RhB / Swiss Trains

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 Post subject: First items
PostPosted: Sat Jan 05, 2019 9:17 am 
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Location: Coldstream, BC Canada
Keith's son designed a modification of the BoBo" plow on the (M)LGB product. STL file (for the asking) or finished product (material + shipping), I'll print them in PETG rather than PLA — for outdoor use in hot climates.

Next item — Capricorn monument as soon as I know how it behaves with PETG.

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 Post subject: Re: First items
PostPosted: Sun Jan 06, 2019 11:12 am 
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OK the first BoBo" plow in PETG is printing. Projected time 3.5 hours, 22gr of filament. Looks a little fuzzy/stringy around the edges. Easy enough to clean up without much work.

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 Post subject: Re: First items
PostPosted: Fri Feb 01, 2019 5:06 am 
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Whilst at Thusis last September I came across a broken wooden carrier crate, marked RhB.
No idea what it used to carry, thought it might make a 3D project idea?

https://1drv.ms/f/s!AvnyaOatWGbGy3qYROOcdwmatkdh

Link to photos.


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 Post subject: Re: First items
PostPosted: Fri Feb 01, 2019 10:23 am 
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Thanks Glenn!

That's a nice little project.
30 years ago I watched the station helper at Filisur getting the turnouts (points) ready for winter, cleaning out debris and lubricating whatever needed it. I'll have to check that specific video, but this would be a handy carrier for the lube material and whatever else he had along besides that sturdy broom.
For the moment I'll grab the pictures with the info.

BTW having a folding measuring stick is a lot more convenient for recording purposes, than my measuring tape and notebook. :-? :-? Learned another thing today!! B-)
For this one I'll crank up the temp of the nozzle to get the pre-aged look.

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 Post subject: Re: First items
PostPosted: Sat Feb 16, 2019 10:07 pm 
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Using Glenn's pictures with the info I approximated the wooden carrier. Haven't looked for the maintenance items yet. Oil can, grease pot, sturdy brushes etc. of course I'm also looking for the correct size of handle. Brass wire should do the trick.
BTW after printing the initial sample it was crystal clear that these will not be printed with wood filament!!!
Wall thickness is 1mm and the wood prints best with a 0.6mm nozzle. :-B :-B Yes, they need a slight deburring, but too late in the day for that! :-o :-o

Image

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 Post subject: Re: First items
PostPosted: Mon Feb 18, 2019 5:04 pm 
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Printing sets of five, let me know if you "need" any. The carrying handle is 1.2mm brass wire.

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 Post subject: Re: First items
PostPosted: Tue Feb 19, 2019 4:10 pm 
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what scale are they? 1:22.5?


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 Post subject: Re: First items
PostPosted: Wed Feb 20, 2019 9:39 am 
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yes 1:22.5, I haven't tried 1:45 (0) yet. Have a feeling that would be pushing it. :-? Perhaps with a 0.2 nozzle??

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 Post subject: Re: First items
PostPosted: Thu Feb 21, 2019 3:18 pm 
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Good luck with a .2 or.25 nozzle - I have never managed to get a decent flow from them for any length of time. I suspect high quality and fresh filament would help but have made 0.4 my minimum for all practical intents. and yes - 0.6 for wood filament.

Just sharing - should you ever try Laybrick - no more than 20 degree for the bed, with this stuff USE glue on the bed otherwise it will fracture when you try to lift it and be very careful of the filament - its brittle.


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