, 02:16 PM

i have one of roys and one of mikes they both do it... not the linear kind... what are needle bar runners?

***Alie K*** · 01-21-2011, 11:16 AM

Originally Posted by mattcicada

i have this same probelm only thicker pigments always come out the top of the tube... i have tried tighter rubber bands , bending the needle bar out? does anyone else have this problem? what can i do?

One thing I've found with thicker pigments, is that I have to run my machines slower. If you are not having problems with thinner inks, only the thick ones, either dilute the thick ink with a drop of distilled water or witch hazel into the ink cap so that everything is uniform, or slow your machine down to accommodate the thick ink.

I think it was Specialtechnique and/or rjdaddio that posted an interesting response to a thread about Dragonfly machines spitting ink out the tube because of people running them too fast and it almost building up somewhat of a vacuum which made the ink travel up the needle...

**Dan Kubin** · 01-21-2011, 12:08 PM

do you think those needlerunners would work well with a direct drive?

**The Limey** · 01-21-2011, 12:15 PM

Originally Posted by Dandan the Rotary Man

do you think those needlerunners would work well with a direct drive?

I really can't see why not if they do what they say they do, which is basically stabilize and centralize the needle in the tube, reduce friction and prevent stuff travelling up the tube. I guess it just depends on how cost effective they are. I have some ordered but don't have a direct drive to try them on.

**slicksteel** · 01-21-2011, 12:28 PM

I think they would work but you would prob have to clip on closer to the needle end as directdrives have to have some side motion play as to not bind up.

***Alie K*** · 01-21-2011, 05:06 PM

Originally Posted by slicksteel

I think they would work but you would prob have to clip on closer to the needle end as directdrives have to have some side motion play as to not bind up.

I'm not so sure they'd work on my direct drive. When I look at the needle, at the very top of the tube, there is a LOT of back and forth motion. It appears to just miss the sides of the tube opening. I feel like it would put a lot of strain on the needlebar, as it may force it to bend back and forth as it now doesn't have the room inside the tube to 'play'. I would think that could add strain to the motor? If not just the motor, but the pin in the bearing that the needlebar is attached to?

**The Limey** · 01-22-2011, 01:57 PM

Originally Posted by Alie K

I'm not so sure they'd work on my direct drive. When I look at the needle, at the very top of the tube, there is a LOT of back and forth motion. It appears to just miss the sides of the tube opening. I feel like it would put a lot of strain on the needlebar, as it may force it to bend back and forth as it now doesn't have the room inside the tube to 'play'. I would think that could add strain to the motor? If not just the motor, but the pin in the bearing that the needlebar is attached to?

I'm not sure Alie; that sure sounds viable but, looking at the photos Peter just posted, there is one hell of a lot of tension on his needle bar and a metal tube should also present a less friction than a disposable so, who knows, it might even be a case of swings and roundabouts depending on what set up people are using?

I think Phil's idea of a will it work video is what's needed to solve this now?