#1  
Old 08-03-2010, 10:26 PM
M54's Avatar
M54 (Molly)
Registered User

M54 is offline
 
Join Date: Mar 2009
Location: Melbourne, Australia
Posts: 793
Question screwdriver necklace for collimating

Hi all,

I saw someone at a starparty collimating their secondary mirror with a screwdriver on a cord around their neck.
Does anyone know where these might be available?
It didn't look home made and it seems to me a lot safer than using a loose one.
I should have asked them at the time but for some reason I didn't think to.


Ta,
Molly.
Reply With Quote
  #2  
Old 08-03-2010, 10:32 PM
DavidU's Avatar
DavidU (Dave)
Like to learn

DavidU is offline
 
Join Date: Jul 2007
Location: melbourne
Posts: 4,835
Just drill a hole in the screwdrivers handle and tie a loop of string through it.
Reply With Quote
  #3  
Old 08-03-2010, 10:54 PM
M54's Avatar
M54 (Molly)
Registered User

M54 is offline
 
Join Date: Mar 2009
Location: Melbourne, Australia
Posts: 793
Thanks David,

I tried drilling perspex a few years ago but it just melted on the drill.

I thought the plastic of the handle might just melt if I tried that, but I'll give it a go anyway.

Thanks.
Reply With Quote
  #4  
Old 09-03-2010, 06:50 AM
mithrandir's Avatar
mithrandir (Andrew)
Registered User

mithrandir is offline
 
Join Date: Jan 2009
Location: Glenhaven
Posts: 4,161
Quote:
Originally Posted by M54 View Post
Thanks David,

I tried drilling perspex a few years ago but it just melted on the drill.

I thought the plastic of the handle might just melt if I tried that, but I'll give it a go anyway.

Thanks.
Don't run the drill so fast. Back it out of the hole a few times to clear the swarf and let the bit cool down.
Reply With Quote
  #5  
Old 09-03-2010, 10:23 AM
gmbfilter (Geoff)
Geoff

gmbfilter is offline
 
Join Date: Mar 2007
Location: South Tacoma NSW
Posts: 571
I have an allen key attached to one of these!http://www.nursestuff.com.au/retract...lip-coloured-3
I've lost several around the place but thy are cheep
Reply With Quote
  #6  
Old 09-03-2010, 11:15 AM
Screwdriverone's Avatar
Screwdriverone (Chris)
I have detailed files....

Screwdriverone is offline
 
Join Date: Feb 2008
Location: Kellyville Ridge, NSW Australia
Posts: 3,306
Hi Molly,

For a minute there, I thought this thread was about me...?

I just bought some Bob's knobs for my secondary and now I dont need an allen key or screwdriver at all. Cost me about $25 delivered from the Bob's Knobs website, arrived in 8 days and works like a treat. No more fiddling.

Cheers

Chris
Reply With Quote
  #7  
Old 09-03-2010, 02:23 PM
gmbfilter (Geoff)
Geoff

gmbfilter is offline
 
Join Date: Mar 2007
Location: South Tacoma NSW
Posts: 571
Quote:
Originally Posted by Screwdriverone View Post
Hi Molly,

For a minute there, I thought this thread was about me...?

I just bought some Bob's knobs for my secondary and now I dont need an allen key or screwdriver at all. Cost me about $25 delivered from the Bob's Knobs website, arrived in 8 days and works like a treat. No more fiddling.

Cheers

Chris
Great idea

Another thing I won't be able to lose
Reply With Quote
  #8  
Old 09-03-2010, 10:37 PM
erick's Avatar
erick (Eric)
Starcatcher

erick is offline
 
Join Date: Dec 2006
Location: Gerringong
Posts: 8,532
Same here, Bob's knobs. But before that, I fitted a wrist loop to my screwdriver connected to a screw into the plastic handle. Snug fit over wrist - will never fall.
Reply With Quote
  #9  
Old 18-03-2010, 02:22 PM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by M54 View Post
Thanks David,

I tried drilling perspex a few years ago but it just melted on the drill.

I thought the plastic of the handle might just melt if I tried that, but I'll give it a go anyway.

Thanks.
Try a hand drill.
Geoff
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 01:15 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Bintel
Advertisement