Crankshaft counterweight shape (advice)

Crankshaft counterweight shape (advice)

This topic has 6 replies, 3 voices, and was last updated 19 November 2015 at 12:25 by Nick_G.

Viewing 7 posts - 1 through 7 (of 7 total)

Author

Posts
18 November 2015 at 22:00 #213112
Nick_G
Participant
@nick_g
.

Hi,

I am making the crankshaft webs for my No.4 and have decided to incorporate counterweights onto it.

What do members think will look better a 15 or a 30 degree back rake.? I have drawn aprox onto it the 2 angles that will be carved out to help to visualise.

Cheers, Nick
Advert

18 November 2015 at 22:00 #24228
Nick_G
Participant
@nick_g
18 November 2015 at 22:06 #213113
pgk pgk
Participant
@pgkpgk17461
A british compromise… 30 degs to half the radius and come back to 15…
18 November 2015 at 22:11 #213115
Nick_G
Participant
@nick_g
Posted by pgk pgk on 18/11/2015 22:06:05:

A british compromise… 30 degs to half the radius and come back to 15…

.

I hate you.!

But I admit that it would look good.

Nick
18 November 2015 at 22:20 #213117
pgk pgk
Participant
@pgkpgk17461
19 November 2015 at 07:29 #213134
JasonB
Moderator
@jasonb
30 particularly if you go with an aluminium piston
19 November 2015 at 12:25 #213166
Nick_G
Participant
@nick_g
.

Cheers Jason.

30 degrees it is then.

Nick
Author

Posts

Viewing 7 posts - 1 through 7 (of 7 total)

Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

Code of Conduct

Latest Replies

Viewing 25 topics - 1 through 25 (of 25 total)

- Topic
- Voices
- Posts
- Last Post
- New to castings
  Started by: BOB BLACKSHAW 1 in: Workshop Techniques
- 5
- 16
- 30 September 2026 at 12:18
  BOB BLACKSHAW 1
- Drilling accurate depth holes
  Started by: Bob Sillitoe in: Beginners questions
- 3
- 3
- 30 September 2026 at 12:17
  JasonB
- PROGRESS
  Started by: Phillip weaver in: Introduce Yourself – New members start here!
- 2
- 5
- 30 September 2026 at 11:31
  Andrew Tinsley
- Linear scale caput
  Started by: petro1head in: General Questions
- 3
- 4
- 30 September 2026 at 10:26
  owenhartley
- Missmatched threads
  Started by: old mart in: Hints And Tips for model engineers
- 6
- 10
- 30 September 2026 at 10:04
  Clive Foster
- Midlands Model Engineering Exhibition, Thursday 15th to Sunday 18th October 2026
  Started by: Meridienne Exhibitions 1 in: Exhibitions, Shows and Club Events
- 4
- 6
- 30 September 2026 at 10:03
  Meridienne Exhibitions 1
- Triangular Insert Tool
  Started by: James A in: Workshop Tools and Tooling
- 9
- 14
- 30 September 2026 at 07:56
  James A
- Portoss lathe – new to me.
  Started by: File Handle in: Beginners questions
- 4
- 7
- 30 September 2026 at 07:55
  Lee Rogers
- Octopus Heat Pump 1 2 … 4 5
  Started by: Michael Gilligan in: The Tea Room
- 25
- 112
- 30 September 2026 at 07:45
  Michael Gilligan
- Reverting An ML7 To Change-Wheels: Any Thoughts?? 1 2
  Started by: Nigel Graham 2 in: Manual machine tools
- 19
- 38
- 30 September 2026 at 06:52
  JasonB
- Taylor Hobson cutter grinder modificaton 1 2
  Started by: David George 1 in: Workshop Tools and Tooling
- 11
- 45
- 29 September 2026 at 21:55
  Colin Teasdale
- Claude et al
  Started by: Michael Gilligan in: The Tea Room
- 4
- 5
- 29 September 2026 at 19:38
  Bazyle
- Warco VMC start capacitor
  Started by: Durhambuilder in: Electronics in the Workshop
- 5
- 10
- 29 September 2026 at 12:06
  Durhambuilder
- Family Day at the museum in Großauheim near Hanau with steam
  Started by: Werner Schleidt in: Traction engines
- 2
- 2
- 29 September 2026 at 12:05
  Mike Hurley
- Model engineering’s (live steam) big five
  Started by: Luker in: Locomotives
- 7
- 16
- 29 September 2026 at 10:03
  Luker
- finding involute gear cutter 1 2
  Started by: vic newey in: Workshop Techniques
- 11
- 27
- 28 September 2026 at 17:08
  vic newey
- Model Engine Maker
  Started by: Colin Heseltine in: The Tea Room
- 4
- 8
- 28 September 2026 at 14:47
  Colin Heseltine
- End mill sharpening 1 2
  Started by: petro1head in: General Questions
- 17
- 34
- 28 September 2026 at 14:22
  petro1head
- What Did You Do Today 2026 1 2 … 7 8
  Started by: JasonB in: The Tea Room
- 48
- 187
- 28 September 2026 at 13:46
  bernard towers
- What to do about son’s inheritance.
  Started by: Terry Nicholas in: General Questions
- 2
- 2
- 28 September 2026 at 13:39
  bernard towers
- Wired doorbell to wireless
  Started by: Another JohnS in: General Questions
- 9
- 14
- 28 September 2026 at 12:17
  renardiere7
- Sharing some grinding blades I’m currently using
  Started by: hclmetal2026 in: CNC machines, Home builds, Conversions, ELS, automation, software, etc tools
- 3
- 4
- 28 September 2026 at 09:48
  hclmetal2026
- The Big St Albans Model Show
  Started by: Bazyle in: Exhibitions, Shows and Club Events
- 2
- 7
- 28 September 2026 at 09:38
  paul1956
- Railmotor regulator drawings
  Started by: duncan webster 1 in: Locomotives
- 2
- 5
- 27 September 2026 at 20:17
  duncan webster 1
- Boring Bars
  Started by: Andy Brocklehurst in: General Questions
- 3
- 5
- 27 September 2026 at 19:00
  Andy Brocklehurst

Viewing 25 topics - 1 through 25 (of 25 total)

View full reply list.

Latest Issue

October 2026

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies