Ok.. So I was reading about all the issues people where having with there qu-bd extruders and how they where addressing them. One issue was roughness in the bore.
I got some lapping compound and I used that and a round nylon brush to get that all straightened out. I found a set of very nice nylon cleaning brushes at American Science and Surplus that did the trick for about 3 bucks. I startedt using the next to smallest brush brush to lap the bore. Initially when I stroked through the bore it was quite rought and I couldn’t fit the next size up at all. I stroked it 400-500 times with the small brush with the tube immersed in lapping compound and then I repeated again with the next size brush up. Thinking about it I wonder if I wore the brushes down or I actually did something. Hmmm. I have two extruders and…….on the unlapped bore, if I insert the intial brush it goes in some what easier but it’s as if you can feel the burrs inside the bore.. So I feel fairly convinced that my lapping efforts have accomplished something.
I wound up reassembling and I’m at a point where I need to do the wiring I found the specs for the motor here: http://www.wantmotor.com/ProductsView.asp?id=156&pid=75&sid=80
I had ordered a ramps 1.4 https://ultimachine.com/ramps-pre-assembled-kit-complete with the optical endstops. The kit includes a 36″ 9 conductor, 26awg cable, pre-crimped w/ 1×2 0.10″ 5A connectors/housing for thermistor (x1)
The wiring color sequence that plugs into ramps 1.4 is Red Blue Green Black. Ok… I checked continuity on the motor to the diagram and it seems to matches.
I want to isolate the wires. especially on the thermistor from any type of fatigue damage from the carriage going back and forth. So.. I’m thinking I need a small board to connect the the ribbon cable I got from Ultimachine. I tried googling to see if there was a board connection
Links for wire gauge seem to be all over the place. here: http://bestboatwire.com/catalog/includes/languages/english/wire_gauge_chart.html and here:http://www.engineeringtoolbox.com/amps-wire-gauge-d_730.html
This is the guide that seems the most handy. http://www.sunforceproducts.com/Support%20Section/Solar%20Panel%20&%20Charge%20Controllers/WireGaugeSelectionTable.pdf
Then I’ll need to deal with a cooling fan as well http://pomeroyprinting.blogspot.com/2012/09/using-cooling-fan-on-ramps-14.html
So I finally got everything basically wired up… I found some qd-bd thermistor values here: http://www.fabric8r.com/forums/showthread.php?728-Thermosistor-delta-values-etc
So I suppose they need to be entered somewhere. Ok… Googling I found this . http://reprap.org/wiki/Sprinter
I think I have the settings already…