Author Topic: Edwards 5 Cylinders.  (Read 9561 times)

Offline Roger B

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Re: Edwards 5 Cylinders.
« Reply #45 on: February 21, 2019, 11:04:33 AM »
Excellent work  :praise2:  :praise2: It's good to have a teacher who can actually do the stuff rather than just talk about it  :ThumbsUp:  :ThumbsUp:  :wine1:
Best regards

Roger

Offline glorfindel

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Re: Edwards 5 Cylinders.
« Reply #46 on: February 21, 2019, 12:23:28 PM »
Excellent work  :praise2:  :praise2: It's good to have a teacher who can actually do the stuff rather than just talk about it      :wine1:
Students better like real project. I'll make a small dyno to hook up the engine too, so we will have many years of fun with that engine!!!

But i have to make it work!!! ;-)

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Offline petertha

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Re: Edwards 5 Cylinders.
« Reply #47 on: February 22, 2019, 11:57:07 PM »
I'll make a small dyno to hook up the engine too, so we will have many years of fun with that engine!!!

I look forward to that

Offline glorfindel

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Re: Edwards 5 Cylinders.
« Reply #48 on: February 25, 2019, 04:02:21 PM »
I had some problems with the part in the second chuck, it wasnt holding it correctly. I did the second step with the dmu 50, again the part sliped in the chuck.

So, i will have to make some kind of jig or i will make it in 2 parts instead of one.

Making it one part take a LOTS of material...

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Offline glorfindel

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Re: Edwards 5 Cylinders.
« Reply #49 on: March 01, 2019, 01:37:43 PM »
So, i did the first step of the crank. I tried to do it one shot but i had vibration problems and i was not able to hold the part like i wanted to.

This one is good, i have +0.001" on every diameter, will test fit with bearings as soon as i get them.

I should do the second step and the counter weight today.


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Offline glorfindel

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Re: Edwards 5 Cylinders.
« Reply #50 on: March 01, 2019, 03:31:50 PM »
CamGear done too. Wire EDM.

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Offline Admiral_dk

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Re: Edwards 5 Cylinders.
« Reply #51 on: March 01, 2019, 07:37:00 PM »
Ouch - the part slipping is rather annoying - has been there too  :cussing:

Other wise great parts.

Offline glorfindel

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Re: Edwards 5 Cylinders.
« Reply #52 on: March 07, 2019, 09:51:17 PM »
Did the retainer today. I had some errors on the first 2 lol!!!

So, the third one was good ;-)

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Offline glorfindel

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Re: Edwards 5 Cylinders.
« Reply #53 on: March 14, 2019, 12:42:59 PM »
Working on the Case.

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Offline Admiral_dk

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Re: Edwards 5 Cylinders.
« Reply #54 on: March 14, 2019, 05:08:09 PM »
Last family shot looks great + nice to see that you got solved the problems so far  :cheers:

Offline V 45

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Re: Edwards 5 Cylinders.
« Reply #55 on: March 14, 2019, 05:36:43 PM »
That's some very nice CNC machining right there ! Just curious...Why 12L14 for the cylinders and not cast iron?
Never assume the implied task has been completed !!

Offline glorfindel

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Re: Edwards 5 Cylinders.
« Reply #56 on: March 14, 2019, 09:32:16 PM »
That's some very nice CNC machining right there ! Just curious...Why 12L14 for the cylinders and not cast iron?
Because i didnt have cast iron round bar handy ;-)

I will make the rings in cast iron.

I know it's not the best material for cylinders, but i saw some peeps doing their cylinders with c12L14 and cast iron rings.

It's my first engine built, but i plan to redo the cyljnders in aluminium and send them to be Nikasil plated.

What's your take on cylinders/rings material choice??

The case is almost done, i'll do the small oil passage hole tomorrow.

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Offline glorfindel

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Re: Edwards 5 Cylinders.
« Reply #57 on: March 15, 2019, 01:29:43 PM »
Taping 4-40 holes!


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Offline glorfindel

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Re: Edwards 5 Cylinders.
« Reply #58 on: March 15, 2019, 07:25:02 PM »
Look almost like an engine now!!

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Offline Admiral_dk

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Re: Edwards 5 Cylinders.
« Reply #59 on: March 15, 2019, 09:12:44 PM »
Nice  :)

I tend to think of the master-rod as the one straight up = cylinder no 1 .... not that it matters  ;)