My version IS USING A STEPPER !! 5V NOT DC motor!!
With abt. 3cm stroke you can do plenty of PCBs - it is a lot of paste.... I can say you can discharge almost all from typical syringes that are sold on the market (or sold by Farnell) including Chinese paste.
***It is about 5-7mm missing to discharge all from some syringes.. - you can add in a plastic toothpaste plug in and you will discharge all ...
New version of dispenser (Dec 2015) has a longer piston and all can be discharged!!
The advantages I see are :
- No noise (no compressor), 5V stepper motor with gearbox are very quiet
.
- Easy to handle - small size,
- you can plug down the needle and leave it for next paste to PCB..,
- Simple easy power supply 5V charger + USB cable (you can use USB from computer,...)..
- Cable ties look strange but -this is the only way to keep it simple and low cost, I had previous model with 20ml Al. & holder but costs... and than you are limited with syringe size - diameter and.... problems start...
- and stepper motor with gearbox is strong /no maintenance needed, ...
I think it is handy all-doe not very fancy looking - but it was made for use not for beauty contest
Try it out ....
http://www.ebay.com/itm/271979673060?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649Larger and nice looking (as well 5V stepper but larger motor+gearbox) I have as well - but not on eBay where I sell this small.... Ask for price to my email if you want larger model for glue or other liquids or pastes -.....
I can say that from my sold Clients I get positive feedback on use;
" but until now it has worked without any problems and am very satisfied.
You have done a really good job. Thank you. and continue with the good work"
Mike