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Post by Rob Albritton on Feb 1, 2016 7:37:11 GMT -5
Can this be done with an E-8 B ? Yes. I did it with an E8b.
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Post by Commodore on Feb 1, 2016 15:01:28 GMT -5
I'd been wondering how to add a sugar cube speaker...
Looks like the E8 B, then.
Thanks, Rob!
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Post by tjdreams on Feb 9, 2016 22:27:54 GMT -5
Made a little progress on the B unit sound car Milled out the center of the weight and fuel tank for the speaker to sit in, Which leaves just enough room for the decoder and a capacitor above it.
It all fits and I didn't have to use the shoehorn (Yet)
I still need to make a couple brackets to hold the decoder up off the top of the speaker, and another to hold the capacitor form bouncing around.
Just need another Snow day off and I'll be ready to wire it up and give it a test run
David
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Post by tjdreams on Feb 16, 2016 19:13:13 GMT -5
Well Here it is my MTL Dummy F7 B with sound. Turn your speakers up and let me know what you think. MTL F7 B Sound Car
This was the very first test run. I still need to do some fine tuning and adjust some CV's But it's getting there. The lead unit is one of my quietest MTL F7's. (NYC) It was de-bured & tuned up, then the frame was milled out and a Z-2 decoder installed. The Trailing unit is "The Sound Car" the same MTL F7 B Dummy pictured in my last post. I had to make a few changes in the layout of all the components but it All Fits. David
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Post by davidf on Mar 2, 2016 8:57:16 GMT -5
The method I use to get free rolling B trucks is to drill through the tiny center hole of the journal box with a tiny .80 drill. Then use a larger drill (like a #66) and open that pilot hole ON THE INSIDE at each journal (go slow so as not to drill through the side frame and ruin the detail. You next need Marklin wheels (as commonly found on any Marklin truck type). Trim the edges of the wheel spaces on the bottom of the MTL side frame a little, to give some clearance to the inside of the markin wheel. Snap in the wheel sets and you'll have some easy rolling trucks. The trucks thus modified can still be used on powered MTL trucks.
Forgot to say that the bolster needs the wheel wells removed. I will resemble a "cross" part,with the sides intact to screw the sideframe back on.
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Post by BAZman on Mar 2, 2016 11:52:03 GMT -5
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Post by mzbringh on Mar 3, 2016 16:58:42 GMT -5
I'm also looking at installing sound in a F7B, boxcar or tender. And I'm getting more interested in using capacitors to avoid stalling and so on. I'm curious on how the capacitor is installed here. I'm looking at using a Zimo sugarcube speaker, ESU Loksound Micro decoder and an ESU Powerpack if I can fit it. ESU Powerpack is possibly overkill and expensive. It isn't just a capacitor. It has some logic built in too. The idea is that the decoder can control it so that if you want to stop the power in the capacitor isn't used while when you loose power the power in the capacitor is used instead. I know that I have seen a circuit for connecting capacitors to any Z-scale engine. Maybe as a reply to a thread on Trainboard but I can't find it. It used, besides the capacitor, a diod and a resistor. I assume the diod is there to prevent the current from going in the wrong direction. And the resistor is there to ensure a smooth release of the charge in the capacitor. Also the instructions for the ESU Loksound decoder says don't wrap the decoder or it may get overheated. I'm also struggling with how to mount things. Should I try to make some brackets or just use doublesided cushion tape and be happy with it. I like the mounting of the speaker. I have seen videos on Youtube where they use silicon to seal the speaker so that the sound goes in one direction only so that you get a cleaner sound. Any feedback would be appreciated. This is an interesting project.
Cheers Mikael
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Post by tjdreams on Mar 5, 2016 22:51:20 GMT -5
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Post by tjdreams on Mar 5, 2016 23:09:28 GMT -5
I'm also looking at installing sound in a F7B, boxcar or tender. And I'm getting more interested in using capacitors to avoid stalling and so on. I'm curious on how the capacitor is installed here. I'm looking at using a Zimo sugarcube speaker, ESU Loksound Micro decoder and an ESU Powerpack if I can fit it. ESU Powerpack is possibly overkill and expensive. It isn't just a capacitor. It has some logic built in too. The idea is that the decoder can control it so that if you want to stop the power in the capacitor isn't used while when you loose power the power in the capacitor is used instead. I know that I have seen a circuit for connecting capacitors to any Z-scale engine. Maybe as a reply to a thread on Trainboard but I can't find it. It used, besides the capacitor, a diod and a resistor. I assume the diod is there to prevent the current from going in the wrong direction. And the resistor is there to ensure a smooth release of the charge in the capacitor. Also the instructions for the ESU Loksound decoder says don't wrap the decoder or it may get overheated. I'm also struggling with how to mount things. Should I try to make some brackets or just use doublesided cushion tape and be happy with it. I like the mounting of the speaker. I have seen videos on Youtube where they use silicon to seal the speaker so that the sound goes in one direction only so that you get a cleaner sound. Any feedback would be appreciated. This is an interesting project. Cheers Mikael I made some brackets to hold the decoder up leaving a air gap all around it. I used the body of the car and some styre strips to make a sound chamber which helps with the Base and overall quality of the sound.
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Post by Commodore on Jun 10, 2016 21:41:23 GMT -5
I still like the idea.
Mikael, Have you made any more progress?
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Carlsbad92009
New Member
Z-Scale Service, Cleaning, DCC, Repair, LED Lighting
Posts: 8
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Post by Carlsbad92009 on Jun 15, 2016 1:09:12 GMT -5
I could not resist to reply to this topic as I have been down this road a couple hundred F-7's ago. The MTL is a great unit once you know it's personality. The powered units and the dummy A or dummy B units benefit greatly from power pick-ups at the trucks. The late Glen Chenier was an inspiration to create the first solution with his idea of a better power pick-up wheel wiper....but his design has/had some serious shortcomings as it was only effective as long as you cleaned the dirt/debris buildup that the design accumulated during use. And on a frequent basis. Chenier wiper Example shown is after some track use with truck journals removed to show better detail. I designed and built a better solution necessitated after building improved LED lighting for the MTL-7 including DCC. This design serves as a multi-point solution. On reassembly, clean and polish the wheel journals to a mirror finish. Add a very small amount of Conducta Lube. Install the wheel wipers using the replacement screws provides solid conductive contact to the truck tower/journal. Wipers makes low pressure consistent contact to the inside of the wheel on all four wheels giving you noticeably less friction free rolling. And.......is not a dirt collector, less frequency between cleanings. Installation is much easier as I pre-bend the wiper for you. No crazy bending or special tools needed. And.....for those who like to go one step further, wire directly to the wiper for ultimate motor or DCC connection, including sound applications. Contact me if you have any questions or if you are interested in a wiper set. Don FedjurAttachments:
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Post by strummer on Jun 15, 2016 8:26:42 GMT -5
Wow, I like that. It does seem like a better system. Very professional, too. Mark in Oregon PS: I like the phrase "once you know its personality"...
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Post by Commodore on Jun 17, 2016 16:21:32 GMT -5
I really like how clean the solution is...
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Post by cjm413 on May 19, 2019 13:33:49 GMT -5
I'm admittedly getting into this thread a little late, but has anyone tried modifying the unpowered trucks with microbearings on the wheelsets? Here's a similar conversion that was done on Bachmann's N scale Amfleets that are just as much of a "lead sled" as the unpowered MTL trucks: www.therailwire.net/forum/index.php?topic=39504.30
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Post by Commodore on May 19, 2019 14:17:51 GMT -5
I'm admittedly getting into this thread a little late, but has anyone tried modifying the unpowered trucks with microbearings on the wheelsets? Here's a similar conversion that was done on Bachmann's N scale Amfleets that are just as much of a "lead sled" as the unpowered MTL trucks: www.therailwire.net/forum/index.php?topic=39504.30 I'm ordering!
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