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Why do metal wheels perform better than plastic?

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  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
  • 18,255 posts
Posted by SeeYou190 on Friday, November 5, 2021 12:06 PM

And here goes another thread.

In 3-2-1...

-Kevin

Living the dream.

  • Member since
    September 2004
  • From: Dearborn Station
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Posted by richhotrain on Friday, November 5, 2021 6:22 PM

I have my own thoughts about whether or not the Micro Mark truck tuner is a reamer, but I am not going to take sides here to continue the debate.

Suffice it to say that when I have a plastic truck that seems to "drag" its wheelset(s), I use the Micro Mark truck tuner. It does produce what I refer to as plastic "shavings" from the truck, and the result is a smoother rolling truck.

Rich

Alton Junction

  • Member since
    November 2006
  • From: NW Pa Snow-belt.
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Posted by ricktrains4824 on Friday, November 5, 2021 7:07 PM

richhotrain

I have my own thoughts about whether or not the Micro Mark truck tuner is a reamer, but I am not going to take sides here to continue the debate.

Suffice it to say that when I have a plastic truck that seems to "drag" its wheelset(s), I use the Micro Mark truck tuner. It does produce what I refer to as plastic "shavings" from the truck, and the result is a smoother rolling truck.

Rich

 

Ditto.

And quite smooth and very free rolling at that!

I will only use the truck tuner if I feel it could be better performing after. Not every truck needs this done.

Ricky W.

HO scale Proto-freelancer.

My Railroad rules:

1: It's my railroad, my rules.

2: It's for having fun and enjoyment.

3: Any objections, consult above rules.

  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
  • 18,255 posts
Posted by SeeYou190 on Friday, November 5, 2021 11:56 PM

Lastspikemike

As I predicted, we get a treatise on what is or is not reaming and what is or is not a reamer.

Here's a reasonably priced specialty conical reamer:

https://www.radiushdd.com/12-fluted-reamer-conical-2-3-8-reg-box-x-30k-swivel

The micro Mark tool will only cut into the "bearing" if the cone is not 60 degrees or has some sort of burr or irregularity.  When it does cut the operation is indistinguishable from reaming.

To ream may include altering a conical shaped recess. The process of reaming is not limited to enlarging a bore or cylindrical hole. Any time you ream something you are using a reamer.  

My point was to reassure those uncertain as to how the micro mark tool works that the tool is pretty much foolproof. You'd have you really work at enlarging an already perfectly smooth 60 degree cone shaped recess in a plastic truck. If the recess isn't already smooth and at 60 degrees then that's why you're using the tool.

Reamers are equally foolproof because of their design. In fact that's why they are designed to be that way and to do that job. 

 

Good heavens!

There was no treatise on what is or is not reaming and what is or is not a reamer.

One of us rolled their eyes, I gave my qualifications as a self-proclaimed-machinist, one of us gave the dictonary definition on what is reaming, and someone else posted an example of a reamer they were familiar with.

There was no discord.

There was no disagreement.

There were no insults.

No one said you were wrong.

The only treatise is contained in your response above.

Still, you are so determined to sow your seeds of discourse and create argument, you return with the insanity that your prediction came true. Wholly absurd. 

No one took your bait this time.

-Kevin

Living the dream.

  • Member since
    September 2004
  • From: Dearborn Station
  • 24,038 posts
Posted by richhotrain on Saturday, November 6, 2021 9:30 AM

Lastspikemike
 

To complete the thought does the truck tuner continue to produce plastic shavings if you continue to turn the cutter or does it seem to stop producing shavings at some point?

Unless the user forces it, it stops producing shavings after a few turns of the tool.

Lastspikemike
Put another way, does the process of tuning using this cutting tool seem to face a natural completion point or do you have to be careful not to conduct the operation for too long or the tool just keeps on cutting?

Not sure if it would keep on cutting if you don't stop, but a few twists of the tool without forcing it does the job quite nicely.

Lastspikemike
The photos of the tool seem to show a fixed length shaft which replaces the axle set so logically it cannot cut deeper than that fixed length unless you deliberately press the cutter end into the bearing cone. I guess I had assumed it was somehow spring loaded but either way the tool has a designed in length limit which would ensure it only cuts to the correct finished axle length.

It is a fixed lenght and fits easily into an HO scale truck with the wheel set removed. Then, you simply give the tool a few twists.

Lastspikemike
And that makes me wonder if one should buy the truck pliers at the same time. Getting axles in and out of plastic trucks can be tricky at the best of times. Makes me wonder how easily the tuning tool is to insert and remove without marking up the inside of the truck. 

The tuning tool is easy to insert once the wheelset is removed. 

 

 

Alton Junction

  • Member since
    May 2019
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Posted by BEAUSABRE on Saturday, November 6, 2021 10:34 AM

I have cars that go all the way back to the Sixties (mainly AHM, a few Athearn) so I just got a Truck Tuner to ream/cut/bore my trucks into proper contour before installing metal wheel sets. What gets my goat (Bahhhh!) is that I'm paying $17 or so for four sets to equip two cars that probably cost around $1.95 back in the day. 1) Yes, I know all about inflation 2) No, I want to upgrade them. They are the survivors of a culling process of  what I had back then, so they mean something to me. It just struck me as something humorous and worth a wry chuckle. How our expectations have gone up. I'm sure there are other others out there in the same boat who will grin at what I am saying...(and there's the price of Kadees, too)

  • Member since
    November 2006
  • From: NW Pa Snow-belt.
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Posted by ricktrains4824 on Saturday, November 6, 2021 12:15 PM

To answer the question on the Truck Tuner - It stops cutting once the correct contour is present. Spin it all you want, once it's the correct contour it will no longer cut.

The only way that it continues to cut is if you forcably squeeze the truck sides in onto the tools cutting edge.

Based only on my experiences using said tool, as usual YMMV.

Ricky W.

HO scale Proto-freelancer.

My Railroad rules:

1: It's my railroad, my rules.

2: It's for having fun and enjoyment.

3: Any objections, consult above rules.

  • Member since
    January 2019
  • 2,560 posts
Posted by John-NYBW on Saturday, November 6, 2021 12:22 PM

My own experience with the tuner tells me that if you maintain constant pressure on the sides of the truck, it will stop cutting once it reaches the ideal contour. I've never tried it but my guess is if you squeeze it tighter, it might shave more plastic but I've never had a reason to try that. I apply firm pressure on the sides but I don't white knuckle it. 

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