Finally a new loco start

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docnjoj
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Finally a new loco start

Postby docnjoj » Thu Jun 01, 2017 6:03 pm

After some years of not finishing stuff I decided to start a Baby Mallet. Here are the results of this start. The motor is a Faulhaber geared 100:1 with a coreless motor. It runs slow but very steady.
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David (Doc)
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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby lesmond » Thu Jun 01, 2017 7:12 pm

Watching closely... go otherDoc :)
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Re: Finally a new loco start

Postby PeterH » Thu Jun 01, 2017 8:54 pm

:D :D :D
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Re: Finally a new loco start

Postby More_Cats_Than_Sense » Sat Jun 03, 2017 11:37 am

I've got a couple of these loco chassis and was wondering how to re-motor them to make them suitable for use :D
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Re: Finally a new loco start

Postby docnjoj » Sat Jun 03, 2017 1:16 pm

Hey Cats
I kinda got lucky with the motor (cheap) and had a selection of brass metric tubing from somewhere so the 2mm shaft fit the worm perfectly and I just had to glue the motor in and a bushing on the other end into the existing motor mount. Works far better than the original motor, but slow (like maximum of about 10 scale mph. That is OK by me. I'm slow too.
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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby KEG » Sat Jun 03, 2017 5:29 pm

What scale?

How long will the modell be?
What minimum radius will it need?

Where are the chassi from?

Trackpower oder Dead Rails?

Have Fun

Juergen

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Re: Finally a new loco start

Postby docnjoj » Sun Jun 04, 2017 10:35 am

Hey Juergen

Scale should be 1/2" +/-. Model will be about 7" long. Deadrail of course. and we will see about minimum radius . Hopefully around 10".
otherDoc
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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby docnjoj » Fri Jun 09, 2017 6:42 pm

Well I managed to get the bare chassis together using of all things, gum, to hold it. I couldn't find the BlueTac. Gum is far stickier, but it did work. It still has a "Hitch in it's getalong" so I am going to alternate plan B. Photos in a few minutes. We are waiting for the post where the new wheel puller is coming. This allows me to use the correct axle to more easily put on the valve gear. I did the practice run with wheels with threaded holes for the screws, and it was a nightmare, with much gnashing of teeth and yelling at it.
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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby lesmond » Fri Jun 09, 2017 7:53 pm

Nice one, and good use of gum. I've a big ball of blutak never too far away.

It wouldn't be any fun without teeth gnashing and a few yells :)

Looking forward to the pics.

Les
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Re: Finally a new loco start

Postby docnjoj » Sat Jun 10, 2017 8:55 am

gotta get some loctite and the bluetac. Monday will return with more tales from the dark side.
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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby docnjoj » Fri Jun 16, 2017 8:06 pm

Here is the proof of concept in rough and ready format. My wife is the cinematographer.

otherDoc

https://youtu.be/po844MufOs0

It actually ran quite smooth but either the camera or Youtube screws up the motion. Oh well.
David (Doc)
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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby docnjoj » Tue Jun 27, 2017 10:01 pm

Here is a new test subject motor but I think even this one will be too slow at 200 rpm and the shaft. Testing will start as soon as I can get those little teeny wires soldered from the Deltang receiver. The big screw will be cut down after it is tightened on the shaft.
otherDoc

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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby docnjoj » Thu Jul 06, 2017 5:56 pm

This is the final (we hope) version ready to go in a chassis. I am waiting for the actual Shapeways loco t0 determine the chassis size. It is supposed to arrive tomorrow. This chassis has the faster motor and the radio gear attached and seems to run fine. Utube over the weekend.
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Re: Finally a new loco start

Postby PeterH » Thu Jul 06, 2017 9:31 pm

Good work. I'm looking forward to seeing this with a body.
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Re: Finally a new loco start

Postby lesmond » Thu Jul 06, 2017 9:36 pm

That looks good. Can't wait to see the body.
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Re: Finally a new loco start

Postby docnjoj » Fri Jul 07, 2017 11:36 am

It should arrive in today's post. I'll put it up tomorrow AM. Now I actually have to build the chassis. Uh oh!
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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby Kerluk » Fri Jul 07, 2017 4:40 pm

Nice start. Can't wait for tomorrow morning. :D
You know what ? You're all better than me but I'll never give up ! :lol:
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Re: Finally a new loco start

Postby docnjoj » Fri Jul 07, 2017 7:13 pm

Preview: Looks like the 2 riva chasses will fit but they need some blacksmithing first to carve off anything that doesn't look like a Mallet.
Stay tuned.
otherDoc

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David (Doc)
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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby lesmond » Sat Jul 08, 2017 6:59 am

Ahh.. now that is NICE :) :)
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Re: Finally a new loco start

Postby Kerluk » Sat Jul 08, 2017 9:03 am

Really nice ! :D
You know what ? You're all better than me but I'll never give up ! :lol:
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Re: Finally a new loco start

Postby docnjoj » Sun Jul 09, 2017 12:39 pm

Finally proof of concept. Now all I need to do is attach the rear chassis, swivel the front one, add a ton of lead, stick on some details and paint the darn thing. Probably a year of work the way I do it at turtle speed. Oh yeah stick the radio in.
otherDoc
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David (Doc)
Fairhope, AL USA
After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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lesmond
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Re: Finally a new loco start

Postby lesmond » Sun Jul 09, 2017 5:40 pm

That is going to be a very fine locomotive indeed. Looks excellent :)
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docnjoj
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Re: Finally a new loco start

Postby docnjoj » Sun Jul 09, 2017 7:31 pm

Thanks Les. I am now thinking it may have some potential, if I can just focus on it for a while.
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After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)

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Re: Finally a new loco start

Postby chris69 » Sun Jul 16, 2017 8:02 pm

Hi David,
where did you get the gear motors? The one in this picture( IMG_1685.JPG (105.44 KiB) Viewed 399 times) looks like one I could use if they have them in 50/60 RPMs.
Best
Chris
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docnjoj
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Re: Finally a new loco start

Postby docnjoj » Mon Jul 17, 2017 11:08 am

I mainly used Faulhaber geared Motors and looked them up on Ebay. I did get and Escap one also and they were all between $10 and $20. They have some very expensive ones which I disregarded. Pretty much any ratio you want for slow speeds.
otherDoc
David (Doc)
Fairhope, AL USA
After extensive recalculation, I have determined that the meaning of life is NOT 42! The secret of life, however is "enjoying the passage of time" (James Taylor)


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