Dolev4Press punch system
- Thread starter vedran
- Start date
PACH
Well-known member
Hi Vedran,
There are 2 types of punches that were fitted when required. The most common one was the BAR punch that punched 2 holes on the width ( longer end) of the film. The SIDE punch was less common and more problematic.OPen the Left Hand Door of the Dolev and look to the lower part of the Drum on the Right Hand Side of it. If there is a Motor there ( like the other motors in the Dolev) connected to the punch bar and some electronics than you have one. The Side punch is easy to see beeing fitted arround the left hand side of the drum .
There are 2 types of punches that were fitted when required. The most common one was the BAR punch that punched 2 holes on the width ( longer end) of the film. The SIDE punch was less common and more problematic.OPen the Left Hand Door of the Dolev and look to the lower part of the Drum on the Right Hand Side of it. If there is a Motor there ( like the other motors in the Dolev) connected to the punch bar and some electronics than you have one. The Side punch is easy to see beeing fitted arround the left hand side of the drum .
Hi PACH,
yes, there is bar punch (when checked Punch option during imaging preparation it makes punches but can't define the right position). Now the problem is how to utilize them. In service menu i have 0 place for bar punch and 5 customizable positions, at least what I can tell by looking at the menu. Other options (numbers 1 -9) I can't choose, one is tail punch. How do I enter the right values? As I see there are also 4 places to choose capital letters to define punch position but I don't know what do they correspond to exactly (as I recall they were L, R, M, H).
yes, there is bar punch (when checked Punch option during imaging preparation it makes punches but can't define the right position). Now the problem is how to utilize them. In service menu i have 0 place for bar punch and 5 customizable positions, at least what I can tell by looking at the menu. Other options (numbers 1 -9) I can't choose, one is tail punch. How do I enter the right values? As I see there are also 4 places to choose capital letters to define punch position but I don't know what do they correspond to exactly (as I recall they were L, R, M, H).
PACH
Well-known member
Verdan,
Has the punch bar been operating so far? You might have found out that the max image area in width (arround the drum)with the bar punch is 540
and if you are using the punches you have to expose 1 UP all the time.
The calibration is not straight forward as you need to get the image central to the punches.
The letter H (head punch) has to be put into the system parameters
Under SERVICE UTILS---SET UP---SERVICE---PUNCH SETTINGS--SELECT TYPE OF PUNCH I.E. BACHAR (PROTOCOL) for SYSTEM NAME
For punch position: ,,H, (choose H as it is here)
To get the maximum 540mm image are you have to change the EXPOSE START :W under Plotter Setting.
Best way to do this is to create a Rectangle or a GRID is better with a size of 724x540. Expose it and keep adjusting the Width value untill you get all the image on the film.
As I said befor the alignment of the image is NOT easy if you have not done it before.
You have to align the image to the MIDDLE hole. This is called the MIDDLE LEFT=ML
Pivot offset is what you have to find.
You start with the value of 362 (1/2 of 724mm.)
You put this value in SYSTEMS PARAMETERS -----PIVOT HEIGHT
PIVOT WIDTH parameter will be the value that you will measure between the CENTRE of the punch hole and Bottom of the image ( or Horizontal TICK mark on the film).
Now expose 2 separations and put them on the PINS with one of the separations in REVERSE,
The grids will not overlap )unless you are very lucky)
Measure the distance (error) between the 2 separations and DIVIDE it by 2 and now Add it or Subratct it from 362 and put this value into PIVOT HEIGHT instead of 362. This procedure you will have to do a few times untill both Separations are in register.
So finaly the SYSTEM PARAMETERS values will look something like this(this is an example ONLY)
SYSTEM NAME: PROTOCOL
PUNCH POSIYION;,,h,
PIVOT HEIGHT;368.1
PIVOT WIDTH;68.4
MINIMUM FILM FEED; 559
SUBSET INCLUDES
0 YES
It is a long explanation of something that trainned engineers used to do , so I am sorry if you will find it hard to understand.
You also need a very accurate ruller and microscope for final measurements.
GOOD LUCK>
Hi PACH!
Thank you for this info. It helped me, although I jave some problems with punches.
When I try to image mentioned grid I get an error (offset top/right too big).
What is recommended EXPOSE S, W? Default is 0,0. Isn't that ok with punches? And to change image position with ML pivot point parametres (w, h)? How do Offset values influence Exposure and Punch?
I also had problems with film stuck after imaging and not entering the developer. I don't know whether that has something to do with settings i changed few times or just machine error.
if you could help me I'd be very grateful!
Kind regards!
Thank you for this info. It helped me, although I jave some problems with punches.
When I try to image mentioned grid I get an error (offset top/right too big).
What is recommended EXPOSE S, W? Default is 0,0. Isn't that ok with punches? And to change image position with ML pivot point parametres (w, h)? How do Offset values influence Exposure and Punch?
I also had problems with film stuck after imaging and not entering the developer. I don't know whether that has something to do with settings i changed few times or just machine error.
if you could help me I'd be very grateful!
Kind regards!
PACH
Well-known member
Hi Vedran,
The image has to clear the Bar punch as the film is under it, so Expose start W is usualy around 35 0r 38. Leave the H=0.
After all the adjustments the image will be always in the center of the middle hole.
Pivot Width is the value that will change the distance from the center of the punch hole and the first exposed line ( tick marks/first cut)
The Middle Hole is called Middle Left, so when you plot a small or large file ( one UP) it will always be alligned to the center of the middle hole.
Make sure that you turn off Markers/Labels when you do the calibration with your grid.
Does the film gets stuck when you are trying to use the punches? What is the front end that you plotting from?
Hello PACH,
OK, i think I got it know..just have to try it. The main problem in trying out all these options was the grid size, as I got errors regarding size. I'll turn off the Labels next time.
Film gets stuck after imaging with the use of punches,but not as a rule. I can't see the pattern. When i turned on the option Cut before exp. film didn't got stuck, just after I disabled it the film got stuck. May be just a random error, will have to try it out more.
Front end? I don't understand the question..
OK, i think I got it know..just have to try it. The main problem in trying out all these options was the grid size, as I got errors regarding size. I'll turn off the Labels next time.
Film gets stuck after imaging with the use of punches,but not as a rule. I can't see the pattern. When i turned on the option Cut before exp. film didn't got stuck, just after I disabled it the film got stuck. May be just a random error, will have to try it out more.
Front end? I don't understand the question..
PACH
Well-known member
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