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Posts posted by jdb82
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7 hours ago, Fen End Pit said:
That does sound interesting, more information would be appreciated
David
I'll send you a message so as not to hijack Mudmagnet's thread :-)
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I had a similar problem with temperature. If you don't mind drilling two or three holes in the cover (which actually drills very nicely), you can make yourself a temperature controlled little heater. I got all the bits cheaply from Amazon - it seems to be very effective; I've not had any prints fail due to temperature (I think!), just dodgy supports. I printed a few parts this weekend when it was only 4 degrees in the garage. I can provide a list of Amazon links if you are interested.
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Resurrecting this thread now I actually have a 3D printer of my own. A while ago, (see first post) I had a play with Fusion 360 to model a few bits for a Manning Wardle Old Class i. After a few pieces of helpful advice, I got them looking like they should and had them printed in different materials by Shapeways & Xometry.
Now I've got my own printer - an Elegoo Mars Pro - I've printed them myself. Just though I'd post them here for interest sake Apologies for the poor lighting on the photos.....a light box is next on my list of things to make.- 6
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3 hours ago, 5050 said:
Higher melting point than white metal surely. Any idea what type/temperature of solder would be required?
From a quick Google search it looks like pewter melts at about 230oC, so a little higher than WM, by around 100oC-ish.
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Pewter could be an option, although I was really aiming for something with a higher melting point.
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First a bit of context: I'm part way through producing (very slowly) the CAD artwork for a set of etches for a Manning Wardle Old Class i in 7mm scale. Having done the chassis and part of the bodywork, I'm thinking about the castings. I have drawn some of these up in Fusion already, and have 3D printed them. I do like metal though, and have long since wanted to get into casting. I have a mini tabletop furness on the slow boat from China, and have plans to build my own burnout furnace. Traditionally, castings have been produced in either white metal or brass. I find the quality of white metal to not always be the best, not to mention the fact I'm terrified of melting the things when soldering. I much prefer brass, but from a casting point of view, brass produces some fairly unpleasant fumes when molten.
So now to the question: are there any reasons other metals are not used? They need to be 'solderable', but why not use something like copper? Price maybe? Aluminium bronze could be an option as it's copper based, with the addition of between 9-14% aluminium. Would the aluminium prevent it from taking solder? Not sure if viscosity when molten is a consideration - I guess the thinner the better for detail!
On the other hand, there may be a very good reason why white metal and brass has dominated for so long!
Any suggestions warmly welcomed, but bear in mind I'm not a metallurgist (yet)!! -
Slightly larger than 00 gauge, but I've been following the build of a 5" gauge model of Lion. If you are keen on Lion, it might be of some interest to you :-)
There's 50-something videos about the build so far, so many happy hours of watching!
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This is coming together very nicely Simon! I've been quietly following this for a while now and can't wait to see it finished. Very much admire the way you've battled your way through all the issues with the kit. Looking forwards to the valve gear
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16 hours ago, tstageman92 said:
Any major bits of advice you could give before I take the plunge and purchase one? I've seen a lot about washing and curing resin prints, whats this like? Do you have a specific machine to do this with?
Thanks
Tom
I've just started using my Mars Pro, and printed my first print with it yesterday (the standard 'rook' test piece that comes with it). Being a rookie at this too, I'm not in much of a position to give advice......however one thing that I read, and that makes a lot of sense, is the temperature in which you are trying to print. My printer is in the garage as I don't have space in the house, and therefore at this time of year, it's pretty cold. I have made a little temperature controlled heating unit which I bolted through the lid. How effective it is will be established over time, but on yesterdays evidence, it seemed to work pretty well. I can send you the links to all the bits I used if you want them.
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3 hours ago, jazz said:
Blown up etches from a smaller scale never works out.
So due to the topsey-turvey way my mind works, I'm now wondering, if blown up etches from smaller scales don't work, could reduced etches from a larger scale work any better?
Having only built 2 kits myself (I keep promising myself I'll do more, but life gets i the way!), I'm not in much of a position to answer it myself!
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11 hours ago, Fastdax said:
How about a pallet of cast-iron pipe fittings?
I found some free STL files which give a good range of threaded and flanged pipes and fittings, ready for 3D printing:
I used them on my layout in an overhead cable gantry:
But I'm sure a pallet of fresh castings (or even rusty ones for recycling or repair) would look good.
They look great! As they were free, would you mind sharing where you found the stl file from? I fancy printing some of them myself :-)
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Very nicely done Tim. I have been quietly following this thread in the background and love your work on the buildings, but have very much enjoyed seeing you branch out your skills into brass kits. I've only built 2 brass locos so far, and haven't had much time over the last couple of years (young daughter to blame!) to get to the modelling bench to finish painting the second one. Seeing you produce a cute little loco of such quality has made me want to make time to get back to my bench again.
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8 hours ago, Adam FW said:
I presume the software would also work on a Mac
Fusion works great on a Mac and seems to run without having to think too hard - that being said I only tend to model individual components of locos rather than the entire body!
The only gripe I have with Fusion on a MacBook (laptop) is navigating round the model on the mouse trackpad is a little clumsy. Or maybe I'm the clumsy one......not sure which!
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9 minutes ago, Scott Read said:
Hi,
I'm looking to represent the Engine sheds on my OO Gauge layout in the near future and will hopefully be visiting in August so will be taking a batch of photos if anyone would like these I can link them here afterwards? One question I do have is has anyone found any good representative models for the various buildings please?
Thanks
Scott.
I scratch built the shed and coal gantry many years ago in N Gauge, but that was pre-digital photos.....I'll see if I can dig out some old 'proper' photos later. I had a look to see if there were any suitable kits around at the time, but didn't find any then - however we are talking 25 years ago now!
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11 hours ago, Adam FW said:
I’ve remembered why I don’t enjoy loco lining. This has taken far longer than it should have
Time consuming for sure, but looks good though!
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I bought a copy of The Chronicles of Boulton's Sidings a few months ago. Spoilt for choice for victorian locos in there!
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That's looking like a really nice model! I'm currently (paused at the moment) building an L class, and am part way through designing some etches for an old i-class. Love a good Manning Wardle!
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1 minute ago, Adam FW said:
Thanks John
I got it from 3Djake for around £275 (the week before it was listed as £260 and I felt like a fool for not ordering it then)
https://www.3djake.uk/elegoo/mars-pro
it was listed as a pre-order for release on 08/06/2020 but it was dispatched to me a few weeks early for some reason (not that I'm complaining). It's now listed for dispatch on the 26/06/2020 so I guess they sold out of their first batch. I believe there were some released back in Jan/Feb hence why there have been some listed for crazy prices on ebay
Be aware that my one came with a European rather than British plug so I had to swap part of the power lead with the one off my anycubic photon, also unlike the anycubic it doesn't come with a resin sample so you have to buy your own along with IPA and a vat to clean the parts in (sealed sandwich boxes work well, but a sistema 'pickle pot' is better and comes with a strainer, though large parts are a bit of a squeeze)
Some words of advice, prints will fail, accept it and these are hobby machines, they aren't perfect and they aren't fool proof
When you get your first printer don't rush in head first, take your time and learn how to set up your printer correctly (youtube tutorials are a godsend for this) and support your designs in the slicer software. Only print small numbers of pieces to begin with, it will seem slow but it's better than spending hours cramming everything onto one print and seeing a complete failure (it's also less expensive), doing it a piece or 2 at a time will help you to understand why pieces fail and how best to fix it, also consider supporting some pieces manually it helps to understand where to put supports yourself so you can identify where the auto-support function messes up and needs help. I find failures are nearly always due to the poor support material or setting up the print bed wrongly
Sounds like good advice - thanks!
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Adam, I've just been catching up with this thread - your models are superb! I've still got my L plates on when it comes to the CAD element of this at the moment, but I'm making progress. I intend (alright....been intending for a while without actually doing anything about it) to print parts for my 7mm scale models and then cast them into brass or bronze. The Mars Pro is on my shopping list, but I didn't think this was available (in the UK at least) yet? Can I ask where you got yours from?
John
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Looking good Tim! I built my first brass loco about 3 years ago. I made loads of mistakes and as you say, learning how to rectify them is part of the fun :-)
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Impressive! I've been on the verge of pressing the "Buy Now" button for a Mars for a little while now, but it has been put on the back burner due to a house move. Having got settled in, I'll soon be ready to go again. I'm looking at producing castable masters for small parts on small industrial locos at 7mm scale. Would you mind me asking what diameter the pulley wheels are? 3mm or so?
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11 hours ago, doilum said:
Build a small well insulated cabin at the end of the garage. Add windows and power. You are now set for the long haul.
Haha! Clearly our minds work in similar ways :-) Although I was thinking more along the lines of a large, well insulated cabin with a windows and power. There must be at lease 3 or 4 meters between the end of the garage and the end of the garden!
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If there was an award for the best travelled loco before it's even been finished Bamburgh would win it by a mile. Having been conceived in Brunei, brought back to the UK last summer, spent time at my parents house, and more recently in our rented house, Bamburgh is now on the move again. We have finally completed on buying a place which we are moving into in a couple of weeks time. Yep, that means she's being packed up again, although this time we are only going 5 minutes down the road.
Been a busy year with all the moving country/house. A young daughter, a new job, lots of house renovations and a wife who bizarrely wants to see me occasionally (??!!), are not things that lead to speedy modelling!
I didn't take any photos, but I have been playing around with making my own transfers for the lining. Need a bit more practice not getting them all twisted up as I take them out of the water, but things are looking promising.
I had had the loco stripped down for painting, but decided the best way not to loose parts in the move was to attach them to where they should be, so built it up again before packing.
Don't look too closely at the can interior. It was going quite well until I attacked it with cream gloss, without really having the right brush.....I now have quite a lot of remedial work to do. You live and learn as they say.....
I have been allocated a small part of the smallest room for my workbench, although I do have a 28ft garage to expand into when needed :-)
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The chassis and wheels have been given waft of black with the airbrush last night.
Highly unexciting, but just to prove I'm doing something! Didn't take any photos of the cab, but just need to paint the top half of the cab walls (interior) an off-white and then give everything a generous layer of soot before stating the green livery outside.
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Manning Wardle Old Class i
in UK Prototype Questions
Posted
Hi All,
I'm looking for some information on what the brake rigging/linkages under the loco would look like on a Manning Wardle Old Class i locomotive. I have drawings for what you can see on the outside of the loco around the brake blocks, but can't seem to find anything about what's underneath the loco. Any knowledge/pictures/diagrams/photos of your own models etc would be appreciated :-)
Thanks,
John