OneUp V2 Build Log.

[mr_intensity]

Mystery No More

It's a grand slam!  Freakshow!  Freakshow!

I did not make it to build night, this week.  So I decided to play with the OneUp at home.

I looked over the Marlin Firmware, as I thought I saw something in there about a filament sensor (OneUp has no such sensor).  Nope.  Already commented out.  We're good-to-go.

Nothing left to do but try the thing out.  Wire everything up.  Boot the laptop.  And, turn on the OneUp.

<click>

Okay, Repetier Host is up.  Click connect.  Looking good.  Click "Heat Extruder."  Yep, everything coming up to temperature.

Okay, I am not in a good position to look into my extruder (don't have filament in there, yet), so I am just going to stick a finger in there and feel if that gear is turning.

Extruder manual control defaults to 10 mm.  Good enough.  I click the button.

I don't feel any movement, but damn, I swear I hear a motor turning.  Okay, now I have to reposition myself in order to see in there.

Click it again and...yes, there's movement.  It is turning...BACKWARDS!

If you remember my entry from last year, where I first got the X-Y-Z axes' motors running, I had to flip the electric connector on all three motors, but did not flip the extruder motor at that time, as I could not work the extruder motor until I fixed the heating element/thermocouple.

This completes the grand slam.  All four motors were wired up backward.  Flip the connector, and play some more.

Next, I try feeding my sample filament (that came from the kit) in there.  It broke off in my fingers.  Pretty dry and brittle, sitting around for a couple of years.  I put the little broken off piece in the extruder, and moved it forward and back - not far enough forward to heat it up in the extruder - just enough to test the mechanicals.

So now it looks like the only mystery is:  Why didn't it work last time?

Power down.  Declare another victory.

Currently, my X-carriage is some random height above the base of the OneUp.  I measured the random height at each end with a tape measure:

+--------------------+-----+
|Motor side:         |152mm|
+--------------------+-----+
|Free Side:          |146mm|
+--------------------+-----+
|Droop Differential: |  6mm|
+--------------------+-----+

So, my X-axis has over half a centimeter (a hair or two over a quarter of an inch) in droop.

During my running around, today, I stopped by my local big box store to pick up some M3 by 50 hex cap screws.  Of course, they only had 12 mm screws in the M3 size.  *Sigh*  I knew I should have went to the TrueValue hardware store in Sarver.  It is just that it is a haul to get out there, and I was doing a lot of other stuff.

So, once I get the screws/springs to unbalance the table, I might actually attempt to pump some plastic.

Stay tuned.