Team Build 8

[chucketn]

It's been a long time, but let me dig out the drawings and see what the parts are. If I think I can do them Justice, I'll try.
Should be doable, since I made all the missing parts for my copy.
I'll look them over tonight and let you know.
I can sympathize with the back pain. my wife had surgery in November to fuse 5 vertebrae, and remove several bone spurs. She is just now getting around without even a cane. She is relatively pain free after many years, but is limited in movement and flexibility, even after months of physical therapy. I kid her that she has more titanium in her than my car!

Chuck

 

[maverick]

Pat,
I will take on the crankshaft bearing base and cap, part numbers 39 and 40. I'll ship them with my other parts.

Chris, I have some #44 drill rod for the eccentric rod, would you like me to send it? Or I could make that part also.

 

[chrispare]

As it stands right now I do not have the time to take on any more that I have. Just trying to get these small beg blocks done is enough.
So I cannot take on more.
So if you ( maverick) would like to take on more then go for it.
That just means we need someone else that could do the eccentric and strap ( a vital piece of our little puzzle)

Any takers?

Chris

 

[Path]

Chris,

Yes, you have taken on a lot ... and I appreciate it.

Maverick .. agree with Chris, but only if you want to.

Chuck ... thanks for the offer. If it works out great, if not, that's okay too.
Glad to hear that your wife is improving.

Just a note guys ... I am very willing and want to make these parts.
What I didn't want was to leave you in dark. Give me the time I will get it done.
But you needed to know about the delay.

Thanks,

Path

 

[Path]

Okay time for an update ...

I'm looking to take back item #15 (Eccentric Rod) and #17 (Eccentric Strap),
if no one else has started to build them. Reading the back posts I need to make 10 rods and 8 Straps (since Ninefinger sent 2 straps to Chris).


The parts I'm making will go to:
dreeves
chucketn (if you still want them)
joe d
dalem9
maverick
ninefinger (unless we plan on building the engine for him)
rhitee93 (However, I have not heard from rhitee93 as of yet. For now I 'm assuming he needs these and the other parts. I will try to get a hold of him.)

myself

Chris do you need item 17 or can you use the 2 ninefinger sent you?

Maverick are still making #39 (Crankcase Bearing Cap) and #40 (Crankcase Bearing Base)?


Chuck ... In your picture you posted I see that you made your Crankcase Bearings from a brass material (bronze?). What is it and is it better than the steel called for?

I hope to get started by ordering material this week.

Any other updates or comments?

Later,

Path

 

[chucketn]

Path, as far as I know, they were made from 360 brass. The engine is on display in my den, in front of the flat screen TV. Hasn't been run since I showed it off to my brother a long while ago, but it worked...
And, yes, I still want the parts if they get done.

Chuck

 

[maverick]

I am making #39 (Crankcase Bearing Cap) and #40 (Crankcase Bearing Base) as well as #15 eccentric rod which is well on it's way.
I will ship them together with the flywheels and crankshafts.

 

[Path]

Update time ...

It was decided that I would make 10 Eccentric Straps (#17) front and back haves.
So far I have CNCed the front and back; drilled and tapped the holes.
Made a fixture to hold the pieces for machining the center hole and the recessed grooves. Now all I need are the Eccentrics so that I can match them together for a perfect fit. Drawing calls for a gap of .001" ... not sure that I can do that but I will try. I think I'm going to see about adjusting the diameters of the Eccentrics ... that way the diameters of the straps would the same, much easier to do with CNC. Will have to see what the best way to match them.

Chris ... are the Eccentric in the mail?

Will have pictures later the week.

Any other updates?

Path

 

[chrispare]

Pat I apologize for the delay they will be mailed by Friday.
We have hade a rough month and my head has been else ware.

I have them packed and ready so you will see them be next week

Chris

 

[Path]

Things are coming together...
Here is an update with a few photos.

Below are the 10 new straps that were CNCed.

After cutting them out, drilling and tapping they are assembled ... ready to be milled for the Eccentric hole. Each one will be placed in the fixture below, positioned carefully using 3 roll pins (looking closely you should see one of them). The two screws secure it in place. Next they will be flipped over for the last milling operation.

Here are the 10 Eccentrics and Rod Clevises that Ninefinger made. These parts really look good. After measuring the diameters of each one I will label it so that I can match them with one of the Straps .. so I may trim the diameter a bit the get the fit just right.

Thanks for mailing these parts to me Chris.

Hope to get started this weekend.


Path

 

[dalem9]

Wow Path looking good

 

[Path]

Update ...

dalemp ... Thanks for the kind comment.


Maverick ... Are the Crankcase Bearing Cap #39, the Crankcase Bearing Base #40 and Eccentric Rod#15 ready to ship along with the Flywheel and Crankshaft? Let me know and I will PM the addresses to you.


Okay here's my status ... Finished .

The Straps and Eccentrics have been matched so they run very smooth together.

Ready to mail ...pictures and details coming.

Later,

Path

 

[dreeves]

Getting excited to get the parts to complete the engine. Thanks for getting this back on track.

Dave

 

[maverick]

I will be back in the shop next week and will start the packaging.
Path, please PM the address list.

 

[Path]

Here are the pictures for the straps and Eccentric build .....

Below I machined sample holes to get a nice fit for the Eccentric. Machined the hole then install the eccentric for a smooth fit, if not, modify the g-code and try again. The diameter changes were in the .0005" the last one is just right.

Now that I have the correct g-code for a nice fit, I used this fixture to mount each strap. Each one was centered (G54) then machined. After all 10 were done on one side I flipped them over and re-centered ... that way I knew the outer holes would be concentric.

All ten are done ... This is the back side.

This is the set up to fine tune the eccentric ... used a mandrel and a 4 jaw chuck, adjusted until the eccentric was concentric. After each cut I would mount the strap ... if too tight ... take a little more off.

Here they are ready to ship ...

The screws are a little short, just be sure the sides match when assembling the pieces together. You will see what I mean when you get them.

maverick will PM you the addresses tomorrow.

Path

 

[chucketn]

Is it still the plan to auction #10 for charity?

Chuck

 

[chrispare]

Chuck as far as I am aware I am going to auction this build along with tb7(seperatly of course),Procedes goint to CYSTIC FIBROSIS.
Just waiting for the parts to come in and get it togeather and they will be up on this site.

Pat those parts make what I did with a file (little story ending badly for my mill) look a little rough, I hope that they all work.
I too seem to lost my mailing list.

Wont be long now

Chris

 

[Path]

Okay ... the addresses were PM to Chris and Maverick last week.

Mail notes: be sure to mail to Chris two of the same part, one for his engine and the other for the auction unit.

Also ... I have not received a response from rhitee93 (Brian Dougherty), I have sent Brian 2 PMs and one email (which did not come back as undeliverable). Still working on reaching Brian, will keep you posted.
I guess for now you may think about holding onto his part until contact is made.

I will start mailing my parts tomorrow.

Later,

Path

 

[dalem9]

Thanks Pat

 

[dreeves]

Looking forward to seeing the new parts. getting excited.woohoo1

Dave