(DIR) Return Create A Forum - Home
---------------------------------------------------------
Chainsaw Repair
(HTM) https://chainsawrepair.createaforum.com
---------------------------------------------------------
*****************************************************
(DIR) Return to: Chainsaw Collection Pics - Signs - Whats on your be...
*****************************************************
#Post#: 77664--------------------------------------------------
Re: Whats on your bench today
By: chy_farm Date: June 8, 2017, 9:13 am
---------------------------------------------------------
[quote author=Cut4fun . link=topic=1732.msg77663#msg77663
date=1496926569]
Handle made from copper or just painted to look like it?
[/quote]
Thank you Kevin for showing an interest on her! yes it's made
from a copper pipe. Glad if you enjoy pics below.
#Post#: 77665--------------------------------------------------
Re: Whats on your bench today
By: 3000 FPS Date: June 8, 2017, 10:32 am
---------------------------------------------------------
The copper handle is a nice match with the copper cover.
#Post#: 77667--------------------------------------------------
Re: Whats on your bench today
By: Chainsawrepair Date: June 8, 2017, 11:37 am
---------------------------------------------------------
Wow :o well done. 8)
#Post#: 77668--------------------------------------------------
Re: Whats on your bench today
By: chy_farm Date: June 8, 2017, 6:24 pm
---------------------------------------------------------
[quote author=3000 FPS link=topic=1732.msg77665#msg77665
date=1496935975]
The copper handle is a nice match with the copper cover.
[/quote]
Thank you 3000 FPS, I post some pics below showing the way I
made it.
[quote author=Cut4fun . link=topic=1732.msg77667#msg77667
date=1496939873]
Wow :o well done. 8) [/quote]
Thank you for comment.
Chy
#Post#: 77672--------------------------------------------------
Re: Whats on your bench today
By: 3000 FPS Date: June 8, 2017, 10:52 pm
---------------------------------------------------------
That looks like it took some time to accomplish.
#Post#: 77677--------------------------------------------------
Re: Whats on your bench today
By: Chainsawrepair Date: June 9, 2017, 8:27 am
---------------------------------------------------------
Wow :o didnt even catch that was homemade too. I thought it had
just been painted copper. 8) 8)
You sir are the professor of the class IMHO
#Post#: 77688--------------------------------------------------
Re: Whats on your bench today
By: chy_farm Date: June 9, 2017, 5:25 pm
---------------------------------------------------------
[quote author=3000 FPS link=topic=1732.msg77672#msg77672
date=1496980373]
That looks like it took some time to accomplish. [/quote]
Thanks 3000FPS, yes I started this project nearly four years
ago. But I took some intervals of repose that sum up nearly two
years.
[quote author=Cut4fun . link=topic=1732.msg77677#msg77677
date=1497014856]
Wow :o didnt even catch that was homemade too. I thought it had
just been painted copper. 8) 8)
You sir are the professor of the class IMHO[/quote]
That's a good honor to me, many thanks Kevin!
Chy
#Post#: 77690--------------------------------------------------
Re: Whats on your bench today
By: chy_farm Date: June 9, 2017, 5:49 pm
---------------------------------------------------------
I started a power pipe project for her.
First thing to do was knowing the exhaust port timing, from
opening to closing. I put a handmade disk on to the flywheel,
see a marking at the top which tells zero degrees when this port
begins to open.
Turn the shaft to the right direction until it closes again, see
the disk how it tells the angle.
It tell 160 degrees!
Now open the [Java Pipe] site, which provides an on-line
software to calculate the design, to put several required
factors in the blanks.
E.g. I put below factors;
Velocity of Rotation : 9600 rpm
Exhaust Port Angle : 160 degrees
Transfer Port Angle : 150 degrees (I did not measure this but it
seems in most cases a tad smaller than ex-port angle.)
Exhaust Port Area : 620 square milimeters
Exhaust Gas Temperature : 653 degrees K ( equivalent to 380
degrees Celsius)
The last line, the Exhaust Gas Temperature is a tricky part of
this designing to me. In the latest try for Echo Twin, I set 773
degrees K which is equivalent to 500 degrees Celsius, but
perhaps it was too hot.
Anyways I got a couple of designs for her, see these below.
Chy
#Post#: 77695--------------------------------------------------
Re: Whats on your bench today
By: chy_farm Date: June 10, 2017, 4:50 pm
---------------------------------------------------------
Did some more on the bench.
#Post#: 77696--------------------------------------------------
Re: Whats on your bench today
By: 3000 FPS Date: June 10, 2017, 6:41 pm
---------------------------------------------------------
Pretty neat stuff there Chy.
I have a few questions.
1) The RPM's you chose is 10,000 rpm. Is that based on what
the saw will turn in the wood or with out a load with bar and
chain on.
2) What gauge sheet metal are you using to build the pipe.
3) Are you gas welding the Pipe together.
*****************************************************
(DIR) Previous Page
(DIR) Next Page