In this video i describe how you complete the hardware for Solder Dispenser.

CAD & CAM Tool Chain ChiliPeppr
1

In this video i describe how you complete the hardware for Solder Dispenser. Here some links to used Material:

Stepper Nema14, (0.4 - 0.8A
http://www.ebay.com/itm//231400432268

Syringe with Canullas:
http://www.ebay.com/itm/321327139655

Distance Bolts 10/35/70mm length:
SW 5mm with M3 Thread
http://www.pollin.de/shop/dt/ODQ4NzU1OTk-/Bauelemente_Bauteile/Mechanische_Bauelemente/Montagematerial/Distanzbolzen_M3.html

CNC Coupler 5mm:
http://www.ebay.com/itm/262010478925
http://www.youtube.com/watch?v=HgMTz1hqpQA

2

This looks good. You said you may not have enough power, but with that M5 threaded rod you’re getting a decent mechanical advantage so I would think you will have enough power. I think the design looks nice and simple. Could you make it a bit shorter? Is the Delrin ok or do you need those parts made out of aluminum?

3

I try to make it shorter, maybe a smaller syringe. I’ll think about it. I see forward if the power of stepper enough, if i use microstep switch then the power of the stepper are not so strong. The Delrin are a very good material and we use this at shapeoko as z-axis nut, i think it’s realy good for this project.