Allen models Fitchburg Northern build by first timer

Where users can chronicle their builds. Start one thread and continue to add on to it.

Moderators: Harold_V, WJH, hwboivin3

mcjustis
Posts: 16
Joined: Mon Mar 22, 2021 11:49 am
Location: Columbus, Indiana
Contact:

Allen models Fitchburg Northern build by first timer

Post by mcjustis » Sat Apr 03, 2021 6:00 pm

Well, I got my plans the other day and made a start this morning. Got quite a bit done. This is my first loco build but I have been making i.c. and steam engines for years. I've been a machinist for a little over twenty years and a tinkerer most of my life so this is right up my alley. I have a very nice club just a few minutes up the road (Indiana Live Steamers) so hopefully will get over there this summer.
I plan on documenting the build on here. We'll see how it goes.
Thanks,
Martin
Attachments
FCE26AB7-634E-4F24-A6D7-80DFE7E45F1F.jpeg
79257085-19C2-4581-9356-2692FADA9797.jpeg

User avatar
Greg_Lewis
Posts: 2210
Joined: Wed Jan 15, 2003 2:44 pm
Location: Fresno, CA

Re: Allen models Fitchburg Northern build by first timer

Post by Greg_Lewis » Sat Apr 03, 2021 6:05 pm

Welcome Martin! We're eager to watch your progress. And a good choice of engine. I think it is well proportioned and a good size. Not too big, not too small.
Greg Lewis, Prop.
Eyeball Engineering — Home of the dull toolbit.
Our motto: "That looks about right."
Celebrating 30 years of turning perfectly good metal into bits of useless scrap.

User avatar
rmac
Posts: 280
Joined: Tue Jun 26, 2012 12:48 am
Location: Phoenix, Arizona

Re: Allen models Fitchburg Northern build by first timer

Post by rmac » Sat Apr 03, 2021 6:08 pm

Wait a minute. You made all those parts in one day?

-- Russell Mac

mcjustis
Posts: 16
Joined: Mon Mar 22, 2021 11:49 am
Location: Columbus, Indiana
Contact:

Re: Allen models Fitchburg Northern build by first timer

Post by mcjustis » Sat Apr 03, 2021 6:11 pm

Yep. Couple hours not including the time looking through the prints.
Martin

User avatar
Bill Shields
Posts: 6599
Joined: Fri Dec 21, 2007 4:57 am
Location: Somewhere in the World
Contact:

Re: Allen models Fitchburg Northern build by first timer

Post by Bill Shields » Sat Apr 03, 2021 8:37 pm

Really?

What are you using to cut the parts?
Too many things going on to bother listing them.

mcjustis
Posts: 16
Joined: Mon Mar 22, 2021 11:49 am
Location: Columbus, Indiana
Contact:

Re: Allen models Fitchburg Northern build by first timer

Post by mcjustis » Sat Apr 03, 2021 9:17 pm

Yes really using a waterjet. Takes a few minutes to generate the cut file, copy the part x # of times, tab together and bam. Easy peazy.

These are most of the sheet metal parts. All but the frame is stainless. I didn't have any 1/2" thick stainless so they're just a36 plate steel. I think I have all the 1/8" and 1/4" thick parts done. I still have to look through the plans a little more closely and see if I've missed anything.
I ordered the first couple sets of the castings from Allem models. Steve said he's out for a few more days but will get them out when he returns. If he ships as fast as he did the plans I should have castings in about a week and a half.

So let me start with what will I'm sure be a long list of dumb questions. On the plans the pistons and cylinder are both called out as 1 1/4, but if you look through Allen mdls site is shows 1 3/8" rings. Do most just bore out to 1.375? Is it just up to the builder?

Thanks
Martin

Pontiacguy1
Posts: 1215
Joined: Thu Apr 26, 2012 10:15 am
Location: Tennessee, USA

Re: Allen models Fitchburg Northern build by first timer

Post by Pontiacguy1 » Sun Apr 04, 2021 12:17 pm

those cylinders will take the 1.375" bore, and that is what you need. if you use the smaller 1 1/4" bore, your locomotive won't have enough power, and will stall out with a heavy load.

mcjustis
Posts: 16
Joined: Mon Mar 22, 2021 11:49 am
Location: Columbus, Indiana
Contact:

Re: Allen models Fitchburg Northern build by first timer

Post by mcjustis » Sun Apr 04, 2021 12:27 pm

Thanks for the help. I'll plan on the larger cylinder bores then.

Martin

mcjustis
Posts: 16
Joined: Mon Mar 22, 2021 11:49 am
Location: Columbus, Indiana
Contact:

Re: Allen models Fitchburg Northern build by first timer

Post by mcjustis » Mon Apr 05, 2021 11:05 am

Got the spring steel pieces all cut out and de-burred. Only about 3,543 parts left to go. I should be done by retirement.

Martin
Attachments
steelsprings.jpg

User avatar
NP317
Posts: 3035
Joined: Tue Jun 24, 2014 2:57 pm
Location: Northern Oregon

Re: Allen models Fitchburg Northern build by first timer

Post by NP317 » Mon Apr 05, 2021 7:09 pm

"I should be done by retirement."

Nope. There will always be something more to do...
RussN

User avatar
milwiron
Posts: 63
Joined: Sun Jun 07, 2020 1:52 pm

Re: Allen models Fitchburg Northern build by first timer

Post by milwiron » Tue Apr 06, 2021 12:38 pm

I am so jealous.
Before I retired one of the departments I had under my supervision was the Toolroom which included a 7 x 14 foot working area, 5-axis, Omax waterjet.
I did a lot of the shop programming for it plus I spent many free hours on my personal projects... all before starting another loco in retirement. Of course now I'm 100+ miles away from it.
Geez I miss that machine.
Keep up the great work!
Denny
"Measure twice, curse once."

mcjustis
Posts: 16
Joined: Mon Mar 22, 2021 11:49 am
Location: Columbus, Indiana
Contact:

Re: Allen models Fitchburg Northern build by first timer

Post by mcjustis » Sat Apr 10, 2021 9:15 am

Got a few small parts cut this morning. I need to get going on some mill work on all the frame parts.
Martin

.
Attachments
brake parts.jpg

Post Reply