-Oparose Drill heads on the large and small grids should be visible again.

Blender didn't do a complete export because I forgot to push a button. The drills should no longer be trying to impersonate the headless horseman.

-Oparose Large grid drills and Oparose Small grid drills should be drilling in the correct direction now.
-Oparose Welders have had their sensor field pulled forward slightly.
Note: This does not effect the GigusWeldus.

I had been using the SBC file itself to tell the game where the sensor was for the drills, however I fat fingered it some time ago and the drill's field was backwards. I have updated the models to include some extra behind the scenes bits to keep the sensor field in the correct location now that it's fixed. The Oparose drills should now collect material from the correct direction again.

I have also pulled the sensor field on the Oparose Welders forward slightly. This was due to an odd report or two of the increased sensor size potentially damaging engineers and welding far too much behind the tips. Oparose welders were never intended to weld more than one block behind the body of the tool itself. This should now correct both issues.

-large grid oparose drill now has sensor raius of 4, sensor offset of 3, cutout radius of 5, cutout offset of 4.
-small grid oparose drill now has sensor radius of 3, sensor offset of 1, cutout radius of 3, cutout offset of 0.8
-large grid 2125 refit drills now have sensor radius of 3.1, sensor offset of 3, cutout radius of 3.1, cutout offset of 3
-small grid 2125 refit drills now have sensor radius of 2.2, sensor offset of 1, cutout radius of 2.2, cutout offset of 0.8
-small grid 2125 refit grinder now has radius of 1.9
-large grid 2125 refit grinder now has radius of 2.9
-small grid oparose grinder now has radius of 3.9
-large grid oparose grinder now has radius of 5.92
-small grid 2125 refit welder now has radius of 1.9
-large grid 2125 refit welder now has radius of 2.9
-small grid oparose welder now has radius of 3.9
-large grid oparose welder now has radius of 5.92

-Issues causing the Oparose Gigus Weldus, Oparose Large Welder, and Oparose Small Welder to not mirror across certain axis properly has been corrected
-minor optimizations made to Oparose Welder family