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Author Topic: BT-6870 built by two old guys  (Read 13027 times)

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Offline Gearbox

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Re: BT-6870 built by two old guys
« Reply #20 on: April 23, 2016, 08:12:09 pm »
You guys aren't going to get too many details yet and the vid coming up may be from a bit far away .  will release details as you guys pick up on them . It is different than most builds .
A bunch of chainsaws a BT6870 processer and not near enough time

Offline bigblue12v

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Re: BT-6870 built by two old guys
« Reply #21 on: April 23, 2016, 09:51:08 pm »
Aww now don't be this way.... Propane powered? Aircraft engine? Rotary engine? Jet turbine? 3 phase electricity? Hydrogen powered? Diesel/electric hybrid? 2 cylinder John Deere engine? Steam engine (wood powered??!!! The irony!)
Kinetic splitter? You're killing me here....
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Offline Ox

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Re: BT-6870 built by two old guys
« Reply #22 on: April 24, 2016, 08:11:26 am »
It could be powered by a flux capacitor with a re-bi-cycling system for the headlight fluid, which in turn jettisons past the radiator at a speed just under the speed of light, allowing the manifold to spark sufficiently enough to capture the excess energy in a double wrapped electron storing device (a battery) which is used to energize a highly efficient light emitting diode (LED light), illuminating the lug nuts, thereby allowing the user to more easily check the hydraulic pressure in aforementioned lug nuts.  ;D
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Offline Gearbox

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Re: BT-6870 built by two old guys
« Reply #23 on: April 24, 2016, 09:53:04 am »
Gas powered with 91 @ 50 to 1 Amsoil . In a 272 Huskey . STAY TUNED
A bunch of chainsaws a BT6870 processer and not near enough time

Offline svart ole

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Re: BT-6870 built by two old guys
« Reply #24 on: April 24, 2016, 11:52:13 am »
I thought about this engine but the only place it would fit was on the gooseneck and that was not a option. Picture the guy in the blue hard hat sitting on the deck with a coffee cut in his hand. This is a long video so be warned.



There is one motor other than the saw that at this point is a 272 Husky with the option of other saws like a 394XP. Only one hydraulic device driven by the second gas engine and the rest is driven by DC gear reduction motors.

We have wet weather for the next few days with any luck I can post a video by the end of the coming week. As they say a picture is worth a thousand words. We promise not to keep you in the dark for too much longer. Maybe just a little bit. I want to show the critter in operation, I figure that will clear things up to some extent.  The setup is somewhat unconventional so there is no fun in just telling the whole story all at once, there is no entertainment value in that.

As a side note the tank engine in the video link above was used to run a sawmill at one point. NOT by me. Having a MOS of 67N20 the guy who bought it wanted me to get it started for him so he knew it would run. Had fun doing it. 

Some history on the engine here.  http://www.enginehistory.org/Diesels/Ch3.pdf
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Offline svart ole

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Re: BT-6870 built by two old guys
« Reply #25 on: April 25, 2016, 09:48:31 am »
Raining now and looks like it will for a day or two so outdoor video on on hold for a bit. But figured we needed some signs for the side of the machine. Tossed some tamarack in the boiler and warmed up the garage. Figured a nice wood V carved sign would be nice. Now that can be a bit of a job but not if you use the right tool. So here is a video of that process. Life is a learning process and sometimes embracing new technology is not a bad thing. As soon as the paint drys enough I will take a picture of the finished product.



My wife said I collect junk, I told her I am a amateur industrial archaeologist just trying to save valuable artifacts.

Offline WmFritz

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Re: BT-6870 built by two old guys
« Reply #26 on: April 25, 2016, 10:22:10 am »
You guys are killing me with suspense! The video is private.  :'(
~Bill

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Offline Shotgun

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Re: BT-6870 built by two old guys
« Reply #27 on: April 25, 2016, 10:26:50 am »
Can't get to the video.  ;)
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Offline svart ole

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Re: BT-6870 built by two old guys
« Reply #28 on: April 25, 2016, 10:34:52 am »
First time putting a video on YouTube. Changed it to unlisted. Hope that works. I have not had my coffee yet so I am somewhat dysfunctional.
Well somewhat more than usual.
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Offline Jeff

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Re: BT-6870 built by two old guys
« Reply #29 on: April 25, 2016, 10:36:47 am »
How does the plastic snowman fit into all of this? :)
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Offline Gearbox

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Re: BT-6870 built by two old guys
« Reply #30 on: April 25, 2016, 10:42:44 am »
Jeff that snowman is the quality control engineer .
A bunch of chainsaws a BT6870 processer and not near enough time

Offline WmFritz

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Re: BT-6870 built by two old guys
« Reply #31 on: April 25, 2016, 11:25:05 am »
Svart ole, that engine story was an interesting read. At 6 a gallon for diesel, it was less then $12.00  to fly from Dallas to D.C. I looked  at a snowmobile in Naubinway Mi, with a tank engine similar to this one. I didn't look at it close enough to remember if it was gas or diesel, but now I'm curious enough to go look again.

BTW... what does MOS 67N20 mean?
~Bill

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1959 Detroit built Ferguson TO35

Offline svart ole

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Re: BT-6870 built by two old guys
« Reply #32 on: April 25, 2016, 01:16:48 pm »
WmFritz

It is a Army Military Occupational Specialty 67N20 is a Single Engine Turbine Powered Utility Helicopter Mechanic (UH-1 Huey). With that you can be a Crew Chief/Doorgunner on UH-1B model gunships Among other things the prerequisite for that MOS was you had to have a MOS of 67A10 Basic Fixed Wing Aircraft Mechanic first. As a bonus it got you a all expense paid trip to South East Asia. 
My wife said I collect junk, I told her I am a amateur industrial archaeologist just trying to save valuable artifacts.

Offline svart ole

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Re: BT-6870 built by two old guys
« Reply #33 on: April 25, 2016, 01:30:57 pm »
Ok guys here is what you end up with after all that commotion. This is one of two that where cut out of one 8 ft. 2X10 with a 90 degree V bit at one time after making a leveling pass with a surfacing bit. You have to V carve into flat stock or the image can end up very distorted as the width of the cuts are not correct when you are done. Then it is a trip to the planer or sander and hope for the best. If you skip that it is a good way of wasting a very expensive chunk of imported hardwood. You only do that once. As my Dad would say, "You never learn a valuable lesson unless it costs you something".

Yes, I do make signs.

My wife said I collect junk, I told her I am a amateur industrial archaeologist just trying to save valuable artifacts.

Offline WmFritz

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Re: BT-6870 built by two old guys
« Reply #34 on: April 25, 2016, 02:51:23 pm »
I'm glad I asked and thank you for your service. I've never heard it expressed as an 'all inclusive paid vacation before.'  ;)
~Bill

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Offline svart ole

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Re: BT-6870 built by two old guys
« Reply #35 on: April 25, 2016, 05:54:37 pm »
Ok so it quit raining for a bit and we put the signs on. Took a few pictures. I will feed you some a bit at a time.



Signs installed




Feed Trough Pusher Drive









My wife said I collect junk, I told her I am a amateur industrial archaeologist just trying to save valuable artifacts.

Offline Logger RK

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Re: BT-6870 built by two old guys
« Reply #36 on: April 25, 2016, 09:38:03 pm »
Looks well built. It'll be nice to see it working. You's get double thumbs up from me just for the color  ::)

Offline r.man

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Re: BT-6870 built by two old guys
« Reply #37 on: April 25, 2016, 10:39:45 pm »
Hey B or T, what are the DC motors off of?
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Offline svart ole

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Re: BT-6870 built by two old guys
« Reply #38 on: April 25, 2016, 11:18:47 pm »
Think about winch
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Offline svart ole

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Re: BT-6870 built by two old guys
« Reply #39 on: April 26, 2016, 12:35:46 am »
Next up we have the drive on the descrambler deck. Same DC drive as on the pusher.

My wife said I collect junk, I told her I am a amateur industrial archaeologist just trying to save valuable artifacts.