Search found 731 matches

by Guy Rixon
Thu Apr 15, 2021 6:56 pm
Forum: Guy Rixon
Topic: Socially-distanced challenge: SER 27' close-coupled stock
Replies: 45
Views: 7578

Re: Socially-distanced challenge: SER 27' close-coupled stock

Richard, I've got a desktop UV source for curing the smaller prints. Most of the fittings were force-cured that way, but I've found that it tends to accentuate the curling up rather than fixing it. A more uniform light-source might improve matters. I haven't tried heat, but will consider it. In fact...
by Guy Rixon
Tue Apr 06, 2021 5:10 pm
Forum: Guy Rixon
Topic: Socially-distanced challenge: SER 27' close-coupled stock
Replies: 45
Views: 7578

Re: Socially-distanced challenge: SER 27' close-coupled stock

...Initial tests were favourable: the etched ends of the coaches are true half-ellipses, making it easy-ish to draw up the roofs. It was also possible to print in situ all the roof furniture, including the rain-strips (I hate adding these from separate strip), a better approximation of the gutters,...
by Guy Rixon
Tue Apr 06, 2021 2:18 pm
Forum: Guy Rixon
Topic: Socially-distanced challenge: SER 27' close-coupled stock
Replies: 45
Views: 7578

Re: Socially-distanced challenge: SER 27' close-coupled stock

Having sorted out the painting, lining and lettering to a standard I can live with ... IMG_8188.JPG ...I've turned my attention to the rest of the train, of which this is most but not all. IMG_8194.JPG Most of these coaches are fossil models that are being refurbished: one of the thirds I built in 1...
by Guy Rixon
Fri Mar 26, 2021 8:57 pm
Forum: Guy Rixon
Topic: Socially-distanced challenge: SER 27' close-coupled stock
Replies: 45
Views: 7578

Re: Socially-distanced challenge: SER 27' close-coupled stock

IMG_8186.JPG Lining: achieved. This is with the Bob Moore pen, Precision "LNWR lining tan" from a new can, and chemical coercion with airbrush cleaner to ensure paint flow. Jol reckons that a decent bow-pen does a better job and I'm sure that is right, given an expert user. The Moore pen ...
by Guy Rixon
Sat Mar 20, 2021 4:38 pm
Forum: Track and Turnouts
Topic: IPA Purity for Track Cleaning
Replies: 15
Views: 1042

Re: IPA Purity for Track Cleaning

The "alternative products" on the Amazon page suggested by John B. perhaps offer the answer. Most of the IPA products are at least 99% pure, and those sold at lower purity (aqueous solution?) are marketed as antiseptics. My guess is that 50%-70% pure IPA is fine for sterilisation but perha...
by Guy Rixon
Fri Mar 19, 2021 7:29 pm
Forum: Railway Buildings
Topic: Signal box walkway supports
Replies: 13
Views: 1095

Re: Signal box walkway supports

You could look at Scale Link Fretcetera. I think the exact product you want is not in their range, but there are various sets of trusses, in various scales, that might be cut up to get the shapes you want.
by Guy Rixon
Mon Mar 15, 2021 5:13 pm
Forum: Guy Rixon
Topic: D95 banana van
Replies: 29
Views: 5020

Re: D95 banana van

A quantum of progress after a long pause: I got the basic body-shape to print without distortion. This is actually a big step forward. IMG_8179.JPG Previously, it was warped in various ways. Now, everything seems to be straight, and the interface to the chassis has come out cleanly. The support line...
by Guy Rixon
Sat Mar 13, 2021 10:45 pm
Forum: Guy Rixon
Topic: The LNWR brown train
Replies: 33
Views: 8008

Re: The LNWR brown train

Very good questions, Will. I didn't log the time to make the CAD for this thing, but I think it was under 15 hours spread over five days, and that produced three slightly different versions. Having dimensioned sketches for everything made it a lot faster, and the shapes aren't particularly complex. ...
by Guy Rixon
Sat Mar 13, 2021 4:44 pm
Forum: Paul Willis
Topic: Adventures in the third dimension
Replies: 39
Views: 2666

Re: Adventures in the third dimension

Richard, visually, the print quality from my Mars Pro printer (the same one that Paul is setting up) is comparable to Shapeways SFDP on the fine detail and somewhat better on flat surfaces. In the high-resolution version of the photo I posted today I can see a ridged pattern on the flat tops of the ...
by Guy Rixon
Sat Mar 13, 2021 3:46 pm
Forum: Guy Rixon
Topic: The LNWR brown train
Replies: 33
Views: 8008

Re: The LNWR brown train

IMG_8176.JPG Brake-cylinder assemblies for the remaining none-brake coaches of the set, plus one spare in case I decide to make it up to nine coaches. These are models that I've previously used at Shapeways but now I can print them at home. I need to do one with a handbrake linkage for the brake-2nd.
by Guy Rixon
Fri Mar 12, 2021 12:05 pm
Forum: Paul Willis
Topic: Adventures in the third dimension
Replies: 39
Views: 2666

Re: Adventures in the third dimension

Another factino that may help specifically with the Mars Pro and its particular design of build plate: wide things stick better than narrow things. The print that prompted the refilming was a batch of wagon brake-levers, printed on supports with skates. The base layers came out about 30 mm long by p...
by Guy Rixon
Thu Mar 11, 2021 7:20 pm
Forum: Paul Willis
Topic: Adventures in the third dimension
Replies: 39
Views: 2666

Re: Adventures in the third dimension

The old film had picked up a few scratches, so I was getting ready to change it, just in case they were affecting the print quality. Then I had a failed print stick very firmly to the film and in removing it things got a bit wrecked. Essentially, every time something sticks to the film instead of th...
by Guy Rixon
Thu Mar 11, 2021 12:51 pm
Forum: Paul Willis
Topic: Adventures in the third dimension
Replies: 39
Views: 2666

Re: Adventures in the third dimension

I've just changed the FEP film on my Mars Pro for the first time. It's both easier and harder than I expected: easier, because the tensioning is less of a problem than I expected; and harder, because the official instructions leave out some information. I set down some detail here so that nobody els...
by Guy Rixon
Thu Mar 11, 2021 8:58 am
Forum: Serjt-Dave
Topic: LMS D1735 Brake Third
Replies: 37
Views: 2757

Re: LMS D1735 Brake Third

They've come out very nicely, Vlad. Looks like you've shaded the clothes exceptionally well. But how much is shading and how much from the natural contours of the figures?
by Guy Rixon
Mon Mar 08, 2021 9:26 am
Forum: Coaches and NPCS
Topic: Hornby 6 wheelers
Replies: 11
Views: 806

Re: Hornby 6 wheelers

Does anybody know if the 6-wheelers run well? Three axles over a ~30' length is not an easy thing to get right, even with big flanges.
by Guy Rixon
Sat Mar 06, 2021 4:29 pm
Forum: Coaches and NPCS
Topic: Hornby 6 wheelers
Replies: 11
Views: 806

Re: Hornby 6 wheelers

The panelling is not very Wolverton in either range, except for Hornby's full-brake. The drawing of Hattons' "LNWR" coach shows mouldings painted over white to suggest Wolverton panelling, so at least they're trying.
by Guy Rixon
Sat Mar 06, 2021 1:00 pm
Forum: Guy Rixon
Topic: The LNWR brown train
Replies: 33
Views: 8008

Re: The LNWR brown train

IMG_8170.JPG The repainted brake-3rd and the all-3rd together. The repainting is not wonderful but definitely better than the original (see picture at the top of this thread). This is the level of consistency between coaches I can get with this method. I think it's just about OK for representing co...
by Guy Rixon
Wed Mar 03, 2021 5:39 pm
Forum: Guy Rixon
Topic: The LNWR brown train
Replies: 33
Views: 8008

Re: The LNWR brown train

Thanks chaps. The teak recipe is described in a post on RMweb if anybody wants to try. It uses only acrylic paints, c.f. Mike Trice's method with oil paints. The LNWR 3rd is the second vehicle to receive this formulation. I've stripped my LNWR brake-3rd to repaint it in this way, the painting pictur...
by Guy Rixon
Tue Mar 02, 2021 10:38 am
Forum: Guy Rixon
Topic: The LNWR brown train
Replies: 33
Views: 8008

Re: The LNWR brown train

IMG_8167.JPG The full-third of the 1897 stock, now with decorated body. I found a way to paint teak that works for me, and is a bit less "meh" than the finish on the brake-third. Also, some transfers for the class numbers on the doors that are reasonably close to reality. Since I don't ne...
by Guy Rixon
Mon Mar 01, 2021 12:30 pm
Forum: Starting in P4
Topic: Etched kits, techniques - videos?
Replies: 16
Views: 1341

Re: Etched kits, techniques - videos?

When I switched, a few years ago, from normal craft-knife to a chisel-bladed knife, I found that I was cutting much more neatly and with less distortion. Building on Will's technique-not-tools point, there's something subtle about the vertically-applied knife that helps. The blades don't last long b...
by Guy Rixon
Sat Feb 20, 2021 11:38 pm
Forum: Paul Willis
Topic: Adventures in the third dimension
Replies: 39
Views: 2666

Re: Adventures in the third dimension

At this level would the quality be sufficient to print something like a 4mm wagon buffer for example? Yes. The buffers on my recent SECR stock were printed on a Mars Pro. The surface finish is slightly better than I can get at Shapeways --- less residual texture --- but the holes for the buffer ram...
by Guy Rixon
Sat Feb 20, 2021 10:08 pm
Forum: Paul Willis
Topic: Adventures in the third dimension
Replies: 39
Views: 2666

Re: Adventures in the third dimension

If you're curious about the level of detail, look at the lettering on the front of the axleboxes in this post on RMWeb. It's 7mm but still... : https://www.rmweb.co.uk/community/index.php?/topic/142773-anycubic-photon-and-mono-x-3d-dlp-printers/page/20/&tab=comments#comment-4311502 Lettering li...
by Guy Rixon
Sat Feb 20, 2021 10:00 pm
Forum: Paul Willis
Topic: Adventures in the third dimension
Replies: 39
Views: 2666

Re: Adventures in the third dimension

At this level would the quality be sufficient to print something like a 4mm wagon buffer for example? Yes. The buffers on my recent SECR stock were printed on a Mars Pro. The surface finish is slightly better than I can get at Shapeways --- less residual texture --- but the holes for the buffer ram...
by Guy Rixon
Thu Feb 18, 2021 1:26 pm
Forum: Guy Rixon
Topic: Socially-distanced challenge: SER 27' close-coupled stock
Replies: 45
Views: 7578

Re: Socially-distanced challenge: SER 27' close-coupled stock

27ft-handbrake.png The handbrake wheel was high on the end wall of the coach, driving a vertical shaft through bevel gears. The bottom of that shaft drove a crank under the headstock and that crank pulled a rod connected to the centre crank (or at least to some other crank on the same shaft as the ...
by Guy Rixon
Wed Feb 17, 2021 10:35 pm
Forum: Guy Rixon
Topic: Socially-distanced challenge: SER 27' close-coupled stock
Replies: 45
Views: 7578

Re: Socially-distanced challenge: SER 27' close-coupled stock

The brake arrangements have been sorted out. The brake coaches have this:
pull-pull-rigging.png


All the other coaches have this:
push-pull-rigging.png


I have products for both arrangements on Shapeways and will modify my model when the test-print for the new one comes back.

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