Points - the achilles heel

The three Ts. Lift the lid on the secrets of how you do things so others can have a go.....
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Nutter
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Re: Points - the achilles heel

Post by Nutter »

hugwa wrote:Hi everyone.
This is my pre-prototype of #6 switch, milled in modelling wax to verify dimensions.
Designed to be joined with flex using FlexiTrack joiners, with tie spacing and dimensions similar to Eishindo's flex.
Maybe it will work out...
T_No6_01s.jpg
Looks interesting. Still getting to grips trying to build Zm points at 4.5mm gauge using a Fast Tracks Jig.
Don't see why it shouldn't work providing there are gaps so you don't get shorts.
Have seen the milled base as well.

Have looked at Ivan's 3D printed base as well and will get more involved in this when I have a fully functional Zm point using code 40 rail.
Mike
DON'T knock it at least I am trying to do something, with only one good hand.

hugwa
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Location: Warsaw, Poland

Re: Points - the achilles heel

Post by hugwa »

Friday report :)
After four frustrating attempts mounting tool is finally milled and it seems to work.
T_No6_03.jpg
T_No6_03.jpg (252.4 KiB) Viewed 9754 times
Picture shows my idea of making frog, points and guard rails - they are etched from nickel silver plate.
Hubert

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dkightley
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Re: Points - the achilles heel

Post by dkightley »

Now that is looking really nice...

No. Not nice.....Brilliant! :lol: :lol:
Doug Kightley
Webmaster here and volunteer at the National Tramway Museum http://www.tramway.co.uk

hugwa
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Re: Points - the achilles heel

Post by hugwa »

Little progress. Some work left to do - a throw bar under switch points, wires, isolation gaps... Not much, but not easy.
T_No6_04.jpg
T_No6_04.jpg (87.49 KiB) Viewed 12840 times
T_No6_05.jpg
T_No6_05.jpg (66.69 KiB) Viewed 12840 times
Hubert

henningz
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Re: Points - the achilles heel

Post by henningz »

Excellent work, I hope it will work as fantastic as it looks like. Would be a great achievement in combination with flexi track :)
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mattinair
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Re: Points - the achilles heel

Post by mattinair »

How totally neat! .......

ivanf
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Re: Points - the achilles heel

Post by ivanf »

looks very good. :)

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Nutter
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Re: Points - the achilles heel

Post by Nutter »

Drifting slightly on the topic of points, I am going to need to build a passing loop and wondered if I will be wasting my money buying the one way units or should I go to the proper ones. Stock powered by 19M chassis - only 2 autorails per train.
Need to be able to have trains pass each other on what would otherwise be a single track line. Wiring and isolating sections not a problem.
Mike
DON'T knock it at least I am trying to do something, with only one good hand.

henningz
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Location: Barsinghausen (It's near Hanover), Lower Saxony, Germany

Re: Points - the achilles heel

Post by henningz »

Nutter wrote:[...] and wondered if I will be wasting my money buying the one way units or should I go to the proper ones. Stock powered by 19M chassis [...]
One-way-turnouts have a space of about 33 or 34 mm without power supply (as measured by photo here, turnout length = 90 mm). The 19M chassis has a bogey spacing of 28 mm and an axle spacing of 4.5 mm, that's 32.5 mm from first to last wheelset. I guess it will stop or stagger at slow speed.
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barneyadi
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Re: Points - the achilles heel

Post by barneyadi »

Has there been anymore progress with points? What hugwa was doing looked brilliant, did he get any further?

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dkightley
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Re: Points - the achilles heel

Post by dkightley »

At the GCR show yesterday, I was shown a trial T gauge custom point that had been created by a member of the Nottingham Model Railway Society as an exercise in trackwork:
Img_2041_red.jpg
Img_2041_red.jpg (95.48 KiB) Viewed 6751 times
The switch changes the electical connections to the various areas of the pointwork...and changes the points!

I'll make sure there are updates if there's any progress.
Doug Kightley
Webmaster here and volunteer at the National Tramway Museum http://www.tramway.co.uk

mattinair
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Location: Sebastopol California

Re: Points - the achilles heel

Post by mattinair »

Wow!.....Given that there are dummies like me who would be willing to pay hundreds of dollars (pounds etc.) for this....Always hopeful....

Reith01
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Re: Points - the achilles heel

Post by Reith01 »

A beautiful piece of trackwork.....and an absolute dread that I may have to do some work down the line. I'm having trouble with Eishindo points but then I'm a beginner, have a bit of investigation to do. A succession of points to provide sidings isn't a nice prospect!

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Nutter
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Re: Points - the achilles heel

Post by Nutter »

Isolating the diverging tracks on points for passing loops and siding can be accomplished by simply removing the plate underneath and taking the springs out.
OK you then have to work out the wiring for the inner two rails but it saves cutting the rail and buying the isolating tracks if using the set track pieces.
Mike
DON'T knock it at least I am trying to do something, with only one good hand.

Reith01
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Re: Points - the achilles heel

Post by Reith01 »

That's a great idea! Wow, thanks. That solves the problem of isolating in a stroke! I've soldered leads to every piece of flexitrack so far so powering isn't a problem.
Some automation will come later and I didn't want to have to drill holes through the base once the scenic work starts. I'm not yet sure how many sections the thing will be divided into so I can adapt the wiring accordingly.

Cheers,
Reith.

servewouters
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Re: Points - the achilles heel

Post by servewouters »

Any news on this?
I'm going to try it myself this way (see attachment).
Once I have a fully functional point, I can start making a lay-out :)
Attachments
20200312_195328 kopie 2.jpg
20200312_195328 kopie 2.jpg (1.08 MiB) Viewed 1406 times

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dkightley
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Re: Points - the achilles heel

Post by dkightley »

The guy who did this never contacted me again. I may try and re-establish contact.

I see you've used pcb...and I assume CNC milled the material away to give sleepers, and etched the copper back.

I do have the track geometry sorted so I can 3D print sleepers with a built-in trackbed sufficient to allow rail to be threaded in from one end. I've just never had the time to do anything with it.....
Doug Kightley
Webmaster here and volunteer at the National Tramway Museum http://www.tramway.co.uk

servewouters
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Location: Maastricht, Netherlands

Re: Points - the achilles heel

Post by servewouters »

Today I tried to solder the rails on the pcb, but I think that the curve is a bit too tight, because it wont hold unfortunately :(
Doug, the point you use on the bridge seems a good alternative. Very functional, not the best realistic looking, but I don't care about that, the trains need to run flawlessly, as I need a lot of points... Are you maybe willing to share your .dxf file from that point? Then I can adjust it into a right and a lefthand point :)

spturner
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Re: Points - the achilles heel

Post by spturner »

Has anyone contacted the folks over at Fast Tracks? Seems like they have turnout assembly fixtures in just about every gauge except T. They even have Zm at 4.5 mm! It looks like all of their fixtures are built to order anyway, so if enough of us requested it maybe they'd make a #6 or #8 turnout guide for us T gauge folks.

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dkightley
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Re: Points - the achilles heel

Post by dkightley »

I emailed them in February to enquire if they had or would consider producing jigs, etc for T gauge. their reply:
Hello Doug,

After checking with Tim he said it would be almost impossible to create an assembly fixture for T scale due to the limited clearances required. The Zm gauge is the smallest that we have been able to create with our existing equipment.


Cheers!

Terry Firth
Fast Tracks Hobbyworks Inc.
Doug Kightley
Webmaster here and volunteer at the National Tramway Museum http://www.tramway.co.uk

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