ORDER HERE!
Posters: 112214 | Bands: 101635
Designers: 8789 | Posters Awaiting Approval: 14


   
 
RSS Feeds

Forums

New Arrivals
 Welcome to GigPosters.com! 
Registration is FREE. Join the community by clicking here!
Go Back   GigPosters.com > Technique > Screenprinting

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 12-12-2006, 10:17 AM

Join Date: Dec 2006
Posts: 3
Comments: 0
Default Exposure calculator!!!

Please Please Please

Is it anyway to find somewhere an exposure calculator... somewhere on the net... I guess I can just print it on a transparencie and it will do the job...

I've been looking for one, but no one want to ship to canada(ahahah) and cosmexgraphics... don't have it anymore, hmm
Reply With Quote
  #2 (permalink)  
Old 12-12-2006, 10:21 AM
phoondaddy's Avatar
Premium Member

 
Join Date: Oct 2004
Location: Indianapolis
Posts: 23,041
Comments: 4856
Default

Quote:
Originally Posted by emetique@mac.com View Post
I guess I can just print it on a transparencie and it will do the job...
Bingo.

Make sure you put solids and different %'s of halftones as well as different size stroke lines.
__________________
"My hate for Phoon is what gets me out of my cardboard box every morning." ~ B-DUD
"I'm batshit insane." - Steve W
"I'm a fluffer." ~ Droid to the B
Reply With Quote
  #3 (permalink)  
Old 12-12-2006, 10:29 AM
IVARTON's Avatar
Premium Member

 
Join Date: Apr 2004
Location: Las Vegas

$125.00
Default

someone should make a generic file and upload it to the premium section
__________________
I started 25 years ago with a stolen Kinko's card and a shitty bicycle. If I can do it you can too. - Kozik

For the record, I also enjoy snack cakes and receiving fellatio. - ENM

Reading "The Art of Seduction" saved me a lot of money on Roofies.

I was stuck in this giant RV with Keith Richards and he kept tickling my ass and trying to toss my salad. - B-DROID
IVARTON::POSTERS::PHOTOS::CONSUME::SPROCKETS
Reply With Quote
  #4 (permalink)  
Old 12-12-2006, 10:40 AM
fantasygoat's Avatar
Premium Member

 
Join Date: Feb 2005
Location: Toronto, ON
Posts: 5,928
Comments: 972
Send a message via MSN to fantasygoat
Default

The problem with making a generic one is that the good ones have specifically graded filters on them, representing various percentages of light reaching the emulsion. That's how you really determine your exposure time.
__________________
Popfuel - Toronto's only membership-supported screenprinting studio
Check out the Popfuel Website at http://www.popfuel.com/
--
'Professionalism is for offset printers.' - Andymac
Reply With Quote
  #5 (permalink)  
Old 12-12-2006, 10:46 AM
phoondaddy's Avatar
Premium Member

 
Join Date: Oct 2004
Location: Indianapolis
Posts: 23,041
Comments: 4856
Default

Fantasygoat knows everything. From now on just PM him all questions.
__________________
"My hate for Phoon is what gets me out of my cardboard box every morning." ~ B-DUD
"I'm batshit insane." - Steve W
"I'm a fluffer." ~ Droid to the B
Reply With Quote
  #6 (permalink)  
Old 12-12-2006, 10:56 AM
wezzburlesque's Avatar
Premium Member

Join Date: Nov 2003
Location: Minneapolis
Posts: 1,030
Comments: 357
Send a message via AIM to wezzburlesque
Default

a basic home made one with different size halftones and line will help learn what level of detail you can pull off and if you have good on contact, you'll be able to tell if you are exposing with too little light if the detail is falling out. too much light is harder to tell but it will mean you'll lose really thin lines as light is refracting around the film and getting under the black. But the real joints are nice that fantasy goat is talking about as they help dial it in more exactly. I'm using one right now actually. Without one, you stil gotta do a strip test.
__________________
___________________________________________
------------------------------------------------>
"bewing an artist is easy,.
sell paintings for 300000 grand and get a gelleray to pick you up"
-Dance Party
Reply With Quote
  #7 (permalink)  
Old 12-12-2006, 11:20 AM
IVARTON's Avatar
Premium Member

 
Join Date: Apr 2004
Location: Las Vegas

$125.00
Default

Yeah i just printed some black to white gradients and differnt dot sizes and went

10 min
5 min
2.5 min
1:15 etc....

helped me figure out my exposure times are 2.5 to 3min
__________________
I started 25 years ago with a stolen Kinko's card and a shitty bicycle. If I can do it you can too. - Kozik

For the record, I also enjoy snack cakes and receiving fellatio. - ENM

Reading "The Art of Seduction" saved me a lot of money on Roofies.

I was stuck in this giant RV with Keith Richards and he kept tickling my ass and trying to toss my salad. - B-DROID
IVARTON::POSTERS::PHOTOS::CONSUME::SPROCKETS
Reply With Quote
  #8 (permalink)  
Old 12-12-2006, 11:37 AM

Join Date: Dec 2006
Posts: 3
Comments: 0
Default

I will do an home made...
and yes, someone should make a generic file

my time should be around 40sec (transparencies, UV light)... with a so short time, I guess that an exposure calculator shoud help me...

Do you know wich one exposure calculator is the best?
Autotype?
any preferences?
Reply With Quote
  #9 (permalink)  
Old 12-12-2006, 11:56 AM
Andymac's Avatar
Premium Member

Join Date: Aug 2003
Location: Van Isle BC Canada
Posts: 8,647
Comments: 208
Default

Autotype works good, but is expensive ($80?)
Crosshair was talking about a cheaper one ($10-15?) he got, maybe from AWT? - there is a reference or two re this one in the forums.
Although they are nice, I think if you are armed with a good detailed OPAQUE film (get soemthing from an offset printer/digital service bureau) and a piece of ruby or black paper, a watch, and half a brain you can do a good job of figuring out. Especially with a fixed lamp distance.

I published a story in the SGIA tech journal called Exposure Road Test. I have a pdf of the story, and a pdf of the film you can print out. If someone can host both for me, we can put a link up to it. It's basically about the different results you get from using different types of film - photocopy, laser, inkjet, oyo, imagesetter, etc.
__________________
Andymac

services www.squeegeeville.com
equipment www.tmiscreenprinting.com

Todo es empezar.
Reply With Quote
  #10 (permalink)  
Old 12-12-2006, 12:09 PM
loco's Avatar
Premium Member

 
Join Date: Feb 2004
Location: Fresno, Ca
Posts: 11,612
Comments: 38
Default

wedge step test

like andymac was talking about, which I will be doing today at my shop

-loco
__________________
Gotta get behind the mule and the morning plow -Tom Waits
Reply With Quote
Reply

Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 01:02 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.2.0