JD2035RR posted:

Nice work, as usual! Put me down as a beta tester for one of the postwar conversion boards 😉 I really like that you retain the e-unit.  I would probably install the board with a switch to run conventional or via the board, like LC+ does now.

Just thinking ahead a step or two here...

Will there be a way to update your board if Lionel comes out with an app update that changes how data is sent from app/remote to engine? I’d hate to see an LC app update negate all of your progress so far. 

Thank you very much, and will do 😉. I would say it's worth the effort for me to keep it in for the cool factor too. Plus it makes adding a simple slide switch to switch to conventional mode very easy. I was definitely planning on adding the same switch to mine.

Well I certainly hope it never comes to that since I would definitely prefer working with Lionel than against. It would be a shame if things came down to helping the train community by fighting Lionel. (seams like they would be fighting their own customers in that scenario).

But to answer your question software updates will be possible in some capacity. Though I only hope I need the ability to release new features and nothing else.

Thanks, and that will be done soon. should be ready this weekend. Mostly going to be based on my LC Gateway Code.

I'm glad I got this portion of the hardware straightened out first. I had an issue where I tried using a relay to trigger the e-unit with a relay but it ended up drawing too much power from my board. So I ended up building another solid state solution from scratch. (As a bonus, the custom solution actually takes less space anyway.)

And as we can see from the video, a section of my e-unit drum is dirty so I would like to fix that too. I already tried cleaning it with alcohol once but it seems the fingers of the e-unit itself might be dirty. Maybe some super fine sandpaper can solve that.

After I get Bluetooth up and running I have to build an e-unit position detection circuit to know if the train is currently in forward, reverse, or neutral. This will be critical.

 

Question, and forgive me, I'm not familiar with electronics, software development etc.  

Would an electronic reverse board (like the ones you can get from Bachman for the Williams line) be better/easier than the old e-units?  

Larry DiG

Casey_Jones posted:

Thanks, and that will be done soon. should be ready this weekend. Mostly going to be based on my LC Gateway Code.

I'm glad I got this portion of the hardware straightened out first. I had an issue where I tried using a relay to trigger the e-unit with a relay but it ended up drawing too much power from my board. So I ended up building another solid state solution from scratch. (As a bonus, the custom solution actually takes less space anyway.)

And as we can see from the video, a section of my e-unit drum is dirty so I would like to fix that too. I already tried cleaning it with alcohol once but it seems the fingers of the e-unit itself might be dirty. Maybe some super fine sandpaper can solve that.

After I get Bluetooth up and running I have to build an e-unit position detection circuit to know if the train is currently in forward, reverse, or neutral. This will be critical.

 

Question, and forgive me, I'm not familiar with electronics, software development etc.  

Would an electronic reverse board (like the ones you can get from Bachman for the Williams line) be better/easier than the old e-units?  

I like questions. I looked into the Bachmann board you mentioned and it appears to be a simple pair of relays and that would not work with these 3 wire pullmor motors. I am pretty sure Lionel had one at one point but I have not seen it yet. I believe I can control the pullmor with a set of 4 triacs (solid state switches basically) but again I again I have no references on that yet. I have a few ideas on how I could design a digital e-unit with the 3 wire output(not to be confused with a brushless speed controller).

Anyway I consider the original e-unit to be a bit like the engine of a classic car. The locomotive would still work if I replaced it with a modern one but it would be less interesting/fun. The original e-unit was a bit of an engineering wonder for its time and I would like to keep mine in its original function for that reason.

At some point I can design an alternative board but I would not be using that in my trains. No matter what versions I build I will be keeping a conventional running switch because what's the point of a postwar that can't run conventionally I'd say.

I had a major breakthrough today, I got the LionChief remote to send bell and horn commands to a legacy locomotive. If I didn't have to leave I could have finished getting the other functions running too!!

Work in progress video here: https://youtu.be/9tPro7mHm8A

Full control of TMCC functions is a work in progress. Legacy features might be possible after that.

@Landsteiner I know you were asking about this feature.

Ryaninspiron posted:

I like questions. I looked into the Bachmann board you mentioned and it appears to be a simple pair of relays and that would not work with these 3 wire pullmor motors. I am pretty sure Lionel had one at one point but I have not seen it yet. I believe I can control the pullmor with a set of 4 triacs (solid state switches basically) but again I again I have no references on that yet. I have a few ideas on how I could design a digital e-unit with the 3 wire output(not to be confused with a brushless speed controller).

Clearly, you can control a Pullmor motor with four triacs, Lionel has done it for many years with the LCRU and then the ACDR motor controller.   The LCRU made it's entrance around 1996, and the ACDR for modular boards around 2000.

Attachments

Photos (2)
gunrunnerjohn posted:

Clearly, you can control a Pullmor motor with four triacs, Lionel has done it for many years with the LCRU and then the ACDR motor controller.   The LCRU made it's entrance around 1996, and the ACDR for modular boards around 2000.

Thanks, I figured as much, though without schematics I will have to figure it out. I know how to control a triac already, but I am not sure how the 4 triacs connect to the 3 motor wires yet.

The answer is literally contained on the underside of the boards you attached above.

Casey_Jones posted:

wow.

 

Question; did you say you would eventually be able to send Legacy Commands directly to BT equipped Legacy Trains? (ie no need for a Legacy base)

Thanks,

One could technically use my simulator (of a Cab-2) to send commands via my LC Gateway to a lionchief train.

I also plan on allowing a real Cab-2 to send commands via the legacy base and my LC Gateway to LionChief trains.

It'll be one big cross-compatibility party.

 

The only thing I couldn't do is add Bluetooth to the Legacy Cab-2 directly. 

 

Also special Legacy commands such as individually selected announcements would not work in LionChief. Even with a cab-2 remote since I can only add as many features as are possible with the LionChief remote.

Surprise surprise, it's a 2 for 1 update day today. I said it would be quick to add that Bluetooth control to the board I built for postwar control last week. And I already have results.

I now have LionChief control over a postwar locomotive with it's original E-Unit still in place doing its job. This is one of the most exciting updates so far for me.

https://youtu.be/KA2-Qvt5x-4

Landsteiner posted:

Nice going.  You've got a talent for this sort of Rube Goldberg technical wizardry .

Thank you thank you, any time a project works along side with the E-Unit it is automatically a Rube Goldberg machine . I have simply added to that machine. I'm just glad it worked out that I get to keep the E-Unit in place. My board still does not actually check the position so the forward and reverse of the LC remote control/app are more like suggestions than anything else.

I also need to start shrinking down my components, I had the cover on before adding E-Unit control, now I just need to get creative. Maybe I should try a tether to the dummy unit for sound and rear coupler control. After that I will try and sync the speed steps up with my other LC locomotives. I technically have about 1024 speed steps to work with on my custom control board. I am working on a train detector circuit that allows me to tell the scale MPH of a train based on how long it takes to cover a certain distance. I will then use those numbers to calibrate my different locos to the exact same speed. 

I still want to buy the modern LC+ Erie Alco B unit to go with my two postwar Erie Alco A units from 1954 (one powered, one dummy).

Add Reply

Post
OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
330-757-3020

www.ogaugerr.com
×
×
×
×
×