Motors for TT

Re: Motors for TT

Postby AstroGoat760 » Sat May 05, 2018 4:00 pm

RodTT wrote:I see they are also available on ebay UK so I might invest in some...just in case my SW1200s pack up too. I'll certainly be interested to see how you others get on with them.

My experimentations with re-powering the SWs will be documented here as to what works and what does not. I need to be more open about what works and what does not on my end.

By the way, I am sure that I have the most hours logged on an SW model, which is why the high failure rate. I tend to have a train in some scale running for about 1/3 to 1/2 the day, if not longer on most days, with TT scale representing the majority of the usage nowadays. I plan on doing testing on at least of the newer motors to see where the breaking point is from run time.
Course Set, Speed - Maximum Warp, PUNCH IT!
User avatar
AstroGoat760
 
Posts: 3551
Images: 0
Joined: Fri Jul 24, 2009 8:07 pm
Location: Lidgerwood, North Dakota, USA

Re: Motors for TT

Postby AstroGoat760 » Sat May 05, 2018 8:56 pm

Oh, yeah, I almost forgot, the shaft width of the MTB SW motor is 1.5 mm, the same as these motors.
Course Set, Speed - Maximum Warp, PUNCH IT!
User avatar
AstroGoat760
 
Posts: 3551
Images: 0
Joined: Fri Jul 24, 2009 8:07 pm
Location: Lidgerwood, North Dakota, USA

Re: Motors for TT

Postby AstroGoat760 » Mon May 14, 2018 6:29 pm

My order of motors came in today. When I get a little more relaxed from today's running around, I will unpack them and give my assessment of them.
Course Set, Speed - Maximum Warp, PUNCH IT!
User avatar
AstroGoat760
 
Posts: 3551
Images: 0
Joined: Fri Jul 24, 2009 8:07 pm
Location: Lidgerwood, North Dakota, USA

Re: Motors for TT

Postby AstroGoat760 » Mon May 14, 2018 7:38 pm

Here is the initial unpacking of the motors. I purchased two sets of 5 motors, which leaves 6 for retrofit, 3 spares, and one motor to set up for testing.
IMG_2315.JPG

IMG_2316.JPG

Here is one of the new motors next to one of the motors from the MTB SWs:
IMG_2317.JPG
Course Set, Speed - Maximum Warp, PUNCH IT!
User avatar
AstroGoat760
 
Posts: 3551
Images: 0
Joined: Fri Jul 24, 2009 8:07 pm
Location: Lidgerwood, North Dakota, USA

Re: Motors for TT

Postby AstroGoat760 » Mon May 14, 2018 7:47 pm

Here is "Motor Zero" undergoing testing. Constant power testing has been going on since 1920 on 14May2018. I am trying to decide how long is "enough" to feel confident enough to make use of these motors in my SWs.
IMG_2318.JPG
Course Set, Speed - Maximum Warp, PUNCH IT!
User avatar
AstroGoat760
 
Posts: 3551
Images: 0
Joined: Fri Jul 24, 2009 8:07 pm
Location: Lidgerwood, North Dakota, USA

Re: Motors for TT

Postby AstroGoat760 » Mon May 14, 2018 8:37 pm

The first hour of testing is complete, with the motor being held at 9.65 Volts DC for the time being. The motor casing is slightly warm, as to be expected. The second hour of testing will see how warm it gets at full powerpack Voltage of 17.10 VDC.

Ah, the song of a small motor at a constant speed...
Course Set, Speed - Maximum Warp, PUNCH IT!
User avatar
AstroGoat760
 
Posts: 3551
Images: 0
Joined: Fri Jul 24, 2009 8:07 pm
Location: Lidgerwood, North Dakota, USA

Re: Motors for TT

Postby AstroGoat760 » Mon May 14, 2018 8:53 pm

About halfway through the second hour of testing:

The casing is warm to the point of being difficult to keep in contact with for over a minute. If I did not know any better, these motors are about, if not a little more "torquey" than the stock MTB motors. Based on how much resistance there is to manually stopping the motor shaft as opposed to the same effect on a MTB motor, from my experience.
Course Set, Speed - Maximum Warp, PUNCH IT!
User avatar
AstroGoat760
 
Posts: 3551
Images: 0
Joined: Fri Jul 24, 2009 8:07 pm
Location: Lidgerwood, North Dakota, USA

Re: Motors for TT

Postby AstroGoat760 » Mon May 14, 2018 9:48 pm

Hour Two Complete: The motor is very warm to the touch, which may pose a problem for using double-sided tape to fasten the motors down. I feel that some tie wire may be needed, or at least super glue.
Course Set, Speed - Maximum Warp, PUNCH IT!
User avatar
AstroGoat760
 
Posts: 3551
Images: 0
Joined: Fri Jul 24, 2009 8:07 pm
Location: Lidgerwood, North Dakota, USA

Re: Motors for TT

Postby AstroGoat760 » Mon May 14, 2018 10:38 pm

Hour Three Complete: The motor has cooled nicely after being reduced to 10 VDC. Even at 10 VDC, there is a good bit of torque to the motor as well. It takes a good bit of force to stall the motor whist running at 10 VDC.

The initial verdict:

The sample motor has exceeded expectations for such a low-priced option.
Expect to see the prototype work-up on the MTB SW refit soon.
Course Set, Speed - Maximum Warp, PUNCH IT!
User avatar
AstroGoat760
 
Posts: 3551
Images: 0
Joined: Fri Jul 24, 2009 8:07 pm
Location: Lidgerwood, North Dakota, USA

Re: Motors for TT

Postby krokodil » Tue May 15, 2018 5:24 am

AstroGoat760 wrote:The second hour of testing will see how warm it gets at full powerpack Voltage of 17.10 VDC.

Ah, the song of a small motor at a constant speed...


Do you want to kill your motor? I would not recommend any motor of this size to run on 17 V. Where did you get this value? Even if you run digital you should reduce the track voltage to about 14-15 V to run on safe side.

This is one of the biggest misinterpretation of the standards (my friend runs a service for model trains and almost everyday there is a damaged motor just because of wrong voltage. Sometimes he needs even my help to fix those small models.
Greetings from Austria
E.T.
User avatar
krokodil
 
Posts: 470
Joined: Tue Jan 29, 2013 6:46 pm

PreviousNext

Return to General Discussion

Who is online

Users browsing this forum: No registered users and 0 guests