Bruce Chandler said:
I still plan to put some pvc “feet” under each base, but I wonder if it’s really necessary, or noticable, to “frame” the arches???
Thoughts? Opinions? Warnings? Threats?
If I respond will you listen?
Gregory Hile said:
Sintra is also known as Komatex.
Both brand names
" Rooster " said:
Bruce Chandler said:
I still plan to put some pvc “feet” under each base, but I wonder if it’s really necessary, or noticable, to “frame” the arches???
Thoughts? Opinions? Warnings? Threats?
If I respond will you listen?
Hopefully without threats? (https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-foot-in-mouth.gif)
OK I built two of these if you remember (maybe not cause of age(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-wink.gif)). The first one the thread still stands but no pictures however Fred prefers it that way. It’s much better to describe what you are doing as opposed to being bothered with silly pictures…https://www.largescalecentral.com/forums/topic/10312/cvrr-concrete-bridge-over-susquehanna-river
That viaduct has been outside for almost 10yrs now with absolutely no issues other than weed wacker damage.
The other one I built for the O gauge layout in our local museum and was only 4’ long but 12" high. These are the pictures I’m going to show for reference as I believe in the old saying that a picture can say more than 1,000 words.
1st off it appears you are trying to bend 5mm board not 3mm stuff. 2nd you need to flip it upside down and tack it in place as you go then cut the waste off flush. As for ventilation if you bore some holes into your 2x uprights and leave the ends open air will flow right through it. I did both of mine a bit different but the same principle.
Hope the pics make sense.
Makes sense and looks good!
So does yours …" just don’t go all detail freak on us"
OK
Well, I am still thinking this through. I am using 3mm sheet, but I cut it to fit the inside, not really thinking (my mind was never that sharp and age doesn’t seem to have made anything better.)
I don’t think I can overdo detail on a viaduct!(http://largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-foot-in-mouth.gif)
Bruce Chandler said:
Dilemma time.
Well, it’s probably ALWAYS that time, but I’ve started thinking a bit more.
My initial thought was to bend some 3mm thick sheet to form the inside of the arch.
(snip)
I still plan to put some pvc “feet” under each base, but I wonder if it’s really necessary, or noticable, to “frame” the arches???
Thoughts? Opinions? Warnings? Threats?
Bruce, for whatever it’s worth, if it was me, I would finish the arches with curved sheets.
PS – I see Rooster has already shown the way!
PSS – The place I get Sintra has more variety of thicknesses and sheet sizes than anywhere else I’ve seen:
http://www.foamboardsource.com/sintra-pvc-foam–sintra-pvc-board.html
Bruce Chandler said:
I don’t think I can overdo detail on a viaduct!(http://largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-foot-in-mouth.gif)
Oh, I don’t know about that. Street lamps. Concrete formed lamp bases. A railing ( either concrete or wrought iron). Bench offsets. Decorative entry ways. Offset brick lines. Water pipes hung along side. Buttresses for the arch bases. Cobble stone walkway. Builders plate. Dedication plaque.
Yep you could be right about not overdoing the details(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-cool.gif)
Well…this is interesting.
I really appreciate the advice here, but it looks like I did not do my design correctly to line the arches.
BUT, also looking at Bob’s viaduct; when I was there, I didn’t realize he had NOT lined the arches - you really don’t notice in person.
Now, my arches are a LOT lower and there will be no clearance for much of anything except chipmonks so I don’t think you’ll see much of anything (unless you’re a chipmonk.(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-surprised.gif)).
I think I might line the walls for just a couple of inches; this way, I won’t have to worry about heat building up in any enclosed space, but probably most important of all, it means I don’t have to hassle with the lining. (https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-embarassed.gif)
Meanwhile, in the “I sure hope this really fits” category, I tried my pieces on top of the existing trestle.
I think I’m good…(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-innocent.gif)
" Rooster " said:
OK I built two of these if you remember (maybe not cause of age(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-wink.gif)). The first one the thread still stands but no pictures however Fred prefers it that way. It’s much better to describe what you are doing as opposed to being bothered with silly pictures…https://www.largescalecentral.com/forums/topic/10312/cvrr-concrete-bridge-over-susquehanna-river
Yeah, as if my age made those pictures disappear???(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-embarassed.gif) Remember, a picture is worth a thousand words!
Bruce Chandler said:
Andy Clarke said:
Ohhhh, a nice project… Only 93?? Chilly, huh… (http://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-cool.gif)
Looking forward to watching this build.
I am officially a wimp!
It got down to 90 so I went back out to cut some 2x6 with the chopsaw…had to come in. I was making puddles in the sawdust and couldn’t vacuum them up because they were all too wet - sheesh; it’s not like running a chopsaw takes much effort…put you’d never guess by how sweaty I am. Back to the AC!
I remember when my father was 75, and I had just turned 40. He told me that he could no longer tolerate the heat. I called him a wimp. He agreed, then cursed me with the same intolerance of heat at 75. It worked. Bastid. (https://largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-laughing.gif)
Bruce Chandler said:
" Rooster " said:
OK I built two of these if you remember (maybe not cause of age(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-wink.gif)). The first one the thread still stands but no pictures however Fred prefers it that way. It’s much better to describe what you are doing as opposed to being bothered with silly pictures…https://www.largescalecentral.com/forums/topic/10312/cvrr-concrete-bridge-over-susquehanna-river
Yeah, as if my age made those pictures disappear???(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-embarassed.gif) Remember, a picture is worth a thousand words!
Friar Fred prefers “no pictures” only description in text which that thread has. I’m beginning to think he may be correct. He is the Yoda of LSC ya’ know.
" Rooster " said:
Bruce Chandler said:
" Rooster " said:
OK I built two of these if you remember (maybe not cause of age(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-wink.gif)). The first one the thread still stands but no pictures however Fred prefers it that way. It’s much better to describe what you are doing as opposed to being bothered with silly pictures…https://www.largescalecentral.com/forums/topic/10312/cvrr-concrete-bridge-over-susquehanna-river
Yeah, as if my age made those pictures disappear???(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-embarassed.gif) Remember, a picture is worth a thousand words!
Friar Fred prefers “no pictures” only description in text which that thread has. I’m beginning to think he may be correct. He is the Yoda of LSC ya’ know.
He only likes text because he has NEVER figured out how to post a picture…
LMFAO
Started work on the through girder pieces today.
I thought about using the Split-Jaw pieces, but the cost would just be a bit too much - and I have no idea of my actual radius. So, cut the 2x8 down to size and screwed some 3/8" PVC to it. I’ll add some Plastruct pieces so it sort of resembles a girder - if you squint and it’s dark. (https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-foot-in-mouth.gif)
Also painted the first coat on the viaduct itself. I’m sure it will look even better with two coats.
Earlier, I found some rosettes on Thingiverse; scaled them down and then printed a bunch out. Glued them in place between the arches.
Looks like more nice progress, Bruce… (http://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-cool.gif)
Ya’ see you are already starting on the details !
" Rooster " said:
Ya’ see you are already starting on the details !
Those are “accents”, not details! (https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-embarassed.gif)
There’s no street lamps, or concrete formed lamp bases. No railing ( either concrete or wrought iron). No bench offsets. No decorative entry ways. No offset brick lines. No water pipes hung along side. No buttresses for the arch bases. No cobble stone walkway. No builders plate. No dedication plaque.
AND, if you look at YOUR thread, there’s still NO pictures!!!(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-cry.gif)
