Free-moNebraska

[jereising]

I think it’s this:

Whoa!  A bit too rich for my blood considering the use it would get...
Funny, I'll buy a couple of Scale Trains locos and not bat an eye...OTOH, They earn their keep....
I searched several times and couldn't come up with it.
Thanks, Dave. 

[Mark W]

Yes, it's the DJI Pocket 2.  It's just a mini steady-cam that can shoot 4K video. 

In the big world you can get perfectly steady shots like this, taken with the DJI Osmo, the predecessor to the pocket:

For HO, the pocket would make a great cab view cam.  It fits perfectly inside one of my HOn3 gons, just as Dave describes.  In N scale, cab views are also possible, but may need some special editing.  It's very close, but the width of the gimbal is about half a millimeter too wide to fit through a Kato truss bridge!  Of course that's as measured, so probably 3 or 4mm too wide for a run-through.   But it does clear occupied sidings at 1.125" track spacing, so I'm excited to keep experimenting!

For Run-by shots, I am able to get the lens very close to ground level, maybe a scale foot or two above an N scale person's eye level.  It may not seem like much at first glance, but the more I look, the less miniature it begins to feel.  I'm still learning and figuring out how to get the best depth of field.  So far, I'm very pleased! 


https://i.imgur.com/PQLAUl5.jpg

[Mark W]

Production of the second bridge has begun!


https://i.imgur.com/DQASMu8.jpg

The pillars of the new bridge are printing now, with the debut of both bridges in just 30 days!
With the deadline fast approaching, I'll have to just duplicate the main span from the CBQ bridge, but the BNSF bridge will eventually get it's proper truss.
https://bridgehunter.com/photos/34/02/340268-L.jpg

I finished printing the fully operational draft of CBQ Bridge late last summer.  Everything clips or bolts together which makes upgrades and fixes a snap (pun intended ).
The main span of these bridges is 400 feet; that's 2 and a half feet in N scale.  The entire bridge is 8 feet 9 inches.


https://i.imgur.com/AZJSAWT.jpg

The CBQ truss bridge is made up of over 150 individual parts.  Draft mode printing took over 70 hours. 
Once the new BNSF bridge is finished, also in draft quality, I'll begin re-printing both bridges with further detail, in detail print mode.  This will take about 3 or 4 times longer to print than draft mode. 


https://i.imgur.com/dbEP18w.jpg

[wm3798]

Astonishing!  Draft mode is still probably better than anything produced during my Retro era!
Kudos on an amazing bridge.  Always impressed with how model engineers take on the work of the real ones!
Lee

[basementcalling]

Why not print the extra details and add them to the draft mode print instead of reprinting everything?

[wazzou]

Why not print the extra details and add them to the draft mode print instead of reprinting everything?

Feasibility study?

[dem34]

Why not print the extra details and add them to the draft mode print instead of reprinting everything?

The issue with draft is that it does leave a lot of gaps and fuzzy edges. By the time you've gone through the effort of getting it up to snuff you could have just reprinted the whole thing at .05mm and included the details on the CAD. And while it will still take an astonishingly long time to print its the printer doing the work and not the modeller who only needs to set the print going and observe the first layer.

[Mark W]

Why not print the extra details and add them to the draft mode print instead of reprinting everything?

The issue with draft is that it does leave a lot of gaps and fuzzy edges. By the time you've gone through the effort of getting it up to snuff you could have just reprinted the whole thing at .05mm and included the details on the CAD. And while it will still take an astonishingly long time to print its the printer doing the work and not the modeller who only needs to set the print going and observe the first layer.

Bang on.  Draft mode prints 0.3mm layers with fast moves; detail mode I can go down to 0.05mm layers.  In addition to adding detail in the CAD, it gives me an opportunity to adjust some parts based on what I learned assembling the draft prints. 

[Philip H]

to me this is where 3D Printers really shine

[davefoxx]

Damn, @Mark W, that bridge project is freaking impressive!  Nice work.  Your statement that "[t]he entire bridge is 8 feet 9 inches" answers the question of whether it will fit on a HCD layout.   

DFF

[MDW]

Damn, @Mark W, that bridge project is freaking impressive!  Nice work.  Your statement that "[t]he entire bridge is 8 feet 9 inches" answers the question of whether it will fit on a HCD layout.   

DFF

Awesome modeling - puts my current efforts to Frankenstein some ME bridge kits together to shame.
HCD?   That bad boy needs a BASD (big a$$ steel door) layout.....

Michel

[Mark W]

That's just the bridge.  The entire module set is about 21 feet, including the adapters that take it from standard double track to bridge spacing, back to double track, and finally back to single track on the Iowa side.  So basically it's one giant 2-1 adapter module.

What I haven't shown yet is the 11 foot long fill that raises track to bridge level across the flood plains:

 
https://i.imgur.com/kFHu1QE.jpg

[Jbub]

That's just the bridge.  The entire module set is about 21 feet, including the adapters that take it from standard double track to bridge spacing, back to double track, and finally back to single track on the Iowa side.  So basically it's one giant 2-1 adapter module.

What I haven't shown yet is the 11 foot long fill that raises track to bridge level across the flood plains:

 
https://i.imgur.com/kFHu1QE.jpg

So the question is, is this going to be ready for the Cheyenne show? Assuming all the snow they're getting today melts by May.

[Mark W]

I'm unfamiliar with the Cheyenne show, but I will have the bridge operation in time for a semi-private setup in April. 

The BNSF bridge is coming together much quicker than expected!  Granted, still draft mode

The printer busy printing away.


https://i.imgur.com/dME3nI1.jpg


The several beams are already in place!


https://i.imgur.com/av3obM3.jpg


There's a little bit of underside detail too.


https://i.imgur.com/OZIF4CV.jpg

[amato1969]

Epic!