Photos and info on 1/8th scale model 5130 #12: Shovel front boomsand cylinders etc.

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Blog entry by hookfoot posted 12-16-2019 12:59 AM 996 reads 0 times favorited 1 comment Add to Favorites Watch
« Part 11: Booms, cylinders walkways and hand rails. Part 12 of Photos and info on 1/8th scale model 5130 series Part 13: Shovel bucket. »

To get the boom profiles I use the profile photos in the 5130 pamphlet. I enlarge them on my computer(with my wifes help). When I get the scale measurement between the end pivot points I am in business. When I am getting my measurements in the field I get a couple of cross sectional measurements for added security. These are anywhere I can get a good solid measurement.

These photos are the reach boom. The boom that connects to the shovel bucket. This next photo shows it with the ears glued in place for the connection to the main boom. Sorry I do not have any other photos of this operation..I make the ears from the main profile. You just need to add overlap material to be able to glue it in place. In the last photo you will see 3 clamps on the right end(the beveled end), this is where the ears are glued in place.

These pieces are for the glue up in the next photo to make one of the curves in this boom.
If you will look at photo 12 this glue up will go on the curve on the top edge.

These are the ears the lift cylinders attach to on the main boom. After i have the glue up completed, I lay out the profile on the bottom edge. Then I set my bandsaw on 10 degrees tomake the cut. Do the same on my 12in sander to finish. When i position these pieces I use a couple of cut of brad nails stuck in the mating side to locate at a later time. I mark the profile on the sides of the boom so I can tape this area before I paint.. This shows the tape areas. anf glue on pieces. All painted, ready for glue ons. Boom and hydraulic lines and attachment pieces.

On the lower right corner you will see a small circle that is not painted. This is a spacer arrangement that I use to take all of the play out of the female end of the cylinders so It does not rub the paint when the boom is worked.

The small black wire?insulation you see on this shot is the automatic greaser that is on this machine. Laydown area for painting of the glue on pieces. If you are not confused by now, then you are doing better than I am. Any questions I will try to answer. Enjoy and good night.

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5522 posts in 3444 days

#1 posted 12-16-2019 07:27 AM

The end result is amazing

-- Lifes good, Enjoy each new day...... Cheers from "On Top DownUnder" Crowie

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