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Renegade Prints (build Has Begun)

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Deleted member 17524

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Yup, happens all the time, just like that Jim.

Now we have 10 arms, all identical. I need to drill and tap the outer end for short studs. I want to just screw the balls on when they get here tomorrow.

"Billy G"

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uncle harry

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Bill, I think it's the same principle that every project requires a new tool, it makes no difference that the new tool has nothing to do with the project.;)
In Washington DC it's considered a rider on a Bill. The bill becomes larger than the cost of installing a new door.
 
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Bill, either I am missing something here or you are using some different mathematics than I am used to.
With 40 threads per inch for the elevation screw and nut:
- One turn of the elevation nut would change the elevation by .025" not .100"
- Ball to ball would be .0025"
- Ball to point would be .00125"

Maybe it's not that big of a deal, but since you had gone through all the math on your prints I thought I should point out the error before you get any further. At ten threads per inch, your calculations would have been correct.
 
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You are correct Terry. I used the math for the other way I had planned to do this. My bad and nice catch. I went to the 40 TPI to get the ultra fine movement. 10 TPI was my first choice.

"Billy G"
 
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When I worked on packaging equipment I made many machine modifications that utilized micrometer style adjustments and I saw the math "error" right away. I agree with your choice of 40TPI for the much finer adjustment capabilities, but somehow I missed the point in the thread where you changed your mind. Looking good so far!
 
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I did not document he change Terry. I forgot to and just moved on.

"Billy G"
 
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Changed the gears on the lathe to cut 40 TPI and cut a test thred to check the fit. Perfect. I will cut all three bearing towers tomorrow.

"Billy G"

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9 to go. Mail was late yesterday. Now I'm a day off schedule. Dang.

"Billy G"

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I can't catch a break here. Too many things being done at once. New front door, etc. Well 6 are done.

"Billy G"
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Done -- Take it apart, plug the threads and into the tumbler for 12 hours usin crushed Walnut shells for grit.

"Billy G"
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wrmiller

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Very nice. :aok:

Where did you source the balls?
 
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Elevation Tower is next. 2.750 dia. 2.625 high. 1.000 thru hole and a tapped 3/8-24 side hole plus profiling. I know --- profiling is against the law.

"Billy G"
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OD, height, starter hole and profile done. Need full bore dia. and threaded side hole then this part hits the tumbling barrel. Won't happen today, gotta start painting the rooms.

"Billy G"
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1 inch bore complete. Just the 3/8-24 threaded hole to go. Paint no come in. Breaks my heart ( not)

"Billy G"
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Tomorrow we start the bearing holder/elevation adj.

"Billy G"
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Nice easy 2 hours. 1"-40 TPI single cut. All that is left on the Elevation Adj. Tower is the lock screw. Time for second coffee.

"Billy G"

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The beginning of the decorative locking screw. 3/8-24 die cut threads. The head will be pressed on and be held fast with lock tite when done. This bolt will serve two purposes one, to lock the adj. and two, it will serve as a reference point in making the adjs. A small flat (1/4 wide full length ) must also be cut on the bearing holder for this unit to work properly.

"Billy G"
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Your thoughts please. This looks about right for the larger diameter of the handle. It is just a couple of bushings pushed over each other. The final piece will be brass and fluted lengthwise, not knurled. Pic #! is 3/4 inch, pic #2 is 5/8 inch. Which one?

"Billy G"

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T Bredehoft

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Large diameter may lead to over-torquing the snugging screw. That's (snugging) all you want, isn't it? Go with the 5/8
 
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Tom, it carries little value in holding the bearing riser in place. It serves to hold it from spinning while adjusting more than anything else. The weight of the top slide (50 lbs.) pushing down should take care of that. Thank you for the insight.

"Billy G"
 

wrmiller

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The 'scale' of the 5/8" piece blends well with the sizes of the other pieces within it's immediate vicinity IMO.

Hey, you asked for opinions... ;)
 
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Thank you. 5/8 it is. Cosmetics is important. Thank you Bill.

"Billy G"
 
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I have had my HF 5 lb. Tumbling barrel for about three years now and never used it. I even have forgotten why I bought it in the first place. I tried it yesterday with great success. The bushing to the right was almost black . After a few hours it has a nice clean finish on it. The smaller one in the middle is unfinished. The aluminum piece on the left came out with a fine brush like finish. I am more than satisfied with the outcome. I purposely put some tool marks in the aluminum and they are all gone. Corners are also still crisp.

The Brass Elevation Wheel parts are being done now. I will check them in about 4 hours.

"Billy G"

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wrmiller

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Hey Bill, would a vibratory tumbler work as well as your drum? I need to get a new one anyway, for shell casings and such, and was wondering if I should just order a second one for small machined parts?
 
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OOOPS, that's what I have Bill. To me a tumbler is a tumbler. HF has this one on sale now.

"Billy G"
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wrmiller

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Thanks. I'll take that as a 'yes'. :D
 
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Yup, it's a yes. Very little noise. You cannot hear it upstairs from the cellar.

"Billy G"
 
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Three lock nuts for the Leveling Feet -- 1/2-20 TPI. Need to flute these on the OD and they are done. Base Plate is due this week.

"Billy G"
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JimDawson

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Looking good Bill! :encourage:
Can't wait to see the rest.
 
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