Lumsdonia R&D Dept Workbench
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Lumsdonia R&D Dept Workbench
I have lots of idea's bubbling away at the back of my mind, bursting to get out and be developed. I thought I would share some of the development of these projects for the benefit of the inquisitive, rather than just creating them and shelving the completed projects in readiness for one day when I have a huge layout to fit them all on! So I will document the research and experimentation, warts and all, for your delectation.
Working Playground Swing
Working Playground Roundabout
Bend resistant lamp base
{Reserved for links to individual projects}
Working Playground Swing
Working Playground Roundabout
Bend resistant lamp base
{Reserved for links to individual projects}
Last edited by TimberSurf on Thu Aug 03, 2017 10:06 pm, edited 3 times in total.
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Re: Lumsdonia R&D Dept Workbench
Past
I started some individual threads for some of the past projects, but I will try to reference all in this one
To date:-
Not my thread but ended up contributing my sound projects
viewtopic.php?f=7&t=45767
Alternate smoke generator
viewtopic.php?f=49&t=50510
Buffer Lights
viewtopic.php?f=6&t=50762
Servo driven level crossing
viewtopic.php?f=8&t=50916
Track voltage Bogie tester
viewtopic.php?f=8&t=50608
NCE UTP alternative
viewtopic.php?f=27&t=45043
I started some individual threads for some of the past projects, but I will try to reference all in this one
To date:-
Not my thread but ended up contributing my sound projects
viewtopic.php?f=7&t=45767
Alternate smoke generator
viewtopic.php?f=49&t=50510
Buffer Lights
viewtopic.php?f=6&t=50762
Servo driven level crossing
viewtopic.php?f=8&t=50916
Track voltage Bogie tester
viewtopic.php?f=8&t=50608
NCE UTP alternative
viewtopic.php?f=27&t=45043
Last edited by TimberSurf on Thu Jul 06, 2017 7:32 am, edited 2 times in total.
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Re: Lumsdonia R&D Dept Workbench {Working Playgroung swing}
Latest idea, very quickly thrown together as soon as my "stock" of neo magnets turned up.
Brass tube and a little magnet lost in the bluetack (will be lost under a seat and someone sitting on it) The idea is to mount the rotating magnet motor and gearbox below the baseboard, I originaly thought I would have to cut a large hole and cover with thin plastic so the magnets could be close, however, the rare earth magnets are so strong, I think it may work directly under 12mm ply!
Working Playgroung swing Video
Brass tube and a little magnet lost in the bluetack (will be lost under a seat and someone sitting on it) The idea is to mount the rotating magnet motor and gearbox below the baseboard, I originaly thought I would have to cut a large hole and cover with thin plastic so the magnets could be close, however, the rare earth magnets are so strong, I think it may work directly under 12mm ply!
Working Playgroung swing Video
Last edited by TimberSurf on Thu Jul 06, 2017 10:56 pm, edited 1 time in total.
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Re: Lumsdonia R&D Dept Workbench
Next on the list is a working playground roundabout. Just running it seemed a little to simple and unrealistic, so i developed a little circuit (very simple) to allow a little acceleration and a long deceleration. I could power it with PWM from my PC lighting system, but would prefer to keep that for lights and just run animation models from a separate 5v bus. I will eventually connect to a timer (10 secs on/110 secs off) or may yet drive from the lighting supplyRoundabout Video
Last edited by TimberSurf on Thu Jul 06, 2017 10:56 pm, edited 1 time in total.
- End2end
- Posts: 6010
- Joined: Sun Jan 12, 2014 9:58 pm
- Location: At the end....... and sometimes at the other end
Re: Lumsdonia R&D Dept Workbench
Some great models there Timbersurf
I went to look at your Servo driven level crossing but the link points to the buffer stops. Same as the link above.
Thanks
End2end
I went to look at your Servo driven level crossing but the link points to the buffer stops. Same as the link above.
Thanks
End2end
"St Blazey's" - The progress and predicaments.
Welcome
Planning
Building
St. Blazey's Works & Depot thread
Welcome
Planning
Building
St. Blazey's Works & Depot thread
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Re: Lumsdonia R&D Dept Workbench
Link now fixed
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Re: Lumsdonia R&D Dept Workbench
Thanks Atso, but your easily impressed! Personally, I was much more impressed with the magic swing! lol
I still have to paint/mark planks on it, maybe use brass rod and bring away from the surface. I will definitely make more and refine the detail, it was more a test of the electronics to gauge the speed and deceleration than anything else.
Further details:-
I will make a bracket to hold under board and poke the shaft that's attached to the planetary motor and gearbox, through a hole. The roundabout is cunningly made with a brass tube up the middle, so will just 'drop' onto the shaft (not fixed), This means its easy to fit and maintain.
Once fitted on the layout the roundabout will be under the control of my Computer controlled (timed cycle) layout lighting system and I can drive it with PWM and set random running/length etc.
I still have to paint/mark planks on it, maybe use brass rod and bring away from the surface. I will definitely make more and refine the detail, it was more a test of the electronics to gauge the speed and deceleration than anything else.
Further details:-
I will make a bracket to hold under board and poke the shaft that's attached to the planetary motor and gearbox, through a hole. The roundabout is cunningly made with a brass tube up the middle, so will just 'drop' onto the shaft (not fixed), This means its easy to fit and maintain.
Once fitted on the layout the roundabout will be under the control of my Computer controlled (timed cycle) layout lighting system and I can drive it with PWM and set random running/length etc.
Re: Lumsdonia R&D Dept Workbench
I'm impressed by the whole lot and not so 'easily' as there is obviously a lot of thought, work and skill gone into making those work.TimberSurf wrote:Thanks Atso, but your easily impressed!
Steve
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Re: Lumsdonia R&D Dept Workbench
Certainly some thought, to be honest, not a lot of work and very little skill. As a professional (design) Engineer, I don't consider it hard, as it's just "what I do", the benefit of 30 years of experience, makes it seem easy to me. What impresses me, is skills that I don't have, like 3D printing and hand painting lines etc.Atso wrote:
I'm impressed by the whole lot and not so 'easily' as there is obviously a lot of thought, work and skill gone into making those work.
I would love to get into 3D printing, and know enough about it, to know I would only be happy with a £2,000 plus printer! The cost is not even the problem, it's the surefire knowledge that it would take over everything (all consuming hobby) that would totally detract from my current interests!
I have the same issue with CNC, I would love one, again probably at least £800 worth, then add the laser cutter, then the water jet cutter......it would never end!
Therefor it will not start, I will leave to others and drool over their offerings......impressed by their skills.....and put in a few "wow's" of my own for their efforts.....yours and Timbologist's being ones that come to mind
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Re: Lumsdonia R&D Dept Workbench
Not getting much time to do modelling, been busy buying car, fixing car, holiday, and work is manic, but managed a quick hour this evening, so had a go at a second roundabout with a bit more detail
Roundabout version 2
Enjoy!
Roundabout version 2
Enjoy!
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Re: Lumsdonia R&D Dept Workbench (Bung lamp base)
You buy those beautiful delicate scale lights, you spend for ever stringing them all in parallel with resistors under the layout, you stand back and admire the great job, while scrutinizing the the new pools of light, you notice some other new anomaly and dive in to fix it. What was that, that just tickled your elbow???
B%^&*cks .
You have just destroyed all your hard work, by sideswiping a new lamp that wasn't there an hour ago!!!
If they are anywhere near scale, they are incredibly delicate and just begging to get a bashing!
I have often pondered using 3.5mm jack plugs (or even better for scale, 2.5mm). Quick disconnect for maintenance on the layout (if you remember to take them out) but the jack socket will have to be glued in, making the lamp rigid and the danger of bending the lamp post or jack plug is still a risk.
So I came up with an alternative, for ease of maintenance and inbuilt rigidity, anti-vibration and bend resistance!
Basically mount the post on a spring!
Not very pleasing to the eye or prototypical, so a little lateral thinking lead to rubber.
This then jumped to a fixing system that is tapered, so fits snuggly, can rotate when required to set correct attitude and is readily removable. I will solder a connector to each lamp so that once pulled up, I can detach without going under the board, this is possible, because the hole for the bung is around 6mm in diameter!
Demonstration
The Lamp assembly Assembled lamp just pushes into a pre-drilled hole a little smaller than post, leave the rubber test tube bung in the freezer to make it easier to drill and ensure drill is "square" as you drill the hole
The tools A taper hole cutter or a step cutter can be used, just keep trying till the bung fits tightly with the top flush with the board
Another ingenious side effect, is that your base board thickness makes no difference! This works on any depth (beyond 3/4in, just drill a 6mm hole through the rest)
B%^&*cks .
You have just destroyed all your hard work, by sideswiping a new lamp that wasn't there an hour ago!!!
If they are anywhere near scale, they are incredibly delicate and just begging to get a bashing!
I have often pondered using 3.5mm jack plugs (or even better for scale, 2.5mm). Quick disconnect for maintenance on the layout (if you remember to take them out) but the jack socket will have to be glued in, making the lamp rigid and the danger of bending the lamp post or jack plug is still a risk.
So I came up with an alternative, for ease of maintenance and inbuilt rigidity, anti-vibration and bend resistance!
Basically mount the post on a spring!
Not very pleasing to the eye or prototypical, so a little lateral thinking lead to rubber.
This then jumped to a fixing system that is tapered, so fits snuggly, can rotate when required to set correct attitude and is readily removable. I will solder a connector to each lamp so that once pulled up, I can detach without going under the board, this is possible, because the hole for the bung is around 6mm in diameter!
Demonstration
The Lamp assembly Assembled lamp just pushes into a pre-drilled hole a little smaller than post, leave the rubber test tube bung in the freezer to make it easier to drill and ensure drill is "square" as you drill the hole
The tools A taper hole cutter or a step cutter can be used, just keep trying till the bung fits tightly with the top flush with the board
Another ingenious side effect, is that your base board thickness makes no difference! This works on any depth (beyond 3/4in, just drill a 6mm hole through the rest)
Re: Lumsdonia R&D Dept Workbench
I like the roundabout.
Modelling On A Budget ---》 https://www.newrailwaymodellers.co.uk/F ... 22&t=52212
Re: Lumsdonia R&D Dept Workbench
I could do with a roundabout !!
Love it.
Geoff T.
Love it.
Geoff T.
Remember ... I know nothing about railways.
http://www.newrailwaymodellers.co.uk/Fo ... 22&t=32187 and Another on http://www.newrailwaymodellers.co.uk/Fo ... &sk=t&sd=a
http://www.newrailwaymodellers.co.uk/Fo ... 22&t=32187 and Another on http://www.newrailwaymodellers.co.uk/Fo ... &sk=t&sd=a
- TimberSurf
- Posts: 2537
- Joined: Wed Jan 08, 2014 5:47 pm
- Location: N.Wales
- Contact:
Re: Lumsdonia R&D Dept Workbench
The main body of the roundabout is a cast of herculite plaster (hard as marble) with a brass rod embedded in it. Rather than being made from cardboard or plasticard, it has a bit of mass, so is less inclined to be jerky.
Cheap and cheerful and highly replicable. (I'll add it to my list of saleable items for my future ambition for a mail order shop)
Next up will be a seesaw, but I need a bit of flat brass or steel for the beam, I need to scrabble through my bits to find the right size.
Cheap and cheerful and highly replicable. (I'll add it to my list of saleable items for my future ambition for a mail order shop)
Next up will be a seesaw, but I need a bit of flat brass or steel for the beam, I need to scrabble through my bits to find the right size.