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painting brass parts

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  • Member since
    November 2013
  • 2,775 posts
Posted by snjroy on Monday, April 10, 2023 9:14 AM

SeeYou190

I looked at the instructions for my Bowser 2-8-0.

It also has tender pick up for one rail. No wipers. All the current flows through the truck side frames.

-Kevin

 

I've added wipers to have all-wheel power pickup on my tenders. Performance is greatly enhanced, especially on DCC.

On the smaller trucks, a quick way is to buy an Athearn Truck that is all pre-wired. But adding wipers to a plastic truck is fairly easy. The three axle trucks are more of a challenge. I've been successful using old plastic 3 axle Rivarossi trucks. 

Simon 

  • Member since
    June 2005
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Posted by Darth Santa Fe on Sunday, April 9, 2023 8:53 PM

SeeYou190

I looked at the instructions for my Bowser 2-8-0.

It also has tender pick up for one rail. No wipers. All the current flows through the truck side frames.

-Kevin

 

That's common for most kits from Bowser, Mantua/Tyco and Varney, as well as most of the brass steam engines I've seen.  Electrical pickup relies mostly on contact from the trucks to the frame without wipers.  It usually works fine, but I've added wipers now and then to improve them if there's trouble maintaining good contact.

_________________________________________________________________

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
  • 18,255 posts
Posted by SeeYou190 on Sunday, April 9, 2023 8:21 AM

I looked at the instructions for my Bowser 2-8-0.

It also has tender pick up for one rail. No wipers. All the current flows through the truck side frames.

-Kevin

Living the dream.

  • Member since
    September 2004
  • From: Dearborn Station
  • 24,281 posts
Posted by richhotrain on Sunday, April 9, 2023 5:58 AM

SeeYou190

 

 
Overmod
You maintain electrical conductivity by not going through the brass sideframe, or worse, microarcing through the bearings, at all.

 

ALL of my brass steam locomotives pick up through one rail on the tender. No wipers, just through the axle bearings, sideframe, bolster, to the tender frame/body.

Interesting.

Rich

Alton Junction

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
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Posted by SeeYou190 on Sunday, April 9, 2023 5:17 AM

Overmod
You maintain electrical conductivity by not going through the brass sideframe, or worse, microarcing through the bearings, at all.

ALL of my brass steam locomotives pick up through one rail on the tender. No wipers, just through the axle bearings, sideframe, bolster, to the tender frame/body.

In all the videos I have watched on upgrading brass locomotives, no one adds wipers to the tender trucks UNLESS they want to add pick up to the other rail.

-Kevin

Living the dream.

  • Member since
    September 2003
  • 21,669 posts
Posted by Overmod on Saturday, April 8, 2023 4:56 PM

You maintain electrical conductivity by not going through the brass sideframe, or worse, microarcing through the bearings, at all.

Wipers to the back of the wheels give you a return path per axle; you can make contact with the axle for pickup on the uninsulated side which probably gives better contact but return will have to be via a different truck appropriately insulated.

Lots of threads here on various ways to do proper pickups and then maintain them; I expect to see many repeated (and illustrated) here.

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
  • 18,255 posts
Posted by SeeYou190 on Thursday, April 6, 2023 11:40 PM

I brush paint all my trucks. Just be careful where the paint ends up.

It doesn't hurt to add weight to the tender. It does help with electrical pick up.

-Kevin

Living the dream.

  • Member since
    June 2005
  • 4,368 posts
Posted by Darth Santa Fe on Thursday, April 6, 2023 9:03 PM

If you're spray painting, place a small piece of masking tape on each area that needs to make contact (bearings, bolster, attachment points).  Once you're done painting, peel the tape off.  That's really about all there is to it!

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painting brass parts
Posted by banjobenne1 on Thursday, April 6, 2023 8:37 PM

I have a new brass pair of tender trucks, some assembly required. So how do I paint these, and maintain electrical continuity from the wheel tread to the tender body bolster? Thank you very much.   

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