Author Topic: another Snow engine  (Read 157743 times)

Offline fumopuc

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Re: another Snow engine
« Reply #300 on: October 18, 2015, 06:12:36 PM »
Don, Dave thanks for checking in and giving friendly comments.


Today I have started the conrod and the fixture for soldering.
CI is not my favourite stuff to machine, but the design of this conrod with its self lubricating big and small eyes are an interesting design.
So here are the pictures, starting with a lump of CI, squaring it and giving some nice surfaces.



Kind Regards
Achim

Offline vcutajar

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Re: another Snow engine
« Reply #301 on: October 18, 2015, 08:20:26 PM »
Hi Achim.  Although I have not commented a lot, I still followed all your postings and learned new things. Like today, I did not know that one can find cast iron in square sections. I thought it was only found in round section.

Vince

Offline fumopuc

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Re: another Snow engine
« Reply #302 on: October 18, 2015, 08:56:56 PM »
Hi Achim.  Although I have not commented a lot, I still followed all your postings and learned new things. Like today, I did not know that one can find cast iron in square sections. I thought it was only found in round section.

Vince
Hi Vince, I have got it from a supplier in my home town.
http://www.wilmsmetall.de/?page=bin/productview&data=NjhkITY5Mw==
The first time I have bought some CI.
Kind Regards
Achim

Offline rudydubya

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Re: another Snow engine
« Reply #303 on: October 18, 2015, 09:57:50 PM »
Following along quietly with the many others Achim.

Regards,
Rudy

Offline Nicolas

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Re: another Snow engine
« Reply #304 on: October 19, 2015, 09:22:59 AM »
Hello Achim, just had a very quick skim through your build. I will definitely take the time to properly read through during the holidays.

I noticed that you are using an Optimum mill (I think). Is it the BF16 or the BF20? and are you happy with it? it is one of few available machines in New Zealand and I've heard mixed opinions about them quality wise .

Apologies for going off topic.

Offline Bluechip

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Re: another Snow engine
« Reply #305 on: October 19, 2015, 09:36:20 AM »
Hi Achim.  Although I have not commented a lot, I still followed all your postings and learned new things. Like today, I did not know that one can find cast iron in square sections. I thought it was only found in round section.

Vince

It can be obtained from M-Metals.

http://www.m-machine-metals.co.uk/metals_menu.html

Snip from P10 of their catalogue.

Don't know if it helps for Malta though ....  :headscratch:

Dave


Offline fumopuc

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Re: another Snow engine
« Reply #306 on: October 19, 2015, 08:39:37 PM »
Hello Achim, just had a very quick skim through your build. I will definitely take the time to properly read through during the holidays.

I noticed that you are using an Optimum mill (I think). Is it the BF16 or the BF20? and are you happy with it? it is one of few available machines in New Zealand and I've heard mixed opinions about them quality wise .

Apologies for going off topic.
Hi Nicolas, I have this Optimum BF 20 L (with the long table) since 3 years now and l am happy with it.
It is a Chinese production like all the other brands too, same casting, same peel off paint, same smell.....but labeled by a German company.
I could make everything what I want so far and the results are fine for me.
It is a low cost hobby machine and you will get what you have paid for.
My first mill was a German version of a Sieg X2, I have not  been happy with the small table, so I have sold it and bought the Optimum BF20L. I am a lazy boy and now the vice and rotary table are always mounted and I do not have long set up times. A lot of people and members of this forum still using mills like the X2 and they are building beautiful model engines which I admire. A the end the guy (or gal) turning the handwheels, is responsable for the result, not the mill.
With a super, special, high end mill it will be easier to get top results, but also there somebody has to turn the wheels and should know what he is doing.
« Last Edit: October 19, 2015, 08:42:41 PM by fumopuc »
Kind Regards
Achim

Offline Roger B

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Re: another Snow engine
« Reply #307 on: October 20, 2015, 01:11:10 PM »
Still following along  :ThumbsUp:  :ThumbsUp:  :wine1:

The connecting rod design is interesting using cast iron ends as the bearing material  :headscratch: I suppose as it is a low speed engine the weight is not so important.
Best regards

Roger

Offline b.lindsey

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Re: another Snow engine
« Reply #308 on: October 20, 2015, 06:11:49 PM »
Nice to see an update on this project Achim. The conrod is looking good!!

Bill

Offline joe d

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Re: another Snow engine
« Reply #309 on: October 20, 2015, 08:11:57 PM »
Hi Achim

Still following along, nice good to see some progress!

Cheers, Joe

Offline fumopuc

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Re: another Snow engine
« Reply #310 on: October 25, 2015, 04:04:46 PM »
Joe, Bill, Roger, Nicolas, Dave, Rudy and Vince thank´s for checking in. I appreciate it very much.
Today I have done the conrod soldering. A lot of heat was necessary to get the parts and the fixture to the right temperature.
But at the end I have got it and the final machining between two centres could be done also.
I have made a sample assembly with the first cylinder, only to check if the basics dimensions are O.K.
Kind Regards
Achim

Offline fumopuc

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Re: another Snow engine
« Reply #311 on: October 25, 2015, 04:06:21 PM »
... and if everything is sample assembled, some motion is showing where we are now.
<a href="https://www.youtube.com/watch?v=QnLG31rfF_g" target="_blank">http://www.youtube.com/watch?v=QnLG31rfF_g</a>

Kind Regards
Achim

Offline Don1966

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Re: another Snow engine
« Reply #312 on: October 25, 2015, 04:49:55 PM »
Excellent work on the Conrod Achim and some great progress.


Don

Offline ICEpeter

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Re: another Snow engine
« Reply #313 on: October 25, 2015, 05:47:20 PM »
Achim,
Great job, very impressive! Look forward to see more.

Peter J.

Offline b.lindsey

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Re: another Snow engine
« Reply #314 on: October 25, 2015, 06:44:07 PM »
Nice  work Achim, and a very smooth action to it as well.

Bill

 

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