Santa Fe in China Basin

[Cajonpassfan]

Welcome back, I was worried... 
This is like one of my favorite threads!
Otto K.

[railnerd]

Getting a layout finished by starting another... I like it! 

Sounds like me 

"I'll take ADHD for the win, Alex"

-Dave

[railnerd]

I managed to acquire some Atlas Code 55 turnouts, which enabled a quick check of fit issues over the weekend.  On the good news front, the extra lead before the points on the Atlas #5s elongated some leads by an extra half car-length. Failing to account for the switch stand and head blocks, I had to tweak the location of the Santa Fe lead. I can almost smell the plywood.

[railnerd]

Forgot to post an update on the pier…  will be making some modifications based on the drone video and new information uncovered.  Hope to be able to post more soon.

[davefoxx]

Forgot to post an update on the pier…  will be making some modifications based on the drone video and new information uncovered.  Hope to be able to post more soon.

We're looking forward to it!

DFF

[railnerd]

Well, a small update on the pier.  I wasn't happy with available N Scale railings, so a friend suggested I try doing some 3D CAD.

Will try to see how this works out on his snazzy printer.

[railnerd]

So, first set of tests with the Utilimaker 3 reminded me I have a lot to learn. My first attempt was printed with a raft, which pretty much obscured all the detail of the side rails.

The result reminded me of a melted mess:



I also noticed that the upper "ledge" of the detail was also lost.

I tried printing without the rafts & supports (I removed the risers), but didn't have much more luck:



Unfortunately, while the top print looks correct, it is HO not N. The feature size of the N version were too small to be replicated on the Z axis of the printer. You can probably see the remnants of a smeared layer on the top edge of the N Scale print.

At lunch today, my friend with a Form1 SLA printer said to send him the STL file for him to try. We'll see how that comes out. As a backup, I took a side trip the Train Shop on the way back home to pick up Evergreen styrene, Tamiya Thin Cement, and an NWSL Chopper III.

[wazzou]

That looks like a pretty straightforward jig, fill, glue, assembly job with Styrene.

[railnerd]

That looks like a pretty straightforward jig, fill, glue, assembly job with Styrene.

Yup:

[railnerd]

Ok, so gluing up railings was inspiring...  so I decided to take another look at something which froze me dead in my tracks.

That cool drone footage showed me that the end of the ferry slip wasn't just a simple set of pilings lashed together:



Spent some time scrubbing back and forth on the video, and found that my friend managed to capture a full overhead view.:



Probably going to check and see if Archer Transfers rivets can be used to model the topside bolts (http://www.archertransfers.com/AR88053.html?).  I think I'll used HO Scale NBW castings for those side bolts.

I've started making more 3D CAD to enable me to carefully cut and glue more plastic together:

[railnerd]

Fun with TurboCAD yielded the next pass at the pier end.  I omitted the set of outer pilings, as I want to fabricate those with wooden dowels:

[railnerd]

At the encouragement of a friend, I made some attempts at 3D printing the pier end.

Using a friend's Ultimaker 3, I made an "all up" attempt at printing the entire assembly in one pass.

Unfortunately, I got the scaling incorrect (saved the STL in "inches", but Cura expected "mm"). This led to a smaller than expected print— but the job still took over TEN hours to print.

There are still globs of PVA (think glue stick) support that I need to soak/scrub away that are visible here, as the support structure is printed using a secondary extruder head.



In parallel effort, I sent a subset of the design to a friend who has a Monoprice Select Mini 3D:



The idea here was to "automate" the construction of the the layers of the pier end, but still use plastic tubing for the piers.  This print exactly matched the CAD dimensions, which is awesome— but this may need "shrinking" to match up to the model I've been building.

[Spades]

Nothing to add...but I just enjoy this thread so much.

G

[railnerd]

Had some good success with the "subset" print.   Did some checking against the in-progress pier and also checked the fit of the plastic piling (the outer pilings will be "real" wood).  I may choose to make some size adjustments, but things look great so far.  Also considering adding some NBW castings to the print— the feature size of the inexpensive monoprice printer didn't really support adding them to the model.

[railnerd]

Did the second print, and added some pilings.  Going to do some more tweaking before I glue, detail, and paint.