Bettendorf trucks for Hopper Car

This sub forum is meant to be a model library. Feel free to add any information / pictures and your own reviews on models. If a topic on your model already exists, please add to it. Otherwise, start a new one.

Re: Bettendorf trucks for Hopper Car

Postby oldtrainguy » Wed Jun 29, 2016 11:54 pm

Mine arrived today. Look great!!
Don
oldtrainguy
 
Posts: 121
Images: 4
Joined: Tue Jul 22, 2014 3:24 pm
Location: Edmonton, Alberta, Canada

Re: Bettendorf trucks for Hopper Car

Postby modorney » Mon Jul 04, 2016 12:46 am

I just got mine and I have been using a paste made from Comet cleanser.

I then rub the truck up and down a piece of track, to "sand" out the journals.

After a half hour, I have a free-rolling truck.

I might suggest adding a little material around the journal - I managed to drop one and broke off half of one journal. An extra 5 or 10 thousandths might help?

Can you make a 16-pack, for us heavy users! :)
modorney
 
Posts: 182
Images: 1
Joined: Tue Mar 10, 2015 6:39 pm
Location: Near San Francisco

Re: Bettendorf trucks for Hopper Car

Postby dwyaneward » Mon Jul 04, 2016 9:12 am

modorney wrote:I just got mine and I have been using a paste made from Comet cleanser.

I then rub the truck up and down a piece of track, to "sand" out the journals.

After a half hour, I have a free-rolling truck.

I might suggest adding a little material around the journal - I managed to drop one and broke off half of one journal. An extra 5 or 10 thousandths might help?

Can you make a 16-pack, for us heavy users! :)


I was thing the same about using a abrasive paste, but have not try yet.

Can you provide a picture of the break and area that need additional material.
Dwyane Ward | Fairview, TX
------------------------------------
My TT Scale Modeling Blog
Texas & Pacific - Bonham Division in N Scale
KD Models -3D Printing
dwyaneward
 
Posts: 108
Images: 0
Joined: Sun Nov 08, 2009 9:31 pm
Location: Fairview, Texas

Re: Bettendorf trucks for Hopper Car

Postby modorney » Tue Jul 05, 2016 12:27 pm

One good one, and the one I broke.

TT4.jpg


Here's a different view with full sun.

TT1.jpg


A little more material around the bearing area might be good?

Meanwhile, I'll be less clumsy :)

This is a great product - I have four finished and three to go.
modorney
 
Posts: 182
Images: 1
Joined: Tue Mar 10, 2015 6:39 pm
Location: Near San Francisco

Re: Bettendorf trucks for Hopper Car

Postby modorney » Mon Jul 11, 2016 9:12 pm

All three finished and I ordered another 24.

I found a handy way to ream out the pockets - put on some abrasive goo (Comet), then put the truck on the handrail of an escalator.

I did notice that one side is tighter than the other? Only a few thousandths, but it takes longer to ream it out.
modorney
 
Posts: 182
Images: 1
Joined: Tue Mar 10, 2015 6:39 pm
Location: Near San Francisco

Re: Bettendorf trucks for Hopper Car

Postby modorney » Wed Aug 03, 2016 10:36 am

I have had good luck with the escalator trick.

One thing I did notice is that the round central boss (where the screw holds the truck to the car) has a unique attribute. If you hold it in the sun, one side seems to have "facets" - flat areas, that approximate the round profile. The other side does not have facets, but the individual lines from printing. Of course, this does not affect the product. But it indicates the side with the tighter axle.

I find that slightly squeezing the facet (tight) side makes the abrasive wear faster on that axle. Also, it is possible to simply hold just one axle on the moving escalator handrail, to finish the truck.
modorney
 
Posts: 182
Images: 1
Joined: Tue Mar 10, 2015 6:39 pm
Location: Near San Francisco

Re: Bettendorf trucks for Hopper Car

Postby CN-TT » Wed Aug 03, 2016 10:46 am

I'm using drills (http://peho-kkk.de/mshop/index.php/spur ... -heft.html) to widen the pockets for brass bearings. Maybe this is also helpful for your trucks.
User avatar
CN-TT
 
Posts: 378
Images: 99
Joined: Mon Mar 10, 2014 2:51 pm
Location: Vancouver, B.C.

Previous

Return to TT Scale Models

Who is online

Users browsing this forum: No registered users and 0 guests

cron