Saturday, May 23, 2015

Aluminum Dome PIE Panel installation

Began sanding and sanding and sanding


The dome is the most recognizable piece to R2 so very important to get it right the first time...



Very important to mark and number your panels with a number so you can easily re-match them to the correct area when gluing them back on or mounting them to the hinges.



Once marked I then removed all the inner panels from the dome using a small metal cutting saw.  This allowed me to make roughly 2 back and forth movements before cutting through the little tabs remaining that were connecting the panel to the shell.


What a mess... also note the outer dome is very sensitive to bending without the support of the inner dome. You will need to be very careful not to put too much force or lean on it while cutting.


Aluminum fragments... anything that had the residue left on it from the laser cutting was cleared off using the strong metal brush as seen below... this is very strong and sharp... cut myself many times.


Both pieces fit together very well and remove easy too...


Here is the lower dome pan as well as assembly pieces.  I have removed the dome gear from the frame so I can assemble it in the correct order.


Here are a few of the dome pie panel servo hinges...



Installing the hinge requires a few things...
You hand place the hinge inside and move it by hand each time testing clearance of the pie panel hinge back that it clears the opening.  This was tough as the hinge backing plate was almost cut to exact size... I ended up trimming down the lower edges to allow easy clearance.


Once in the correct placement, I quickly hot glued the assembly onto the dome inside and allowed it to cool.  This allowed me to work on getting all the hinges installed.  Once I got them all installed and in the correct placement, I drilled through from the inside out through the hinge to install #4x40 flat head screws to hold the hinges in place permanently.  

Since the outer dome covers the inner, it covers the screws as well.  To ensure flatness, I counter sinked the holes where the screw heads were to be installed outside in.


A great view of the hinges in place, you can see where I marked the holes connecting each of the hinges.



Once pie panel is not going to open at this time, this is due to money and I will configure it later.


Great shot of counter sink holes where the screws will be inserted.



I then install the screw and tighted down the bolt nut using a screw driver.



While I am in there I screwed through the inner dome to allow connecting the HP shells to the inner dome.




You can see where the inner shells are connecting through the screws and as I connect them down with the nuts, it holds the HPs inside securely.




Great view of all items connected and secured


Ran into some issues, as I was connecting the two domes together, I realized I hadnt cut the port for the camera to view out the radar eye!

Got out the saw and proceeded to almost cutoff my hand :)


Notice the oooops here where the saw kinda flung out... no prob, thank God that is behind the radar eye shell and quite hidden.


The PSI lens area I took 3" pipe, cut it and hot glued to the inner dome area


Purchased 3" 5mm thick lens material to work as a defuser for the lights that will be installed behind.



The upper HP that sits on the exposed pie panel didnt match or align with the holes.. I will hot glue this piece instead.


Started to install the panels against the hinges... note, I use painters tape and sit the pie panel against the hinge... I then flip the dome over and push the hinge against the pie panel and hot glue it temporarily in place...

I then installed the radar eye as well as lens I got from Guy Varden from the R2 builders group.


Here are the dome hinges all opening perfectly.






Sunday, May 10, 2015

Doors, Hinges and more...

Struggles with the doors

It was a domino effect... because the skin didn't quite sit right, the door insides were not aligned and thus the hinges didn't sit well to hold the side doors nor the center bottom door.

After giving up on the center door (I glued it shut but left the hinge inside for future changes).  I started on the last outside right door.  The thought was, tape the inside with painters tape, put the first piece in the slot and hold it in position as I hotglue the hinge to the inside of the door... seemed ok.


I noticed some bending and warping of the frame near the util arm slots due to strong rubber bands.


I started to glue the rightside door.


There ya go... not as bad, not as good either but it sorta opens... I will have to sand or shave some edging off the door to get it to open freely.


Here is another look at it... 
notice it doesn't lay flat against the frame.  
This is due to the door not being rounded.  
I have some ideas that I will try after painting and assembling the system to use earth magnets to hold the doors closed shut tight using thin strips of metal on outer edges.


Took it to the clothes rack and started to paint it... going well.


Paint is not bleeding and its laying down rather good.


I let it try and started to add the details, inserting the util arm mechanicals inside.  
NOTE: everything is hot glued so I can remove it later if I replace parts.



Notice the right edge is messy - too much hot glue...


Center vent looks perfect.


Util arms in place, its starting to look more and more like R2


Both under arm vents in place.


Saturday, May 2, 2015

Assembling the body and applying the skins

I will not hold back - this sucked!

The skins were from an older run on the forums and I didnt realize they were a little off to these newer frames... I started with each layer applying the back first, and then aligning it using Painters tape, applying Glue and then moving on...




Re verified clearance on the front skin with the arms..




The back skin is on and ready to tackle the second layer of skins...


This proved to be more difficult than not... leaving the tape on didnt help me as I thought it would.





I reverted to using long rubber bands to hold the skin in place while I applied glue to sections...
This took a long time.


Slow and steady... notice I removed the sections that would be doors.


Ok its dry and connected...


Now for the leftside door... this was harder than I thought as well... the hinge didn't have enough clearance as I used hot glue to temporarily connect it.



Look at this mess!  Sanding and filing...


Ok looks like a close to complete door... now for the rightside