Advertise Here - SUPPORT TMF

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - bparrish

Pages: [1] 2 3 ... 166
1
Layout Tours / Re: Janbouli's Home Layout The Kannewton & CC
« on: May 29, 2020, 06:47:40 PM »
OK............ you got me ! ! ! !

Either way this is very cool.

Thanx
Bob

2
Rolling Stock / Re: C&O K3, 2-8-2 Mikado Painting
« on: May 29, 2020, 06:38:01 PM »
Tom...

This is a great model.

Looking at the marker lamps below the Elessco water heater..... if you need glass jewel pieces for those please let me know.  I have most colors......

See ya
Bob

3
Layout Tours / Re: Janbouli's Home Layout The Kannewton & CC
« on: May 28, 2020, 07:42:09 PM »
Jan...........

You are getting close to my thread for interiors.

Go to scratch building on this forum and go down to paper interiors.

They are really easy and you have some great starting photos.

see ya
Bob

4
Scratchbuilding / Re: Operating Barber Pole
« on: May 25, 2020, 03:59:47 AM »
Having to do with controlling the motor speed.........

I had a rock crusher old Ohmite rheostat from the Pleistocene Epoch that I have carried around for over 50 years.

I was sure that I could finally use it..   WRONG ! ! ! !   The total resistance of that fishing sinker was only 17.5 Ohms.  That was enough to capably run an ancient open frame motor but not a modern can motor.  I tried putting other stuff in series with it and nothing would slow it down enough.

Ahaaaaaaaaaaaaa  ! ! ! !

Put a decoder on it.  It's a can motor.........DCC has do idea that it is really moving around the railroad or that it is even on the rails.

I assigned it a number that could not collide with anything else.   I chose the nowhere numbers that the phone company assigned to Hollywood thirty plus years ago................  555.........

Anytime you hear that number in some old 70's 0r 80's movie it is one of those BS numbers that won't go anywhere.

So............. my barber pole answers to 555.

Another cool feature of DCC is that most any system after about 2005 will run the motor on the last or most recent command......... So I start the pole running before I chose a locomotive.. get it running and then go to what ever I want to run over the rails.

My command station clears out anything left over when you shut down the whole system so 555 is idle when starting the next time.

I think this is as close as I will get to LCC command.

see ya
Bob


5
Scratchbuilding / Re: Operating Barber Pole
« on: May 24, 2020, 03:32:05 PM »
Karl....

The links are near the bottom on the first page of this thread.

Thanx for looking in.
Bob

6
Scratchbuilding / Re: Operating Barber Pole
« on: May 24, 2020, 01:31:11 AM »
Thom..............

A rotating gas sign would not be that tough after doing this animation. However.. I'm off the hook as they did not do that at the time I model.

I think ! ! ! !

Thanx for looking in.
Bob

7
Scratchbuilding / Re: Operating Barber Pole
« on: May 23, 2020, 12:32:44 PM »







Here are some links that should let you see it working. 


https://youtu.be/otI3BuBZTVE[/size]


https://youtu.be/ZJA2DfzHa8o

8
Scratchbuilding / Re: Operating Barber Pole
« on: May 23, 2020, 03:17:50 AM »
Tom....

The total height is less than one inch.

The spiral armature is three scale feet in HO.

Thanx for looking in

see ya
Bob


9
Scratchbuilding / Re: Operating Barber Pole
« on: May 22, 2020, 10:09:39 PM »
Now to start on the drive mechanism...

First is the support frame and gear case.  Yes........ that is a NWSL  36:1 locomotive drive.  I had one left over from some project that had a 3 mm spur gear.  I'm not even sure where I got or or why I had it left but it became a target.   The issue with this mechanism is that it needs to be close to no load.  The actual pole and armature is next to nothing so after that is how to make it low load.  Also there is the issue of alignment and the urge to make the pole wobble as it goes around.  So a continuous shaft was out.  What I cam up with will put up with the lower drive to only need to be close to the axis of the pole.



Then the next is the mounting bracket for the motor.  I chose this motor as it is too big for most of the locomotives I have so it got relegated.   You can see the fork mechanism and the horizontal bar that is threaded onto the armature of the pole.   later you will see that there is a slight angle bent into the drive fork so as to load the armature down while turning.  This is due to not having any thrust devise for up on the armature. Thus there is a constant slight load down.

My wife always went crazy when I took the kid's Fisher-Price toys apart to see how they worked.  They were a monument of simplicity.  John Siekirk will attest that there are only so many ways to get stuff done and you only need to out smart the situation and the raw materials at hand.



Here is a photo of the pole temporarily glued to the mechanism for testing purposes.



Ultimately the motor needed to be relocated.   There was too much motor buzz going into the frame and then into the bench work.  So I tore off the motor mount at the frame and put a long 1/8" steel rod with flex tube at each end.  This allowed me to move the motor to the bench work and two rubber couplings to insulate the vibration from the gear drive frame.  No one is allowed to be critical of my spiderweb wiring.


Also........ the motor is hot glued to the bench leg.  See ! ! ! !   Hot glue is an appropriate adhesive for modeling.

 I'll get the You Tube videos up by tomorrow.

see ya
Bob

10
Scratchbuilding / Re: Operating Barber Pole
« on: May 22, 2020, 06:38:28 PM »
Here is the original kit.  It is an HO gauge Evergreen gas pump kit.    I drilled out the center but the soft metal created some thrust problems so I had to deal with thrust washers and like that.  If I had to do it again I would turn it out of 3/16" brass rod and be done with it.   




The first photo is the original spindle that was made of styrene tube with a brass rod in the center.  I struggled with what to do for the stripes.  I tried rolling colored paper cut on a diagonal but it added too much to the overall diameter. Ultimately it did not fit inside the tube that came with the kit.

I then tried colored thread and this worked really well but again it filled the plastic tube from the kit.



So I settled on the clear plastic tubing that comes on paint brushes from good art supply places.



I then threw out the idea of styrene and went to 3/32" brass tube over a 062" brass rod and dipped it in white paint.   I stayed with the thread idea and tied a knot between the two colors of thread and glued it to the top.  Then pulled down the thread while spinning the armature.  I wound it well beyond the end which could be cleaned off later.  I dipped it in clear lacquer to seal down the thread.



Below is the completed armature with the cast base.  I later made another armature as this one scaled too tall at about four scale feet.



More later

see ya
Bob

11
Scratchbuilding / Re: Operating Barber Pole
« on: May 22, 2020, 03:11:52 PM »
Curt....


I'm working on that.... it's been a very long time since I tried to get something up on You Tube.

 Thanx
Bob

12
Scratchbuilding / Operating Barber Pole
« on: May 22, 2020, 01:36:38 PM »
I've had a lot of time at the bench since all of this sequestering.  I long ago had this idea of making up a barber pole.   I grew up when these things were everywhere.  We walked past them and gave little thought.

When you model 1900 era stuff there is not much opportunity to create animations on your railroad.  This project became a classic example of mission creep.  "let's see...... can I make this thing operate?"

The turning sleeve took three versions before I had one that I liked and the motor drive took on two before I got it controlled down to speed and got the motor noise out of it.

So here are some photos of the completed street scene.  I'll put up how I got there over the next days.

see ya
Bob







13
Mornin' all....

I'm still bunkered in.  Finished a big project last night that has taken two weeks of bench time and three versions to get one that worked right and was quiet.

I'll put up a complete thread later today.

Tom.... those photos of Chicago are great.  My grandfather was a wholesale produce merchant that had a store front on South Water Street that backed up to a dock on the Chicago River.  Just prior to the renumbering of the city in 1909 they moved to west Randolph Street. 


They took a LOT of produce from the Chicago Great Western at the Beaubein Street platforms near where these photos were taken.   That area is now under Grant park and the Prudential Building.  The IC had tracks and docks there also.


He also took a lot of stuff on the north side of the river at the Milwaukee freight terminals.   Initially, around 1903 he had to have a freight wagon bring fruit out of California from the 16th Street Santa Fe dock at Grove Street up to Water Street.   You put up some of those some time ago.


The Belt Line railroad changed all of that when they started moving stuff from the various yards around the city with one dedicated carrier rather than all of the different lines jousting for space in the Loop area.

Thanx
Bob

14
Dioramas / Re: Tiger Mountain
« on: May 21, 2020, 02:40:07 PM »
That sir is very cool.

Thanx
Bob

15
Baggage Car - Daily Chat / Re: Wed. May 20, 2020
« on: May 20, 2020, 02:54:39 PM »
John....

I have no idea where you are at in Michigan but I hope you are not affected by those dam failures.

double entendre' intended.

see ya
Bob

Pages: [1] 2 3 ... 166