Re: Have you ever heard a rubber Band....

GallopingGhostler Sat Feb 08, 2020 10:41 am

fredvon4 wrote:sniffed glue/dope/exhaust early childhood...

Explains why I was always happy building model airplanes and working on cars. Shocked

Yup, you opened a can of worms with rubber band belt driven locomotives, Bob. Laughing

Marleysky Sat Feb 08, 2020 1:13 pm

My first thought:

https://m.youtube.com/watch?v=DF-PHzLyiu4

Then Richard Pryor, which reminded me of this:

https://m.youtube.com/watch?v=k7LvjhASLIg

Now back to the buildshop for a fresh tube.

David S Sat Feb 08, 2020 1:54 pm

getback wrote:David's Trains ..

Thank you for posting my photos! When I first started too collect the Lone Star trains,I had too buy 2 Union Pacific F7 engines too make one complete engine.When the rubber bands break the wheel sets fall out of the bottom of the trucks.After fixing the first engine I only had one wheel set left........So I decided too make the 3 missing wheel sets with their plastic drive centers on my metel lathe.It took quite a while but I did make all the parts! Making brass N-scale wheels on the lathe was not fun!

David S

rsv1cox Sat Feb 08, 2020 2:20 pm

[quote="David S"]

getback wrote:David's Trains .. ........So I decided too make the 3 missing wheel sets with their plastic drive centers on my metel lathe.It took quite a while but I did make all the parts! Making brass N-scale wheels on the lathe was not fun!

David S

Wow Dave. High praise and a medal. I know it's difficult working on these small parts, for me at least.

Bob

David S Sat Feb 08, 2020 2:55 pm

[quote="rsv1cox"]

David S wrote:
getback wrote:David's Trains .. ........So I decided too make the 3 missing wheel sets with their plastic drive centers on my metel lathe.It took quite a while but I did make all the parts! Making brass N-scale wheels on the lathe was not fun!

David S

Wow Dave. High praise and a medal. I know it's difficult working on these small parts, for me at least.

Bob

I had too make a jig so that I could press the wheels on the plastic center and hold them in gauge! It took a long time from start to finish,but it was a quest that I had too do!

David S

getback Mon Feb 10, 2020 5:58 am

David S wrote:
rsv1cox wrote:
David S wrote:
getback wrote:David's Trains .. ........So I decided too make the 3 missing wheel sets with their plastic drive centers on my metel lathe.It took quite a while but I did make all the parts! Making brass N-scale wheels on the lathe was not fun!

David S

Wow Dave. High praise and a medal. I know it's difficult working on these small parts, for me at least.

Bob
I had too make a jig so that I could press the wheels on the plastic center and hold them in gauge! It took a long time from start to finish,but it was a quest that I had too do!

David S

rsv1cox Mon Feb 10, 2020 12:39 pm

The more I run these RB's the less impressed I am.

Takes a lot of throttle (voltage) to get them moving and they are temperamental and somewhat fragile. The drive shaft supporting posts are not bushed and subject to wear with the constant pull down stress of the rubber bands. I was going to bush them but the post sides are way to thin to drill out to accept the bushing. Trial bushing is on the right hand driveshaft toward the end. Perfect fit, too bad it won't work.

Have you ever heard a rubber Band.... - Page 2 P7260015

The steel coil pulley drive Varney however is a joy once I got it sorted out. I tried the three pulley drives, goes from slow to fast. Mid range about the best for over-all use. Got to find horns for it (very difficult) and detail it a bit.

It was balky/noisy after the rebuild, then I noticed an oil wick on the driveshaft common to most up scale HO motors. A little light oil on the pad cured all ills. Heavy with the die cast body and smooth and silent. Varney was a pioneer in HO and interesting to research.

Have you ever heard a rubber Band.... - Page 2 P7290024

Have you ever heard a rubber Band.... - Page 2 P7290023

Have you ever heard a rubber Band.... - Page 2 P7280016

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