« previous next »
Pages: 1 2 3 4 [5] 6 7 8   Go Down

Author Topic: Race chain practice  (Read 2940 times)

0 Members and 19 Guests are viewing this topic.

Offline Sierrawoodsman

  • 4 cube
  • **
  • Posts: 68
  • Karma: 14

    • Total Badges: 16
    Badges: (View All)
    Level 4 Topic Starter Apple User Mobile User Poll Voter Level 3
Re: Race chain practice
« Reply #40 on: May 07, 2016, 09:56:17 pm »
Final leather strop.



Sent from my iPhone using Tapatalk
Logged
Like Like x 3 View List

Offline 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 4706
  • Karma: 320
  • Location: Carpenter, Wyoming

    • Total Badges: 43
    Badges: (View All)
    Tenth year Anniversary Nineth year Anniversary Level 7 Eighth year Anniversary Seventh year Anniversary Sixth year Anniversary
Re: Race chain practice
« Reply #41 on: May 07, 2016, 10:27:08 pm »
You know I think you got it.    Pretty nice looking chain.   
I think you will bring some serious competition on the next race chain build.
Logged
PP 505, 475, 445.
Agree Agree x 1 View List

Offline concretegrazer

  • 5 cube
  • ***
  • Posts: 126
  • Karma: 25

    • Total Badges: 22
    Badges: (View All)
    Third year Anniversary Level 5 Second year Anniversary 100 Posts Windows User Topic Starter
Re: Race chain practice
« Reply #42 on: May 07, 2016, 10:27:30 pm »
Quote from: Sierrawoodsman on May 07, 2016, 09:53:32 pm
Just finished it up the practice.
Here's a list of the things I did, many for the first time:
1: Square ground cutters back to second rivet

2: Thinned rivets .002" approx height.

3:Tunneled out  under top plate, And thinned  sideplate.

4: Clipped tail-(hdg-6), and feathered ground underneath it for additional chip clearance-(Dremel).

5: shortened and thinned rakers-left raked height unchanged-(hdg-6/Dremel).

6: Dog Bone straps using 3/16 round file.

7: Blended (thinned) tie strap tops at angle easier to go through wood (Dremel-stone).

8: Hand Stoned Cutter side plates-(250/800 grit Whetstone)

9: Leather Honed cutter side plates to near mirror finish by mounting saw chain backwards and running saw at fairly low speed 30 seconds. (Wood mounted leather hone and a       
.030"spacer.

Learned a lot and gained a great appreciation for how much time and effort goes into one of these Race Chains. Hope to
Bring a little better competition on the next round.
Here's a few pics and video:




Sent from my iPhone using Tapatalk

Nicely done. Did the honeing make a difference in cut time?
Logged

Offline Sierrawoodsman

  • 4 cube
  • **
  • Posts: 68
  • Karma: 14

    • Total Badges: 16
    Badges: (View All)
    Level 4 Topic Starter Apple User Mobile User Poll Voter Level 3
Re: Race chain practice
« Reply #43 on: May 07, 2016, 10:42:41 pm »
I didn't time it yet and ran out of daylight plus it's raining. I will try to do some further tests tomorrow in the wood. I would like to compare my fastest work chain that I submitted to this race chain, Although this race practice is 20 inches long versus 16 inches. could be a bit of an apples and oranges comparison. I don't know how much additional drag that 4 inches makes. It will be interesting to do for fun though. I'll post a video after I do it tomorrow.


Sent from my iPhone using Tapatalk
Logged
Like Like x 2 View List

Offline Sierrawoodsman

  • 4 cube
  • **
  • Posts: 68
  • Karma: 14

    • Total Badges: 16
    Badges: (View All)
    Level 4 Topic Starter Apple User Mobile User Poll Voter Level 3
Re: Race chain practice
« Reply #44 on: May 07, 2016, 10:46:01 pm »
The honing definitely smooth things out further on the cookie. I believe if the rakers we're set where they should be it would appear almost as if it was sanded smooth, but I still think they're a little too low to begin with


Sent from my iPhone using Tapatalk
Logged
Like Like x 1 View List

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 23734
  • Karma: 664
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair

    • Total Badges: 53
    Badges: (View All)
    Tenth year Anniversary Nineth year Anniversary Level 8 Apple User Eighth year Anniversary 20000 Posts
Re: Race chain practice
« Reply #45 on: May 08, 2016, 10:01:46 am »
Be careful weaking the strap and drive link in that area. Chain will come apart in a cut.

Logged

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 23734
  • Karma: 664
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair

    • Total Badges: 53
    Badges: (View All)
    Tenth year Anniversary Nineth year Anniversary Level 8 Apple User Eighth year Anniversary 20000 Posts
Re: Race chain practice
« Reply #46 on: May 08, 2016, 10:17:16 am »
One that was cut into to far in that area in the PS 3/8LP chain build off Rd 1.

Pic




Video


3rd cut listen for pop. stock 39cc so not over powered at all.



Logged
Informative Informative x 1 View List

Offline 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 4706
  • Karma: 320
  • Location: Carpenter, Wyoming

    • Total Badges: 43
    Badges: (View All)
    Tenth year Anniversary Nineth year Anniversary Level 7 Eighth year Anniversary Seventh year Anniversary Sixth year Anniversary
Re: Race chain practice
« Reply #47 on: May 08, 2016, 10:48:41 am »
When you do your filing for the dog bone work do not make it at an angle but more straight across.    You will not weaken the link so much that way like Kevin is referring to.
Logged
PP 505, 475, 445.

Offline Sierrawoodsman

  • 4 cube
  • **
  • Posts: 68
  • Karma: 14

    • Total Badges: 16
    Badges: (View All)
    Level 4 Topic Starter Apple User Mobile User Poll Voter Level 3
Re: Race chain practice
« Reply #48 on: May 08, 2016, 01:31:07 pm »
That link is the worst case- (weakest link). I agree it's too far. Right now it's on Mastered 550.
That 550 has even more pep my 346 did that Randy did for me. Good chance of it flying apart.


Sent from my iPhone using Tapatalk
Logged

Offline Sierrawoodsman

  • 4 cube
  • **
  • Posts: 68
  • Karma: 14

    • Total Badges: 16
    Badges: (View All)
    Level 4 Topic Starter Apple User Mobile User Poll Voter Level 3
Re: Race chain practice
« Reply #49 on: May 08, 2016, 08:18:50 pm »
Well I figured I might as well run it, and if it breaks it breaks. Wouldn't be the first time I broke a chain.


Sent from my iPhone using Tapatalk
Logged
Agree Agree x 1 View List
Pages: 1 2 3 4 [5] 6 7 8   Go Up
« previous next »