1/16 Bucyrus-Monighan Walking Dragline

[steamer]

Here's a link to some new small one's.
http://www.coldjet.com/en/products/d...FQsGbAodnBc1bA
The one we used the ice came in 4ft square tote and was dumped into a hopper on the machine. I see this small one will use blocks and it even shaves the ice for use. It did a great job of cleaning up the old car body and leaves no rust behind. Two years ago we used a truck mounted one to take the painted runway numbers up at the airbase here. we had a limited time to do it and it worked well. No damage to the concrete.
Rob

[9W Monighan]

Originally Posted by steamer

Here's a link to some new small one's.
http://www.coldjet.com/en/products/d...FQsGbAodnBc1bA
The one we used the ice came in 4ft square tote and was dumped into a hopper on the machine. I see this small one will use blocks and it even shaves the ice for use. It did a great job of cleaning up the old car body and leaves no rust behind. Two years ago we used a truck mounted one to take the painted runway numbers up at the airbase here. we had a limited time to do it and it worked well. No damage to the concrete.
Rob

Interesting, Pretty expensive I imagine, can one be rented?

[steamer]

Yes That's what we did and to be honest with you I can't remember the cost, although it was reasonable compared to sand. Sand on old car bodies can be very aggressive depending on the grit. I would guess in your area a look in the yellow pages might work under cleaning and blasting. Someone may have a setup and you could take the boom to them.

[ihbuilder]

Steve , look into walnut shells . I heard of that being used also

[9W Monighan]

Originally Posted by ihbuilder

Steve , look into walnut shells . I heard of that being used also

I thought of walnut too. I used corn cob media to blast my Caterpillar Sixty engine because I didn't want to tear it apart.

[eef7260]

Wow Steve

This is gone be one of the most detailed and beautiful booms i have seen.
I see you are searching for blasting methods i think you will be a extremely happy when that is done.

When the whole boom is done and blasted you need to sit down around it with a few good friends and simply look at it and enjoy it for hours and a have few beer.

Eef

[9W Monighan]

Originally Posted by eef7260

Wow Steve

This is gone be one of the most detailed and beautiful booms i have seen.
I see you are searching for blasting methods i think you will be a extremely happy when that is done.

When the whole boom is done and blasted you need to sit down around it with a few good friends and simply look at it and enjoy it for hours and a have few beer.

Eef

I'll be enjoying a few cold ones while digging soon. All I need is the boom lighting for the second shift

[modelman]

Steve-very nice as always! How did you drill accurately thru both pcs. of metal with the A-frame mounted at an angle. Or is this secret stuff?

[9W Monighan]

Originally Posted by modelman

Steve-very nice as always! How did you drill accurately thru both pcs. of metal with the A-frame mounted at an angle. Or is this secret stuff?

Well PUGS is partly correct. Originally I drilled the big plates stacked together with a 1/4'' hole. But when I did that I forgot about the 3deg angle. When I fabricated the channels I didn't drill them. When I set this up,I located the outer hole with my Co-ax indicator then I plunged a 1/4'' endmill down to spot face the next layer (channel) and that made the plate hole oblong. Next I went in with a 7/32'' screw machine drill because I don't have a long center drill handy and drilled through the second and got a longer drill bit for the third. Next came a 15/64'' drill then the 1/4'' reamer. Finally I drilled everything out with a 9/32'' drill. I would have bored to the finish size of 9/32'' if I had a longer boring tool that would fit in a 1/4'' hole. I need to make some bushings that fit the hole and will have the a 1/4'' bore for the shaft yet to come.
All the diagonal bracing in the "A" frame is going to be real fun to figure out. Currently I'm going over my designs from 3yrs ago making sure where to place all the holes for them.
I'm also looking into the wire rope needed. I need a total of 240' of 7x19 3/64'' for the boom. One of the 4 pieces is 167' and that's a small problem. I found I guy on ebay with 100' coils,none longer cheap. I'm going to have to bite the bullet and order from McMaster Carr now and it'll be around $215 instead of the $30 I checked at a local cable and sling co. near me and they couldn't get any either. They did have coated galvanized they use in race car parachutes I could have for next to nothing but too stiff and the OD slightly larger and won't fit in my sheaves.

[pugs]

Spot drill both layers

[td9clyde]

nice work on the point sounds like your having cable problems like me i can't find anything that isn't stiff like the 7 twist galvanized in 1/16th and thats kinda what i need just not so stiff..........keep up the awsome work

[9W Monighan]

Originally Posted by td9clyde

nice work on the point sounds like your having cable problems like me i can't find anything that isn't stiff like the 7 twist galvanized in 1/16th and thats kinda what i need just not so stiff..........keep up the awsome work

Use the .038'' 7x19 . 1/16 sounds out of scale for the Terex. It probably had 1/2 or 5/8'' originally. I have some and it's very flexible. Check McMaster Carr $1.69/ft.

[td9clyde]

Originally Posted by 9W Monighan

Use the .038'' 7x19 . 1/16 sounds out of scale for the Terex. It probably had 1/2 or 5/8'' originally. I have some and it's very flexible. Check McMaster Carr $1.69/ft.

lol i would but i don't really know the size yea the real cable is 5/8 i need to look at some in person i guess is what i am tryin to say lol

[eef7260]

Hi Steve

Did you try sailing boat shops , i was lucky there.
They use all sort of sizes , and small ones too for on those small 1 person sail boats.
Over here they even sell 1 mm ( i think thats something like 5/128 ) stainless steel.
And from there the sizes go up.
And it's very flexible as well because it has many small wires.
Give google a try for your area
here is an example http://www.westmarine.com/webapp/wcs...classNum=10244

Eef

[9W Monighan]

Originally Posted by eef7260

Hi Steve

Did you try sailing boat shops , i was lucky there.
They use all sort of sizes , and small ones too for on those small 1 person sail boats.
Over here they even sell 1 mm ( i think thats something like 5/128 ) stainless steel.
And from there the sizes go up.
And it's very flexible as well because it has many small wires.
Give google a try for your area
here is an example http://www.westmarine.com/webapp/wcs...classNum=10244

Eef

Pugs just sent me this outfit.http://www.savacable.com/pages/prod_01_00.html
I'm waiting for a call back. I see a 3/64'' 7x49 That would be really flexible.

[pugs]

Be sure and call Mcmaster and make sure its a continous roll you're buying. Seems like everytime I buy stuff from them its from a diff company and slightly diff stuff.

[9W Monighan]

Originally Posted by pugs

Be sure and call Mcmaster and make sure its a continous roll you're buying. Seems like everytime I buy stuff from them its from a diff company and slightly diff stuff.

You know I was thinking that too. If I could buy from a manufacturer I could be assured. The sling outfit tried 3 places for me and resulted the dreaded minimum qty. well I'd buy more if the price per foot would be lower.

[pugs]

Yeah and they have a 250' min on stock sizes and a $150. min order, which is less than the mcmaster. Plus they have fittings and thimbles too.

[modelman]

Steve-thanks for the explanation. I guess there is a way to do anything if you have the correct tools. I sometimes forget how big your model is and that makes a difference. On my little truck a 4-40 screw hole is a big hole.

[grumpygrady]

if you will check with your local beading store they have what you need
it will come in 7 ,21 or 28,49 strand beading wire was called foxtail a long time ago
or check fire mountain gems on the net one roll is 60 yards and around $20
they have it in colours and stainless and silver or gold if you have the money
even have it in nylon

or rio grande or any jewelry supply store

if you need i will post web address's tomorrow for it