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About Sven-E

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  1. Thanks Robert. One tip is this video from Megapoints Dave who converted a Dapol semaphore to servo. I like his simple method of just gluing the servo to the bottom of the semaphore base. Makes it a single unit so you can lift it off the layout easily. Join the MERG Irish Area Group on Sunday for some more advice.
  2. Nice! What do you use to move the wing? If servo, what servo controller do you use?
  3. Great stuff Nick. This is how I want to see operations on an exhibition layout.
  4. Great to see Paddy. Have you decided which sensor to use? Have you tried them on real track to see how they work? I had the same problem as you describe with black under sides that didn't reflect the IR beam. A problem with the photo transistor is that you may want to adjust the threshold in case you have extreme brightness in your room or if the room is dark.
  5. Thanks again for sharing. Sounds reliable. Looking forward to the real thing.
  6. Thanks for sharing this clever thing Paddy. Just a thought on this now that I understand your circuitry. What if one of one of the reed switches misses a contact. Say that the entry switch doesn't register the magnet when a loco comes in? Then when the train passes the second reed-switch it will turn off power at this point. Then you are out-of-sync and when the next train comes over the entry reed-switch it turns on power on the crossing track. I do hope your modern magnets are more reliable than the ones I used in the past so you don't get into this situation.
  7. Much better to connect the wire from the frog (the V) to the point motor polarity switch. This guarantees that the polarity is switched correctly. If you use a separate switch and your point blades start to work again you run a risk of short-circuit if you don't flick the switch exactly as the point changes.
  8. Excellent. Lots of activities for the viewers and more to come when you get further. What software do you use to control the layout?
  9. Thanks Paddy. Then I understand your motivation. Yes, the IR sensor needs some driver transistors. I am planning sensors for my layout and looking at different options, including track current detection. For IR sensors I look at kits that provide the drivers so just need to plug them in just like your reed relays. I am a member of MERG and get good and cheap kits that way. The Arduino community has a lot of simple sensors that are easy to plug in to an Arduino (as you mentioned yourself) or other solutions. You can get these quite cheaply too. And while I am at it, I did have some problem
  10. Paddy, Thanks for sharing this and making good videos. In the early postings you had pictures that showed that you were using IR sensors. Later you use Reed relays. Why did you switch? Were you not happy with the IR sensors? I am asking because I had problems with Reed relays. Well, rare-earth magnets have improved things since then but still not fully reliable. And you have to mount a magnet on the locos. With IR sensors you don't need the magnets and it senses the whole length of the train, not just the loco. Cheers / Sven
  11. If you want to find more on that Swedish tram, search for "Halmstad Nässjö Järnväg ångvagn". "Ångvagn" means "steam tram" This link is a google search for images. https://www.google.com/search?q=halmstad+nässjö+järnväg+ångvagn&sxsrf=ACYBGNTBWS75lRUcj7nj5Qp4aAaQTXygfg:1580855966559&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjnqM-y-7jnAhWBsHEKHWj7B2UQ_AUoAnoECAsQBA&biw=1600&bih=790
  12. CV5 is the max speed. My decoders (also from CT) have CV5 set to 255. CV6 is the mid range speed. Should be set to 50 or something between CV2 and CV5. If you change CV29 to 6 you enable it to run in analog mode (if supported). If this works, then you can see if it runs faster this way. Or even better, do you have the blanking plate to replace the decoder? Then you can really check how the railcar works by itself. Hope this helps.
  13. The Dapol semaphores are controlled by a pushbutton to change its position. The pushbutton shall connect two yellow wires. Each time you press the button the semaphore changes position. The Peco point switches have a momentary contact at each end of the lever movement which makes it difficult to use here. There are several solutions out there to allow a "lever effect": There are a few commercial kits that allow an on-off switch to generate the momentary connection the semaphore needs. Simple solution but the unit may get out-of-sync with the semaphore. MERG has a kit to
  14. Drove past Malahide Casio today. Since last time I was there they have put up a nice sign saying "Coming soon".
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