My T gauge adventure

Post details of your T gauge layouts and the progress you are making.
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SmallCentral
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Re: My T gauge adventure

Post by SmallCentral »

Shapeways :!:Always ........

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SmallCentral
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Re: My T gauge adventure

Post by SmallCentral »

Shapeways :!:Always ... is not a forum ...it's a market :D :D :D

NeilM
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Re: My T gauge adventure

Post by NeilM »

I did manage to get some of my models ready for printing before the weekend was out - but not as many as I would have hoped.

I have two variations of a container wagon which are in for their first print - have high hoped for those so hopefully they will work out!

Also I have recreated my test chassis for a 4 wheel wagon. I had create one before, but lost it after a computer crash. I also created a quick test body for a coal wagon which looks OK in the rendering. I failed totally in my idea to create an 8 wheel chassis as a single model including the bogies/trucks with the chassis. The model allows separate interlocked components, but by the time it had been exported and sent to shapeways it has all joined itself up into a single piece - thus creating a chassis that will not go around corners!

Did not manage to get the building I had in mind done, and the Austin 7 was only partly done, but I still added that to the batch to see how it print with what I have done so far.


My order is due back around 12-Oct, so will report back then how successful I have been.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

NeilM
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Re: My T gauge adventure

Post by NeilM »

I have just got my complete container wagon prints back today. Initial checks are positive, the print looks good and the coach chassis (cut down) looks to fit right in as it is supposed to.

I will not photograph these until I have either washed and primed them, or cleaned them in white spirits, because I have tried this before and the photographs of the raw uncleaned prints just do not show any detail.

Also in this batch was my test chassis, which I will check later when I find where I have put the wheels. As well I did a test print for an four wheel open coal wagon which looks good - alas not part of the chassis test, so this will need the two combining to create a finished working model - so more time needed for this one.

Finally I included some road vehicles, a test print for an Austin 7 plus reprints of my Dodge Charger with added detail - boy, does that Austin look tiny next to the Dodge Charger!
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

NeilM
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Re: My T gauge adventure

Post by NeilM »

I am aware that I have not made an update for a while and left you all hanging on the container wagons.

Quick update is that the prints were the right size, in that the chassis do fit and they look OK on the track. I had hoped to get some photos up so that you could see how they looked - initially get the photos as cleaned castings before I started painting them - but as usual I have not even got the initial photos done yet.

I have got the models on Shapeways now in two versions, one with a centre sill so that the profile is prototypical, and one without so there is a space to add the metal weight from the coach chassis. This would all make a lot more sense with photos - I will try and get something loaded up soon.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

NeilM
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Re: My T gauge adventure

Post by NeilM »

OK, as promised, the photos of my latest model, a container wagon with 3 x 20ft containers. Not painted yet, but cleaned so that the prints will at least show up properly. NB the gap between the containers does show up better than it appears in the photo, and I think painting this gap with thinned black paint before painting the containers will create the correct effect.

These were designed to use the 19m coach chassis because that is what I had to hand at the time. I would think that it could use the adjustable chassis if it was similarly cut down, but I have not tested this myself as I do not have one of these chassis to hand.
For Forum - Container wagon 3q.jpg
For Forum - Container wagon 3q.jpg (180.86 KiB) Viewed 11476 times
I made two versions of this wagon. Spot the difference......
For Forum - Container wagon A.jpg
For Forum - Container wagon A.jpg (178.97 KiB) Viewed 11476 times
For Forum - Container wagon B.jpg
For Forum - Container wagon B.jpg (196.26 KiB) Viewed 11476 times
The only difference between the two is the centre sill. The first photo shows this in place as on the prototype, so the model looks correct in profile. The reason it is omitted on the second version is that this leaves a clear opening through the chassis to the inside of the container, this being large enough to take the weight from the coach chassis, see the photo below for a comparison of the wagons from below, with the weight in place on the rear wagon.
For Forum - Container wagons underside.jpg
For Forum - Container wagons underside.jpg (179.53 KiB) Viewed 11476 times
My next job will be to get some painted and, after buying more chassis, try and assemble a long train. These models are in my shop now if anybody wants to try them.

The next model I will be working on will be the British 4 wheel wagons that I have been testing (just a test of a chassis so far). This will include some thoughts on how to include a simple coupler within the print. Watch this space - but as always, do not hold your breath because I never seem to get anything done as quickly as I expect to.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

Slarge
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Re: My T gauge adventure

Post by Slarge »

Impressive, loving the models, need to finish my traxx loco to pull a few of those.
Just a thought, if I may be so bold... Have you considered making a 2part print so the central cill can be glued/clipped/fixed in after, this could be aligned by having the bogie mounting as part of the print so instead of chopping up coach chassis you could use the bogies tgauge.com sell as spares?
Will you be making a 30ft tanker container also?
Kind regards
Slarge

NeilM
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Re: My T gauge adventure

Post by NeilM »

Hi Slarge,
Slarge wrote:Impressive, loving the models, need to finish my traxx loco to pull a few of those.
Just a thought, if I may be so bold... Have you considered making a 2part print so the central cill can be glued/clipped/fixed in after
I had considered this early on, but must confess I forgot about it later in the process! Making an extra part was just one more thing that could have gone wrong, but I may revisit that and try create the part to add to the existing model without the sill.
Slarge wrote:this could be aligned by having the bogie mounting as part of the print so instead of chopping up coach chassis you could use the bogies tgauge.com sell as spares?
Again, was just making it the easiest way initially - both for designing the model, and for getting it running once printed. I have been experimenting with creating my own bogies. Nothing as yet on this, but once I have my 4 wheel chassis working then I am hopefully the logic would work for bogies as well. If this works out then I could create a model that would just need wheels and couplers (and have a few ideas on the latter as well).
Slarge wrote:Will you be making a 30ft tanker container also?Slarge
I think a tanker would be difficult. Not the tank, that would be the easy bit, but the rectangular framing that surrounds it. Because that would have to be so much over scale to be printed I suspect that it would visually spoil the whole thing. A brass etching would possibly be the way to got, but I have no experience in that field.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

Slarge
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Re: My T gauge adventure

Post by Slarge »

All fair points Neil :)
I still find one of the fascinating things about "Tgauge" and 3D printing is how damn small it is (and how fiddely it is!) I have taken a somewhat liberal view to scale caring between 1:480 (typically length) to 1:450 (typically width and height) given the origins of the original models. After all its context that matters.
Loving your work.
Slarge

NeilM
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Re: My T gauge adventure

Post by NeilM »

Again, no updates from me in a while, but reading and then replying to the Lack of Motivation thread really should get me moving again...

I am planning to visit Wakefield model railway exhibition at the weekend. That is always a good show, so I do hope to get inspired there. I know this will not be just T gauge inspiration, I do model in other scales and I know that there are 2 good American switching layouts there which I want to see - if T gauge points and couplers were up to the job then I would try on of these in T, but alas that is for larger scales at the moment. (I do have some ideas on couplers which I would like to test out, but I am not going to even attempt to build my own points!)

About all that I have actually done on my layout is make a few more pencil marks on the baseboard! On the 3d printing front I am getting on with an Austin 7. This currently has rear wheels but not yet any front ones. Adding wheels and wings to that style of car is tricky in sketchup, but if I manage to crack it then I will put those for sale as they are one vehicle that would work with the steam outline models that other are developing.

Also pressing on with my plans for 4 wheel wagons. I know these have been done already, but would still like to do my own. I am trying to design in a coupler such that the only extra purchase needed will be wheels. Hopefully I should have a test ready for my next Shapeways order.

Also, still running ideas round my head for a PWM controller. Just wondering about using an Arduino. These support PWM within the programming language, although I am not sure if the frequency will be high enough. They are cheap enough to buy, so I may just order one and try it.

Not much else at the moment, but if I do get the inspiration from the exhibition next weekend then hopefully you may get to see some progress and a start of some scenery on my layout.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

martink
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Re: My T gauge adventure

Post by martink »

NeilM wrote:Also, still running ideas round my head for a PWM controller. Just wondering about using an Arduino. These support PWM within the programming language, although I am not sure if the frequency will be high enough. They are cheap enough to buy, so I may just order one and try it.
Lots of options here - even a simple 555 timer circuit is perfectly adequate. The commercial product is a very low frequency unit - just 100Hz - and much to my surprise that does seem about optimal for these locos. That sort of frequency is dead easy to generate from an Arduino.

NeilM
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Re: My T gauge adventure

Post by NeilM »

Thanks for that info, good to know I have a chance of success.

As there are other things I have in mind for an Arduino as well I will get one and give it a try. I already have the circuits and coding in my head for two controllers, one totally digital with push button directions and acceleration/deceleration control, and also one with a traditional analogue input which I may create to work centre off rather than use a direction switch (in the style of the H&M old duette from the 70's if not the 60's that I used for many years across many layouts, and do still own, just to see if I can do it).
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

NeilM
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Re: My T gauge adventure

Post by NeilM »

So, no progress on my layout...but I have managed to compete my Austin 7 model. Amazing how small this does come out - having added a painting handle so that I have a chance of holding it the effect is of far more handle than model.

This was, as usual, a slow triumph over try to add too much detail on a small model v sketchup fighting back. One day I will learn not to add detail that will never be seen because it is too small!

Not a brilliant image. snapped this the screen, and Shapeways does not make a good effort of displaying small models on long sticks.
For Forum - Austin 7 001.jpg
For Forum - Austin 7 001.jpg (4.32 KiB) Viewed 8118 times
I will now create a van bodied version, possibly also an open top tourer version. Once done I will add test prints to my next batch, and if OK make them available on my shop.

This will be at least one vehicle that can be used with steam outline models. I also have a plan for a Bedford OWB coach, hope to try thus at some time, but please do not hold your breath.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

NeilM
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Re: My T gauge adventure

Post by NeilM »

There is not much activity at all on the forum at the moment, so to add at least one post....

I have modified my Austin 7 saloon model in sketchup (after having plugged the hole in the bonnet which was still showing in the photo above) to convert it to a van.

Shapeways rendering still does not like 'models on sticks' even after shortening the handle, so tricky to get a view without the roof being missed off.
For T gauge forum - Vehicle Austin 7 Van.jpg
For T gauge forum - Vehicle Austin 7 Van.jpg (7.84 KiB) Viewed 8041 times
This has passed the Shapeways initial tests, so I will add test prints of this and of the saloon to my next batch.

I am also trying some coloured models using Full Colour Sandstone, however these are tricky due to the minimum unsupported wall of 0.3mm, as the boots and bonnets of cars in this scale can be less than that in height so fail the initial checks. Will stick with this and see what I can manage, as I know from other posts that it has been done.
Neil

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NeilM
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Re: My T gauge adventure

Post by NeilM »

No progress on my layout as yet - unless you count making some pencil marks on the foamboard whilst I work out where the canal is going to go.

I have however found my way back on to the computer and have completed my trio of Austin 7s.
For Forum - Austin 7 Collection.jpg
For Forum - Austin 7 Collection.jpg (16.85 KiB) Viewed 7976 times
I may try an alternative version for the open top model - removing the windscreen and instead just having a slot in the bodywork. Then once printed, cleaned and painted I could add the screen from a small rectangle of clear plastic. Not sure if this would give a better effect than a fully printed model, but I plan to try both to find out. This will prove the method ready for my Mini Moke, Kubelwagon, Amphicar...........

Just need to get enough of a batch of models ready so that I can put in an order with Shapeways and see how they actually look once printed.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

NeilM
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Re: My T gauge adventure

Post by NeilM »

Just realised I had shown my small station building as printed, but had not uploaded a photo after it was painted.

All I need to do now is to complete the layout to put it on......

For Shapeways - Station Building.jpg
For Shapeways - Station Building.jpg (218.76 KiB) Viewed 7838 times
My next Shapeways order will include the Austin 7s in my previous posts (it has been sometime - I was waiting for a free postage offer, but none seems to be coming along so will just have to bite the bullet and get the order in). Also I plan to try some models in full colour sandstone. This is not as detailed as FUD, but if it works out they will not need painting. I am not expecting too much, but going to give it a try anyway.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

NeilM
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Re: My T gauge adventure

Post by NeilM »

Again, some time since my last update.

Just a little progress on my layout, with the upper part of the board cut nearer to size ready for assembly (I am using foam board so using a lower and upper board for strength with the lower full size and the upper cut back for cuttings, under bridges, canals etc.). I have just planned out where a canal will got under the railway - it never ceases to amaze me how much I can end up designing (over designing?) a small layout, where on a larger one I would have just got on with building it working things out as I went.

What I have done is placed an order with Shapeways including all the items I had been batching up ready to make a large enough order to balance out the postage charge, and ended up waiting so long that there was eventually a free postage offer.

This order included all my Austin 7 variants, a number of different 4 wheel wagons, a test print of a not yet complete war time bus (cost not much extra to add it to the order even though I could not get it finished - just to see how what I have done so far will actually print). I have also tried some models in full colour sandstone. I have never printed any of these before, and the minimum wall thickness is quite limiting for T, but thought I would give some a try anyway.

It will be a while yet before I get anything back, but will provide an update on what worked and what did not once I do.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

NeilM
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Re: My T gauge adventure

Post by NeilM »

I did get my last order from Shapeways, but then I was away on holiday so did not have any time to do anything with it.

I have tried to photograph what I ordered, but the small pieces do seem to be challenging my camera. I will stick at it and try and get some decent photos as what I have got looks to have worked.

The 4 wheel wagons look good - but I just need to remember where I have put my stock of wheels so that I can check them. However now that there looks to be a usable coupler on the horizon I may need to redesign them anyway to be able to use it! All we need now are usable points and we will be there.

The pre coloured items using Full Colour Sandstone worked to a point. I think T scale is at the limit of what can be printed. I could not find specifications for how accurate the printing would be so just decided to try it anyway. Some of my cars have windows printed and others do not. However so long as they are not displayed too close to the foreground I think they will be up to the job. I also added red telephone boxes to this order, again these are on the edge of what will print, but the effect should still be there, and lets face it if I had designed them so I could piant them then they would have just been all over red at that size.

The Austin 7s look good, with all of the details have worked out from design to print, so just need to clean and paint these. These are the one that were really testing my camera, but hopefully when painted they should photograph better.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

NeilM
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Re: My T gauge adventure

Post by NeilM »

These photos have been on my camera ages waiting to be downloaded. Although I have started painting some of these models now, I thought it best to show what I have rather than waiting for me to complete them and get round to photographing/downloading etc all over again.

These are just a few of the models from my latest batch to Shapeways, so more photos to come later

Firstly 3 of my Austin 7 models. Show here are uncleaned prints as delivered, so they will still have some of the wax on them used in the printing process, so not as clean here as they are now that I have cleaned them. This shows the open top, saloon and van. Also shown is my Land Rover ambulance, which I have included to give a sense of scale as to just how small these models are.
For Forum - Austin 7 002.jpg
For Forum - Austin 7 002.jpg (254.75 KiB) Viewed 7599 times

This image is of a different idea that I had tried. For this model I did not clreate the screen as part of the print, but instead have left just a slot in the model so that I can add a screen cut from clear plastic sheet. I have not yet had chance to test if this will work. Because the print did not include any 'glazing' I have cleaned this one in white spirits, which turns the print white. This does allow the interior detail to show. Yes, seats inside a convertible in 1/450 scale! Well, it seemed worth a try, and does look to have worked out.
For Forum - Austin 7 003.jpg
For Forum - Austin 7 003.jpg (111.02 KiB) Viewed 7599 times

This last one of the current images was just me including an incomplete model with the batch for printing as it only added a few pence to the cost. There was no chance of me finishing this model before the offer date fro free postage expired, but it seemed worth printing what I had just to see how it would actually turn out - which looks to be OK.
The model by the way is a Bedford OWB bus, dating from the time of WW2. Just need to complete the front end and add some wheels.
For Forum - Bedford OWB 001.jpg
For Forum - Bedford OWB 001.jpg (102.81 KiB) Viewed 7599 times

I will post other images later of my 4 wheel British rolling stock, and also my pre-coloured cars and British red telephone box.
Neil

T gauge items in my Shapeways shop http://www.shapeways.com/shops/t450

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Nutter
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Re: My T gauge adventure

Post by Nutter »

Interesting all you need now is the steam rolling stock
Mike
DON'T knock it at least I am trying to do something, with only one good hand.

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