Marking a carbon fibre seat post.

Quoted message said:

Is there any safe way I can do this either permanently or semi-permanently? I just need a little
make for the correct position.

Soft (2B) pencil works well - and you can rub it off afterwards.

"Drinky" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Quoted message said:

Is there any safe way I can do this either permanently or semi-permanently? I just need a little
make for the correct position.

Electrical tape !

Graham

Quoted message said:

Soft (2B) pencil works well - and you can rub it off afterwards.

Colin Blackburn tried to scribble ...

Quoted message said:

Is there any safe way I can do this either permanently or semi-permanently? I just need a little
make for the correct position.

Colin

Tipp-ex

--
Digweed '79 Beamish RL 250, '85 Swift Corvette, '95 Dyna-Tech CroMo Comp, '97 Landrover Discovery
300 Tdi, '02 Schumacher CAT 3000, '03 Losi Kinwald Triple-X, '03 Associated RC10 B4 .... 😉

Graham said:

"Drinky" <[email hidden]> wrote in message "]news:[email hidden]...

Quoted message said:

Quoted message said:

Is there any safe way I can do this either permanently or semi-permanently? I just need a
little make for the correct position.

Electrical tape !

Quoted message said:

Quoted message said:

Soft (2B) pencil works well - and you can rub it off afterwards.

I should perhaps have added a detail, the seatpost will be regularly pushed down into the tube
to another position so the mark has to survive that. Electrical tape would snag. Would a pencil
mark survive?

Will permanent marker have any adverse chemical effects?

Colin

Colin Blackburn tried to scribble ...

Quoted message said:

Graham said:

"Drinky" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

> Is there any safe way I can do this either permanently or semi-permanently? I just need a
> little make for the correct position.

Electrical tape !

Quoted message said:

Quoted message said:

Soft (2B) pencil works well - and you can rub it off afterwards.

I should perhaps have added a detail, the seatpost will be regularly pushed down into the tube to
another position so the mark has to survive that. Electrical tape would snag. Would a pencil mark
survive?

Will permanent marker have any adverse chemical effects?

Colin

Ahhh .. a little harder .. 😉

A piece of electrical tape wound around the seat rails, then stuck back on itself to a long dangling
'flag' length. Cut this 'flag' to the correct length when the seat post is inside the tube, then
when it needs to be pulled out, just line the end of the tape up with the top of the seat tube.
Maybe ... 😉

--
Digweed '79 Beamish RL 250, '85 Swift Corvette, '95 Dyna-Tech CroMo Comp, '97 Landrover Discovery
300 Tdi, '02 Schumacher CAT 3000, '03 Losi Kinwald Triple-X, '03 Associated RC10 B4 .... 😉

Colin Blackburn said:

Is there any safe way I can do this either permanently or semi-permanently? I just need a little
make for the correct position.

Wrap some masking tape round it? If you don't like masking tape, insulating tape?

--
[email hidden] (Simon Brooke) jasmine.org.uk~simonOpen ↗

Due to financial constraints, the light at the end of the tunnel has been switched off.

Colin Blackburn said:

Is there any safe way I can do this either permanently or semi-permanently? I just need a little
make for the correct position.

Colin

Not a mark but make a rod. It is a stick that is exactly the correct length from a know point on the
saddle or top of seat pin to the top of the seat tube. A ruler or tape measure is the same thing but
a fixed length rod is more accurate as you do not have to make readings, simply hold the rod on the
back of the seat pin, slide it into the tube until the rod prevents it going any further.

--
The Reply & From email addresses are checked rarely.

Colin Blackburn said:

Will permanent marker have any adverse chemical effects?

Don't know but so called permanent marker ink can be rubbed off with grease or oil. I know you're
not supposed to grease carbon posts but some people do or there may be a trace of grease left in the
seat tube.

Tipp-ex is good but might get scraped off when lowering post. I would try paint - trying some on
bottom of post to test for reactions first.

~PB

MSeries said:

Not a mark but make a rod. It is a stick that is exactly the correct length from a know point on
the saddle or top of seat pin to the top of the seat tube. A ruler or tape measure is the same
thing but a fixed length rod is more accurate as you do not have to make readings, simply hold the
rod on the back of the seat pin, slide it into the tube until the rod prevents it going any
further.

You, Sir, are a genius!

"Pete Biggs" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

Colin Blackburn said:

Tipp-ex is good but might get scraped off when lowering post. I would try paint - trying some on
bottom of post to test for reactions first.

~PB

Carbon fibre spars used for sailing are frequently painted so I suspect no problem there. If you go
this route I suspect the paint scraping off may be more of a problem - it depends how tight a fit
you seatpost is in the frame. If this is a problem I suppose you could either sand off a few thou to
allow for a coat of paint or if that's unacceptable (I'm sure someone will comment) the alternative
is to create a "marker length" of summatorother(Tm) (depending if changing saddle height is done at
home or partway through a ride).

Julia