Unit Cable Hoe

[Stuff]

ooooooooooooohhhhhhooooooooooooooooo looks purdy!

[doodlebug]

Hey Scott, send me a pm, I have a bunch of picture's to send with measurement's. Can't scan the borrowed literature until I replace my computer, gone senile! .NetFramework is eating my lunch.
Later, Neil#2 aka doodlebug.

[SmallHaul]

Originally Posted by Stuff

ooooooooooooohhhhhhooooooooooooooooo looks purdy!

Originally Posted by doodlebug

Hey Scott, send me a pm, I have a bunch of picture's to send with measurement's. Can't scan the borrowed literature until I replace my computer, gone senile! .NetFramework is eating my lunch.
Later, Neil#2 aka doodlebug.

PM sent. Thanks Neil!

[SmallHaul]

Neil, thank you so much the pictures are great!

One thing that bothered me about my model is that I couldn't extend the bucket all the way out if i wanted to and all full scale cable backhoes seem to be able to? And now after seeing your pic I realize what is wrong...the top pulley arm mount pivots just like the bucket pulley arm, I have mine solid mounted... Doh!



The other thing that I didn't like about my model was that the top (hoist) cable lifts out of the pulley when you raise the boom too high and after looking at your picture I see that the full scale Unit has a small drum on top of the auxiliary boom that keeps the cable from raising up!



Thanks Neil! Two thumbs up!

[Stuff]

nice pictures! this is gonna be an extra circular project now? lol

[doodlebug]

Hey Scott glad to help, let me know if you need different angle's or better lighting, LOL!
Ordered a new computer today, hope to have the lit. scanned later next week.
Later, Neil#2 aka doodlebug.

[Stuff]

found some pictures and videos. might have seen them already. one video is kinda scary...

Scary video of guy unloading a Unit Crane tracked
http://www.youtube.com/watch?v=83tSiHyAQ5A

Clam shell in action
http://www.youtube.com/watch?v=CZUR9iPPTgc

Unit crane model on a truck
http://www.doepketoy.com/?tag=doepke-unit-crane

Several configurations, from crane to bucket to excavator
http://www.doepketoy.com/?tag=unit-crane

More links
http://www.constructioncollector.com...rial-Unit.html
http://www.ccmodels.com/closed-crane...-CableHoe.html
http://www.gerhartmachinery.com/equi...l-617-sn65186/
http://www.bigoldiron.com/cranes.html

also some classic toy parts
http://store.classictintoy.com/mm5/m...tore_Code=CTTC
http://thomastoysantiquetoyparts.com/

[td9clyde]

i like this build going to be interesting can't wait to see it all together and working........................i thought i was into the old stuff like 1960's but SmallHaul , you got me beat lol on the old style equipment models

[D8R]

Nice with those chains, got to remember that if I build a suitable model.
Papy, nice truck, is it from France?
Dan

[Papy]

Originally Posted by D8R

...Papy, nice truck, is it from France?
Dan

Switzerland.....but you were not so far, because it's based just in the neighborhood of the french border.

As SmallHaul suggested, I opened a dedicated thread, so you get more of the story here

[SmallHaul]

Originally Posted by td9clyde

i like this build going to be interesting can't wait to see it all together and working........................i thought i was into the old stuff like 1960's but SmallHaul , you got me beat lol on the old style equipment models

Thanks Henry, I really like how complex these old machines are. The more I learn about them the more I realize how much engineering goes into one.

Originally Posted by doodlebug

Hey Scott glad to help, let me know if you need different angle's or better lighting, LOL!
Ordered a new computer today, hope to have the lit. scanned later next week.
Later, Neil#2 aka doodlebug.

Neil, I just got a 1950's Unit repair manual that has great photos and documentation but, there are no measurements at all... so, all the measurements you took were very helpful. I calculated all of your numbers to 1/16 scale and my prototype boom & stick are a little over sized but, not by much. When you get the cab roof to floor measurement We'll see how close the Doepke toy actually is to 1/16.

Originally Posted by Stuff

found some pictures and videos. might have seen them already. one video is kinda scary...

Thanks for the links Dean.

Originally Posted by D8R

Nice with those chains, got to remember that if I build a suitable model.
Dan

Thanks Dan, I decided to make the rotate chain drive too, using #25 chain. It will be easy to setup and it should be very reliable. I just ordered the sprockets for the rotate setup today.

[doodlebug]

Hey Scott, bottom of "house" to top of cab is 6' 11 1/4" high, or 9' 10'' from the ground. Track's are 2' 4 1/4'' high,
not the version you're building. Ground to bottom of house 2' 10 1/4'' Track length 10' 1'' or 10' 10'' high flotation version. Track shoe width, 16'', 20'', or 22'' long track version-flotation. Width of track's outside, 8' 0'', 8' 8'', 9' 0''. House is 8' 0'' wide.
Hope this help's. Later, Neil#2 aka doodlebug.

[SmallHaul]

Neil,

The Doepke Cab is 5 inches tall so, times 16 it would be 80" and Your measurement is 83 1/4". The width of the body is 6 inches and times 16 is 96" perfect to your 8 feet wide. So, it is accurate to 1/16 scale. Now I'll make the prototype boom match your numbers and make sure I am happy with how it digs.

Thanks Neil!

[doodlebug]

Hey Scott, do you need the "arch on the boom"? Let me know!
Later, Neil#2 aka doodlebug

[SmallHaul]

Originally Posted by doodlebug

Hey Scott, do you need the "arch on the boom"? Let me know!
Later, Neil#2 aka doodlebug

Yes, if you can that would be great! I ordered 1/2 inch square tube for the boom and stick because after looking at the boom in the Unit 357 maintenance manual it looks to be about right. Did you measure the width and length (not counting the teeth) of the bucket? I wonder how far off mine is.

[ihbuilder]

Scott , you OK for the boom now ? My guy didn't get back to me yet ( typical ) I think I'll be going elsewhere in the future . your doing a good job .

IHSteve

[SmallHaul]

Originally Posted by ihbuilder

Scott , you OK for the boom now ? My guy didn't get back to me yet ( typical ) I think I'll be going elsewhere in the future . your doing a good job .

IHSteve

Steve, I think the 1/2" square tube is gonna be fine. Thanks for trying.

[doodlebug]

Hey Scott, I'll go by tomorrow LOL. Just got off night shift, the contractor forgot to cancel dump truck's tonight. Got 2 hour's for showing up!
Later, Neil#2 aka doodlebug

[doodlebug]

Hey Scott, the bucket is 24'', 3 teeth. The dipper end of the boom, to the center of "arch'' is approx 10' 1'' from the pin (dipper arm) the the fork/drag pulley area (picture #1)
The boom is 21 1/2" wide, 10" tall, the gap in the forked end is 11 1/8''.
The arch in the boom is 22'-23' degree's.

Later, Neil#2 aka doodlebug

[SmallHaul]

Wow, the bucket is only 24" wide? That is only 1 1/2 inches in 1/16 scale. The bucket I made is 2 inches wide and looks about right.

Thanks for the measurements Neil, I went through all of your numbers today and set the hoe up with your measurements. It works and digs great set to scale size. I packed some dirt hard and added water to make it thick & heavy, loaded one of the Tonkas and it did very well. It should really dig well when I get teeth on the bucket.