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Cory Othen
Membership#10953 -
Yes the parts above are assembled backwards so go easy on me it was for display only.
JoeComment
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Time to move on this project ! The rear rim is in the mail, as soon as it shows I will lace it to assure the spokes will work and then disassemble it to send it off with every thing else for paint. Work has focused on all the little items to make sure they fit together and have good appearance. I still plan on using as many original parts as possible even if they have a blem in them. This bike will have as many real HD parts as possible. Technically not an all out show bike but a nice appearance will be my goal. Time and original parts availability force me to make this decision. I want to be on an old bike not one that just looks old. Most importantly I want to be on the bike for the run, a reasonable priority.
I spent much of my time this evening fixing a reproduction idler sprocket set carrier. On a single speed bike this is what you would refer to as the transmission. Nothing really fit together as I would have it nor would it work as delivered. After several hours of work the device began to operate fine. A little cut here and a little tuck there. I gave thought to the whole unit and decided to use a worn out unit that I will rebuild or remanufacture from scratch. The design of the bearing unit is essentially the same as the freewheel clutch bearing assembly a rebuild will be of the same style and process as used on that item. Time to sleep on it.
JoeComment
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Materials and supplies ran short so, to the tele. for filling orders of threading tools D.O.M. steel tubing more 1/2 P.H.T. 4140 round stock for floor board hardware and bearings for the countershaft sprocket assembly.
The only original c.shaft sprocket bearing hub I have was worn beyond usage so I decided to toss it into the lathe and make necessary modifications to install modern bearing like I did on the Freewheel clutch. This proved to be a challenge with an eight tooth splined O.D. hub. I was unable to hold onto the hub in a normal fashion. A "pot chuck " was made but it sprung out of round so bad when split open that it was not usable.
With a six jaw chuck on the Monarch I was able to remove two opposing jaws and hold onto the minor diameter of the spline. This worked only good enough to ruff machine the bearing pockets. Out of round conditions prohibited me from finishing the bores. The bores will be I.D. ground on a magnetic chuck to a true round bore.
More parts preparation for the outsourcing of paint and plating took place today also. Finally I finished my day replacing the stud on the clutch pedal, I first had to make a new stud. Tomorrow I will heat it up and swedge it over with the air riveter and a round formed bucking head just as the original......
Oh I forgot, who ever created the cliche hard as nails probably never has machined 65 R c scale steel before, this race is hard. See following photos when our good friend Cory responds
JoeLast edited by Slojo; 05-05-2010, 11:20 PM.Comment
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Here we go..........
Cory Othen
Membership#10953Comment
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Deliveries equall and aid in progress.
Ok... U.P.S. showed today and delivered the seat from Heather's Leathers, a rear brake plate from Pat Murphy, the D.O.M. steel for the seat post tube and more 4140 P.H.T. steel for hardware, this time in 1/2 diameter for larger screws like floor board studs.
I went on the road for I.D. grinding service, my friends at Precision Spindle took care of me right away and I will be able to pick up the part tomorrow morning. McGuire spring is making me a new set of seat post springs they will also be ready tomorrow what great service from these local shops.
Tonight most of the programing for the fork rocker studs was developed. Much like previous programs this program is a derivative of the trans. shaft program (which came from the fillester screw program) due to their likeness. The studs will be made of an alloy called Quad XR this steel is a special blend of alloys that exceed the strength of many common high strength alloys and is capable of 60 Rc after heat treating. Once off the Okuma, the studs will be sent to heat treat for a 60 - 62 Rc and then back into the Okuma for hard turning or to the O.D. grinder for finishing of the bearing surface. The threads will be masked to prevent them from becoming to hard. A hardened thread will get brittle and fragment for the slightest reason.
Still no 1914 cylinders and 15 16 gear chest.
JoeComment
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Ghost in process photos May 6th
Aloha Ghost fans, Cory and I are playing photo tag team for Joe, 1 of 3 coming up ... I hope...Comment
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Ghost in process photos May 6th
Aloha Ghost fans, Cory and I are playing photo tag team for Joe, 2 & 3 of 3 coming up ... I hope...Comment
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humm....
click on the image to get a bigger view, and I'll try to figure out why it posted thumbnailsComment
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Days are to short
U.P.S. showed today and delivered the rear rim. This is normally a front rim 21X2.15 from a late model Harley. This is a beautiful rim with an exaggerated "clincher style profile". Problem is, it is .55 inches wider than the 36 hole front hoop at 1.6 inch width. I guess two different width tires would work. An 80X90X21 front and a 90X90X21 rear might not be so bad. The ten mm about .4 inches is not to far off. This might give a better ride in the rear. Another problem is the rim has large spoke holes and no dimples to match the front rim. You might have noticed I am trying to sell myself on the usage of this rim, I will sleep on it. Also a set of seat post springs and the bearing race for the sprocket carrier found their way home.
Time spent this evening on the Okuma again dialing in a program to make front fork rocker studs. The new material is tough to machine, at 150 S.F.M. (surface feet / minute, typically you can run at least double this speed) the chips come off red hot and stay red for a short time while laying in the chip conveyor.
JoeLast edited by Slojo; 05-08-2010, 12:54 AM.Comment
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One small step for bike building..........
After falling behind with paper work and visitors today it was time to get back to production.
Yesterday my first front fork rocker stud was spun off the Okuma. Today following a few attempts to tune in the process some nice parts began falling off. I decided to eliminate the finish pass turning the bearing surface O.D.. Instead it was left alone after the 1/4 inch wide groove tool pushes all but the last .008" out of the way allowing for finish grind stock after heat treat.
For you YouTubers, two videos, one of high speed animation and the other, actual processing of a fork rocker stud. I made only the long thread style tonight and will just cut down the extra length before they go out for heat treat or plating.
http://www.youtube.com/watch?v=bM09GRkDDZE Machine operation
http://www.youtube.com/watch?v=Io1N9pI9ipg High speed video animation
JoeComment
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