Weekend Photos - November 2021

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healey36
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Weekend Photos - November 2021

Postby healey36 » Fri Nov 05, 2021 1:50 pm

Started a new project - making a set for photographing miniature model tanks and figures. Wanted to try a few scenery techniques while I'm at it. I haven't done much in the way of serious scenery since working on The Old Man's HO layout back in the 1970s, and it seems resources and methods have changed quite a bit over the last four decades. The good thing here is, if I hate it, I can just pitch it and start over.

I made a foam base using a few bits I had left over from a prewar tinplate-style mountain project from a few years back. I used an extra chunk to form a low hill or ridge on one corner, glued in using some Loctite Power Grab. Using a hobby knife, I did a bit of carving to get it into an approximate shape. I also roughly chiseled out the base for a gravel road that goes from the front edge up and onto/over the hill/ridge.

I then filled/formed/smoothed the slope using some DAP Fast 'n Final lightweight spackling. I've used this stuff to good effect in the past when making wargame terrain. Here, I had to use it in greater volume, and it took a lot longer to set and dry than in the past (days, not hours).

The whole thing was looking rather boring, so I used some Plaster-of-Paris and a Woodland Scenics random rock mold I had laying around to make a low cliff on one side. Here I made a couple of mistakes, the first being I neglected to use any sort of release agent on the mold. This made things a bit difficult in getting the casting out once it had dried. Fortunately the mold is rubber, so with a bit of care I was able to just peel the mold back and dump the casting out. Once it was completely dry, I used a razor saw to cut a flat edge across the bottom, sized to fit.

The second problem, which you can clearly see in the picture below, is I didn't get all of the air bubbles out of the plaster before I let it set. Now I have some pretty obvious air bubbles on the cliff face. I'm going to have to go back and try to fill those, then repaint the rock. Also, the color seems rather dark, so I might repaint it a light shade of gray to start. I'm not sure what method one can use to mitigate the bubbles and air pockets. I tried stirring the plaster a bit just after pouring, thinking this would agitate it enough to release any bubbles. Clearly it didn't.

Anyway, once I had the rockface cemented in, I backfilled with some more lightweight spackling. I gave the whole thing a coat of latex interior flat wall paint I had leftover from painting the living room. I then painted the rockface with some acrylic craft paint my wife had in her stash, followed by a wash made from diluted black acrylic model paint (Vallejo). I then dry-brushed it with some off-white and green-brown acrylic model paint (Vallejo). It looks okay to me, except a bit dark, but I've got to deal with the damn air-bubbles. While I work on that, I'm thinking ahead to turf. Any suggestions/recommendations?

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Meanwhile, I'm still working on clearing away all of the stuff piled on the layout as well as in the office. Hoping to make more progress on that this weekend. I got sidetracked a bit this week finalizing my signup for Medicare and re-enrolling my wife in ACA for the first bit of next year. I think that's done for now, so refocusing on other matters at hand.

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robert.
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Re: Weekend Photos - November 2021

Postby robert. » Fri Nov 05, 2021 8:19 pm

A giraffe car of a different scale. :lol: :lol: . Yesterday i set delivered and installed 2 12/14 foot tall giraffes in a guy's back garden. Almost 1/4 of a mile away from my truck. in a round about way. along with over the river and trough the woods.
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robert.
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Re: Weekend Photos - November 2021

Postby robert. » Fri Nov 05, 2021 8:23 pm

Get some dollar store paint brushes. You can fill those air bubbles with bristles to look like weeds. Cut the bristles off and try to glue them in the holes. then report back on how many you have glued to your fingertips. :lol:
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Rufus T. Firefly
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Re: Weekend Photos - November 2021

Postby Rufus T. Firefly » Fri Nov 05, 2021 9:25 pm

healey36 wrote:.........I didn't get all of the air bubbles out of the plaster before I let it set. ........... I'm not sure what method one can use to mitigate the bubbles and air pockets. I tried stirring the plaster a bit just after pouring, thinking this would agitate it enough to release any bubbles. Clearly it didn't.


Too much stirring actually increases bubbles. Trick to use is to take the mold over to the clothes drier and leave on top while you run a cycle. Vibes will get the bubbles out.

It looks okay to me, except a bit dark, but I've got to deal with the damn air-bubbles. While I work on that, I'm thinking ahead to turf. Any suggestions/recommendations?


Once you put turf and weeds, foliage clumps, etc. in place you won't see them. I should put all my leftovers in a box and run them by you next week.

Meanwhile, I'm still working on clearing away all of the stuff piled on the layout as well as in the office. Hoping to make more progress on that this weekend. I got sidetracked a bit this week finalizing my signup for Medicare ........


Good colder weather stuff to be handling.....
Evil cannot create anything new, it can only corrupt and ruin what good forces have created or made.

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healey36
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Re: Weekend Photos - November 2021

Postby healey36 » Fri Nov 05, 2021 9:37 pm

Are those giraffes bronze, or some other material finished to look like bronze? Either way, very cool. Never surprises me what people put in their garden, but those are really neat.

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G3750
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Re: Weekend Photos - November 2021

Postby G3750 » Fri Nov 05, 2021 10:40 pm

healey36 wrote:Are those giraffes bronze, or some other material finished to look like bronze? Either way, very cool. Never surprises me what people put in their garden, but those are really neat.


Yeah, but how are you going to get them in the box cars? :shock:

:lol: :lol: :lol: :lol: :lol: :lol:

And John Dunn is going to have a cow, right Rufus? :lol: :lol: :lol:

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healey36
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Re: Weekend Photos - November 2021

Postby healey36 » Sat Nov 06, 2021 7:34 am

Rufus T. Firefly wrote:
healey36 wrote:.........I didn't get all of the air bubbles out of the plaster before I let it set. ........... I'm not sure what method one can use to mitigate the bubbles and air pockets. I tried stirring the plaster a bit just after pouring, thinking this would agitate it enough to release any bubbles. Clearly it didn't.


Too much stirring actually increases bubbles. Trick to use is to take the mold over to the clothes drier and leave on top while you run a cycle. Vibes will get the bubbles out.

Having done a bit of concrete work over the years, I had thought about that. Wouldn't have occurred to me to use the clothes dryer, though.

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healey36
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Re: Weekend Photos - November 2021

Postby healey36 » Sat Nov 06, 2021 7:40 am

robert. wrote:Get some dollar store paint brushes. You can fill those air bubbles with bristles to look like weeds. Cut the bristles off and try to glue them in the holes. then report back on how many you have glued to your fingertips. :lol:

I have a couple tins of static grass that I've been wanting to try. Years ago, I seem to recall quite a discussion (might have been here on MTJ) regarding how to apply the stuff, especially the use of some electric gizmo that you wand over the turf to make it stand up as it dries. I often wondered if you couldn't just use a balloon...blow it up, rub it on some carpet or something to build up a decent static charge, then wave that over the turf to get it to stand up.

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Re: Weekend Photos - November 2021

Postby gregj410 » Sat Nov 06, 2021 9:03 am

Paul,
The trick to good castings is to heavily coat the mold with a solution of dish detergent and water before you pour the plaster. That should solve the air bubbles and release problems. It will also help preserve your molds. Look up Luke Towan on YouTube. He does incredible diorama tutorials. Generally under 30 minutes and very insightful. Good luck, it’s shaping up nicely!

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Re: Weekend Photos - November 2021

Postby gregj410 » Sat Nov 06, 2021 9:47 am

healey36 wrote:
robert. wrote:Get some dollar store paint brushes. You can fill those air bubbles with bristles to look like weeds. Cut the bristles off and try to glue them in the holes. then report back on how many you have glued to your fingertips. :lol:

I have a couple tins of static grass that I've been wanting to try. Years ago, I seem to recall quite a discussion (might have been here on MTJ) regarding how to apply the stuff, especially the use of some electric gizmo that you wand over the turf to make it stand up as it dries. I often wondered if you couldn't just use a balloon...blow it up, rub it on some carpet or something to build up a decent static charge, then wave that over the turf to get it to stand up.


Might work but I think the ballon has to be connected to the bonding agent some how for the grass to stand up. There were all sorts of cheap static grass dispenser do it your selfers on OGR at some point. I ended up opting for the WS one for 100$ I think. I wasn’t happy about spending the money but I would’ve been less happy trying to concoct my own. Essentially you have the dispenser that has a wire running from it with an alligator clip that connects to a little metal 4 legged thingy that sits in the adhesive. You simply turn on the dispenser switch and wave it over the glued area and it kind of does it’s thing. I liked the results. Planing to do a little more soon, maybe I can take some pics.

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healey36
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Re: Weekend Photos - November 2021

Postby healey36 » Sat Nov 06, 2021 9:51 am

gregj410 wrote:Paul,
The trick to good castings is to heavily coat the mold with a solution of dish detergent and water before you pour the plaster. That should solve the air bubbles and release problems. It will also help preserve your molds. Look up Luke Towan on YouTube. He does incredible diorama tutorials. Generally under 30 minutes and very insightful. Good luck, it’s shaping up nicely!

Yup, I definitely screwed up and forgot to apply a release agent, some diluted dishwashing soap being a common one. I didn't realize that would help with the air bubble phenomena, though. I'm going to give it another try shortly, as I need a few more rocks; we'll see how it goes.

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robert.
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Re: Weekend Photos - November 2021

Postby robert. » Sat Nov 06, 2021 11:50 am

Yes giraffes are bronze and heavy. Lots of youtube vids about homemade static applicators. Simple as a 9 volt battery and a red Solo cup
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Rufus T. Firefly
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Re: Weekend Photos - November 2021

Postby Rufus T. Firefly » Sat Nov 06, 2021 2:54 pm

healey36 wrote:
gregj410 wrote:Paul,
The trick to good castings is to heavily coat the mold with a solution of dish detergent and water before you pour the plaster. That should solve the air bubbles and release problems. It will also help preserve your molds. Look up Luke Towan on YouTube. He does incredible diorama tutorials. Generally under 30 minutes and very insightful. Good luck, it’s shaping up nicely!

Yup, I definitely screwed up and forgot to apply a release agent, some diluted dishwashing soap being a common one. I didn't realize that would help with the air bubble phenomena, though. I'm going to give it another try shortly, as I need a few more rocks; we'll see how it goes.


For all the hoopla over release agents, I've never used them for plaster casting and not found that they do anything to prolong the life of molds whether it be for plaster or resin.

But, what I have used on/off for molds with significant undercuts when casting resin is Testor's Gloss spray paint. That acts like a release agent adn the casting binds to the paint with the part coming out of the mold primed and ready to use.
Evil cannot create anything new, it can only corrupt and ruin what good forces have created or made.

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healey36
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Re: Weekend Photos - November 2021

Postby healey36 » Sat Nov 06, 2021 3:22 pm

Rufus T. Firefly wrote:For all the hoopla over release agents, I've never used them for plaster casting and not found that they do anything to prolong the life of molds whether it be for plaster or resin.

But, what I have used on/off for molds with significant undercuts when casting resin is Testor's Gloss spray paint. That acts like a release agent adn the casting binds to the paint with the part coming out of the mold primed and ready to use.

Hmmm, that's interesting (spray paint inside the mold). Do you give it a shot of paint, then immediately pour the casting, or do you wait a bit until the paint sets?

I'm giving this plaster casting a second try. This time I sloshed a bit of diluted dishwashing soap around in the mold (as recommended by Woodland Scenics), poured out the excess, then immediately poured the plaster (which I made a bit thinner this time). We'll see how this works.

Went to the craft store this AM and picked up a couple bottles of "clover" acrylic craft paint. When I get to the flocking bit, I plan to give the base a mottled green-beige undercoat, then apply the ground-cover over that. I've gathered up my supplies, and I have a crap-ton of ground foam and static grass. What can go wrong?

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Re: Weekend Photos - November 2021

Postby gregj410 » Sat Nov 06, 2021 4:20 pm

For all the hoopla over release agents, I've never used them for plaster casting and not found that they do anything to prolong the life of molds whether it be for plaster or resin.


Just simply speaking from my experience. I have lots of Bragdon molds and they aren’t cheap. I once forgot to soap down the mold and a spent the better part of an hour trying to remove particles of POP from the crevices. I clearly notice a difference in the ease of release of the mold when it’s ‘primed’.


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