Garden Railway Forum

Lovely job, Peter..

I am 'supposed' to have built something for the National Show, on Saturday..
Spent a little on paint and glue, this weekend..

I am now at the usual 'fear of starting / failing' part..

I need a week of 36 hour days, this week.


Phil.P

Wot they said!
:
As well.

Phil.P

Looks to be some interesting industrial archaeology on that line?
The sort of place I would have gone poking about, in my youth.


Phil.P

What adhesive did you use when 'wrapping' the loco?

I find that thin plastic 'ripples' if you use solvent adhesive for this.

Thanks,
Phil.P

Rik, there is a lot to work on here.. Firstly, I assume (by the tone) that the apparent 'pulsed' rotation, is an artifact of frame-rate and video compression? These motors may quieten down, and run better, if run for an hour or so, in each direction. Different motors 'prefer' different PWM frequenci...

If you only have a short length of clear hose: With Garden-hose, a short length of copper plumbing pipe will often fit inside, or you can buy a pair of hose-joints. - The repair type are normally cheaper.. You can cut your clear hose in half, and join these to your regular garden hose. Voila! A 30m ...

Scrat wrote: ↑Fri Apr 12, 2024 9:41 amRust-Oleum?

Is that a 3D print, 'papered' in lino?


Phil.P

ge_rik wrote: ↑Wed Apr 10, 2024 4:39 pm That does look good! The curved members over the top look spot-on!

Rik

I think curved members come with age?


Phil.P

Rik,
If you want pictures of Berwyn, or 'the pigs' (the various orange painted loco's)..
These are at the WHHR, and I can get/take chapter and verse, for you.

Berwyn is now in the museum, for this season.

Thanks Rik, might be a possibility, but that photo is dire!

<Edit> Posted before seeing your second post.

Phil.P

Answering both of you..

That sort of idea, but more of a point to the back.

Draw a semi-circle, grab the centre of the curve at the back, and 'pull' it outwards a little..

https://images.app.goo.gl/TqaWYpMxtZSDt6K18

Phil.P

I have recently bought a railtruck kit, and it has a cross-piece with circular ends, with a hole for a LED. Think the older truck, with the lights sticking out either side of the bonnet. Does anyone know of a 3D print (possibly) of a parabolic housing, that these had? I just think it will lift the m...

The only 'numbered' screwdrivers I know of, are Post Office designations, but a 'Number 4' is a medium-width slot driver, with a longer shaft. - I would have thought this a little thick, in the blade, for this? I would think one of those cheap, small screwdrivers (used to be in a holder like a solit...

Yesterday (Easter Saturday) there was a meeting of the 'Irregulars' at WIGFA.. The loco was looked-over by Dave Mees (Abbeybach Engineering Services) and it was noted that the gas tank was a later Roundhouse model. There was a small split in the (thin-walled) silicon gas pipe and, as noted before, t...

I suggest you try to keep your track on the level. - Gradients tend to be bad-news, especially if you end up with a grade on a bend. Keep curves as generous as you can. If you have an idea of what you want to model, we can be a little more specific. - Narrow gauge, short-wheelbase loco's, you can go...

To answer the last two posts, in order: A 100 ohm pot getting hot, across the speaker output is a little worrying. - I don't have one of these cards to play with / work out the circuit, so advise caution, until 'we' can find more detail. The second query, is easier to answer : These cards are set up...

Just take a breath, Guys.... These cards are fed with a variable width servo pulse, not a logic '0' or '1', so the 1k or 4k7 resistor is not required. Adding resistors here will not reduce the sound-level. To add a volume control, you could add a 100 ohm pot across the speaker output, and the speake...

I would be a little wary of powering these Soundcards from the MR603 onboard regulator.

I draw your attention to the following extract from the MR603 manual:

"3.3V from the on-board regulator which can supply a max of 200mA"

Phil.P

Thanks for the comments..
More to think about.. I will possibly (weather permitting) be amongst other's with more knowledge on Saturday..

Phil.P

I don't think it was standard, and may be considered as a step too far, in authenticity?

I think I would leave it off.

Phil.P