Mossys 3D Models

Extending Pauls bondage theme, 3 naked Victorian ladies all chained up, no clothes or make-up (aka paint job and transfers) P2, P3 and P4 hoppers. Interestingly the P1 has integral hooks on the outside face of the dumb buffers, which I assume would be used to chain two wagons together, rather than the safety chains used on the later hoppers.

 

Which one has the bustle? Paint job is over to Rob, with light weathering. I've been looking at possibly using Precision Labels (percisionlabels.com) for the lettering, has anyone any knowledge of them or used them. They are expensive £28.50 for an A4 sheet of white letters but the alternative is to buy multiple sheets of different sizes which works out almost as expensive and with a lot of wastage.

 

The P2 caused me no end of problems trying to get the curves right but they look good when done.
Transfers that's exactly the problem I need lots of N, E, and R's and not all in the same size along with square dots!

 

More progress with the safety chains. I gave the 'open the chain link up' logic another go and actually got it working. Very fiddly but a nicer solution than sawing slots in the hook and mounting. Another 3 sets done very slowly but hopefully that will speed up, 9 sets done and I think there is sufficient chain left to do another 3, which means a metre of chain does 12 sets.

 

Thanks for that Rob. I will get in touch with him, basically all I need is NER's in a couple of sizes, custom numbers and tare weights. Things would get more complicated if/when I get around to the brake vans. Would you like a second set for your copies of the wagons?

 

I've decided I am board with wagons so I am going to make a start on the Class A loco I drew over the winter, it isn't going to be rushed just a nice back burner project. A test print of the chassis is running (Chitu 9 1/2 hours, Mono X2 11 hours) which won't be finished until after I am tucked up in bed. I have just been looking at the body and boiler, so a quick question for Paul, when you did you 0-4-4 did you print them separately or as a single entity
?

 

First Chassis Print was a disaster a) should have printed it upside down and didn't which made supporting it horrible also used light supports beefed up with medium and heavies. the light supports started failing after about 7 hours printing, b) springs failed due to very thin supports, originally drawn as close to prototypical as possible but the mounting walls are just to thin, below as drawn left, revamped right, not happy but the differences will be incredibly hard to see with the wheels in place and c) running irons again just to thin so deformed, again beefed up. Re sliced with medium supports and upside down so ready for attempt 2, Chitu say 7 hours so I reckon nearer 9.

Last Evening a test run of the body was set going which was due to finish about 5 this morning but I haven't been able to see the results as the boss is still in bed enjoying waiter served tea and toast. It's ok for some!

 

Ohh err Vicar was it meant to look like that?

Not just a fail also the FEP punctured fortunately the screen saver took the worst of the resin, small amount on screen but easily cleaned off, what should have been a Class A body!

 

Paul

An interesting result to be described as "good work". There is a hole on the bunker floor (for the retaining screw), but I could add a couple more just to be sure. Also the side tanks have half height inner walls which would also create vacuum pumps, need to think about those to. I didn't add any other details as it was just an initial test to figure out the best print orientation so next time I will try your way of smokebox first. Two other things come to mind, I used tough resin (order by mistake I'm trying to use it up) for the first time, a couple of other bits I printed on the same run came out ok but they have a very rubbery feel, not sure if that's what they are meant to be like or under cured? Also the temperature dropped quite a bit last night that could also have been a contributor factor.

I've just spent the last hour or more replacing the FEP and screen saver it's a $%^** getting that down without air bubbles got any clever tricks? Also triggered a new revised chassis print but this time using ABS resin, I'm not happy at all with that tough stuff, it may well be going in the bin. Oh and of course Chitu's 7 hours, printer says 9 so about 8 this evening before any results.

Mossy

 

So after 2 failures yesterday (1 my fault, 1 a print failure) and 16 hours of monitoring the printer isn't it nice even if you have to wait 9 hours to see this:



It's in the wash tub before having the supports cut away, curing will have to wait till tomorrow, when I will have another go at the body, another where Chitu says 7 hours but I think at least 9 hours. Fingers and all other appendages will be crossed for that.

 

Just looking in the cold light of the evening I have seen a number of things that need improving. The walls of the radial trucks which I printed at the same time as the chassis are desperately thin, as are the end walls and bottom of the ash tray all have been thickened up by .25mm. The other change which was an error on my behalf was I had missed out printing the brake mountings so they have been added. All these mean a reprint is necessary, but that's for another day, what I have is perfectly usable for a test build. I may also add 1 or 2 braces just to stiffen up the 2 chassis legs (one of these was removed when I was playing with building the joys motion, I still haven't decided if this will be included or not.

The missing mountings are the small triangular structures in this screen grab:

 

Well after 11 hours of printing, Paul's print it front first worked (sort of), the front bumper is distorted which suggests a lack of support, the rear bumper is also distorted (mea culpa - and what I did wont happen again), one of the inner faces of the side tanks failed to print at all, which needs investigating and the hand rail supports at the front of the side tanks didn't print (they needs thickening up some how) but all in all I am reasonably happy and have a body that I can use to test fit the other parts (cab interior etc). I have never tried to print a body of this complexity so it's all a learning curve. I am now running a test of the boiler as usual add 2 hour to the Chitu time so a 7 hour wait to see the results.

Photos - You will to forgive the scruffy knees, just an old pair of pants used when I am grovelling about in the attic.

Front Bumper



Rear Bumper



Side Tank



Oh and ignoring the damage A Class A body