Search found 3773 matches

by ge_rik
Sat Mar 06, 2021 7:37 am
Forum: 3D Printing
Topic: Secundus
Replies: 12
Views: 435

Re: And now for something else

Main chassis has now been printed and papered, yes papered. A good friend of mine papers all his 3d models before he paints them and credit due, they don't look like 3d printed models as the finish is perfect. He showed me how best to do this and I had a go on the main chassis today (whilst chasing...
by ge_rik
Thu Mar 04, 2021 10:20 am
Forum: Projects
Topic: First scratch-build - signal box
Replies: 10
Views: 105

Re: First scratch-build - signal box

Folks thanks for your kind and helpful comments. My intention is to leave my buildings outside during the warmer months of the year but to store inside during the winter. The foam board is of the paper-covered type; some trials I undertook beforehand suggested it actually becomes a stronger materia...
by ge_rik
Wed Mar 03, 2021 10:45 pm
Forum: Projects
Topic: First scratch-build - signal box
Replies: 10
Views: 105

Re: First scratch-build - signal box

That's a beauty! Certainly a lot more accomplished than any of my first efforts. I've used ordinary acrylic paints on my buildings - even the ones which stay outside all the time - but they do fade. I've had more success with exterior house paint, but it can be a bit thick for the finer details. Not...
by ge_rik
Wed Mar 03, 2021 10:19 pm
Forum: Garden Railway Technical Help & Advice
Topic: Weak Bachmann Lyn motor
Replies: 22
Views: 327

Re: Weak Bachmann Lyn motor

philipy wrote:
Wed Mar 03, 2021 7:06 pm
Well done Rik. That looks fine ( weird as an 0-4-0 ) but fine. :D
It reminds me of one of those Hornby tinplate clockwork locos which I used to have running at full pelt on the sitting room carpet as a kid .... My first train set! :D

Rik
by ge_rik
Wed Mar 03, 2021 6:33 pm
Forum: Garden Railway Technical Help & Advice
Topic: Weak Bachmann Lyn motor
Replies: 22
Views: 327

Re: Weak Bachmann Lyn motor

Well folks! Thanks very much for all your kind thoughts, suggestions and contributions - both in words and, in one case, in posting me a replacement motor - which I maybe won't need to use. I think I have identified the problem and fixed it (let's hope that's not famous last words!). By cleaning eve...
by ge_rik
Wed Mar 03, 2021 10:55 am
Forum: 3D Printing
Topic: Can you tell what it is yet?
Replies: 32
Views: 628

Re: Can you tell what it is yet?

I tend to use the dome shape in TinkerCAD. My default value is 1.5mm dia which gives 0.75mm height

Rik
by ge_rik
Wed Mar 03, 2021 10:27 am
Forum: 3D Printing
Topic: Festiniog Railway Coaches 15 and 16
Replies: 7
Views: 108

Re: Festiniog Railway Coaches 15 and 16

This is not a criticism in any way, but I notice the the diagonal print marks across the panels. This is something I always seem to get and so far have not found a way to stop it. I've always assumed it is to do with speed and distance of retraction whn the nozzle moves across, but no amount of fid...
by ge_rik
Wed Mar 03, 2021 10:18 am
Forum: Garden Railway Technical Help & Advice
Topic: Weak Bachmann Lyn motor
Replies: 22
Views: 327

Re: Weak Bachmann Lyn motor

Have you tried the Bachmann spare parts page? A quick search gave me this... https://estore.bachmanntrains.com/index.php?main_page=index&cPath=69_597&sort=20a&page=2&zenid=hj4vt0i3avh3cq773vmdta3l11 I think I mentioned before that I used two of the motor blocks in my red Garratt with no problems. I...
by ge_rik
Wed Mar 03, 2021 9:06 am
Forum: Garden Railway Technical Help & Advice
Topic: Weak Bachmann Lyn motor
Replies: 22
Views: 327

Re: Weak Bachmann Lyn motor

If the worm wheels are standard size, then maybe a motor with smaller diameter worms might give more thrust. I'm hoping that assumption is valid. With worm gears, the gear ratio is dependent on the number of starts of the screw, not the diameter of the worm. E.g. a single start worm used with a 40 ...
by ge_rik
Tue Mar 02, 2021 6:55 pm
Forum: Garden Railway Technical Help & Advice
Topic: Weak Bachmann Lyn motor
Replies: 22
Views: 327

Re: Weak Bachmann Lyn motor

Thanks chaps. I think my next option is to design and 3d print a new housing for the motor block. If the worm wheels are standard size, then maybe a motor with smaller diameter worms might give more thrust. I'm hoping that assumption is valid. The most obvious difference between the Bachmann block a...
by ge_rik
Tue Mar 02, 2021 3:24 pm
Forum: Projects
Topic: Cattle wagon for the E&D
Replies: 7
Views: 150

Re: Cattle wagon for the E&D

It does look kinda cute. As Andrew says, perfect for sheep.

Rik
by ge_rik
Tue Mar 02, 2021 1:45 pm
Forum: Garden Railway Technical Help & Advice
Topic: Weak Bachmann Lyn motor
Replies: 22
Views: 327

Re: Weak Bachmann Lyn motor

Hi Graeme
It says it's a Buhler motor - unless it's a clever clone.
S1760015.JPG

Rik
PS - You can see from the bulge in the side of the motor block that the motor (or its predecessor) has, in the past, got somewhat warm......
by ge_rik
Tue Mar 02, 2021 12:09 pm
Forum: Garden Railway Technical Help & Advice
Topic: Weak Bachmann Lyn motor
Replies: 22
Views: 327

Re: Weak Bachmann Lyn motor

.... the wheels are mounted on stub axles with a square profile designed to fit into a nylon moulding which includes the worm wheels. Not sure if I will be able to use them with a different type of gearbox arrangement. :? Here's that the insides look like Merged_document.jpg Might be tricky to moun...
by ge_rik
Tue Mar 02, 2021 11:56 am
Forum: Garden Railway Technical Help & Advice
Topic: Weak Bachmann Lyn motor
Replies: 22
Views: 327

Re: Weak Bachmann Lyn motor

Further to my previous posts - I've now tried another test run and discovered, curiously, that it runs better in reverse than going forwards. In reverse it's almost but not quite passable - but going forwards, skin and rice pudding springs to mind. I've removed the motion to eliminate that as a poss...
by ge_rik
Tue Mar 02, 2021 11:54 am
Forum: 3D Printing
Topic: Festiniog Railway Welsh Pony - 3 D printed
Replies: 52
Views: 2334

Re: Festiniog Railway Welsh Pony - 3 D printed

Excellent work all round. Can't wait to see it in action

Rik