Graham Symns
08-06-2010, 7:00 PM
Now that I have my 32Ex running after having repaired the power supply I am into alignment of the optics..my first time even tho' Ive been a co-owner of it for several years.It lived at my business partner's place.
After my initial trial run I reckoned that there were some improvements to be made.
I measured the lens carrier and using Corel I designed a A4 sheet of targets having wings on the each side to grab the sides of the lens carrier.
This was OK but for the fact that I saw combustion products accumulating on the top-side of the lens.
So I removed the lens carrier and made a dummy carrier from a piece of acrylic and used 2 x 2mm screws to fix the lens carrier to the optcs unit.
I don"t have a supply of the original screws as I cannot source them, along with a tap, locally until I have a technical descrption of these socket head screws.ie thread type and pitch.(HELP)
I commenced and finished the the alignment after most of the day fooling around with the adjustment system.
At the end of the process I noted the amount of deposit on the pseudo lens carrier (acrylic) and saw a collection of brown sticky stuff which I now do not have to clean off the lens itself.
So I thought that some others may be interested in this so I have posted a picture.
The upper part shows a portion of a A4 sheet showing a small group of the targets.
I should also agree with the Epilog document dealing with this process that a heap of these targets would be used ..my bulk sheet contains 11 x 5 units most of which were used.
The bottom left shows 1 unit cut out with its wings folded down ready for use while the bottom right shows the dummy lens carrier with its burden of goo.
Previous to this I fitted a test dial indicator to the brackets that hold the focus tool and did a check of the levelness of the table and found that the flatness was typically within 0.1 mm of a reference position taken at the top left area of the table.
Previous reading made the point that it was a good idea to make the adjustment screws free running BEFORE attempting the process.
I wish that I had read this BEFORE starting.
I hope that this adds to the pool of knowledge on this subject.
157612
Regards
After my initial trial run I reckoned that there were some improvements to be made.
I measured the lens carrier and using Corel I designed a A4 sheet of targets having wings on the each side to grab the sides of the lens carrier.
This was OK but for the fact that I saw combustion products accumulating on the top-side of the lens.
So I removed the lens carrier and made a dummy carrier from a piece of acrylic and used 2 x 2mm screws to fix the lens carrier to the optcs unit.
I don"t have a supply of the original screws as I cannot source them, along with a tap, locally until I have a technical descrption of these socket head screws.ie thread type and pitch.(HELP)
I commenced and finished the the alignment after most of the day fooling around with the adjustment system.
At the end of the process I noted the amount of deposit on the pseudo lens carrier (acrylic) and saw a collection of brown sticky stuff which I now do not have to clean off the lens itself.
So I thought that some others may be interested in this so I have posted a picture.
The upper part shows a portion of a A4 sheet showing a small group of the targets.
I should also agree with the Epilog document dealing with this process that a heap of these targets would be used ..my bulk sheet contains 11 x 5 units most of which were used.
The bottom left shows 1 unit cut out with its wings folded down ready for use while the bottom right shows the dummy lens carrier with its burden of goo.
Previous to this I fitted a test dial indicator to the brackets that hold the focus tool and did a check of the levelness of the table and found that the flatness was typically within 0.1 mm of a reference position taken at the top left area of the table.
Previous reading made the point that it was a good idea to make the adjustment screws free running BEFORE attempting the process.
I wish that I had read this BEFORE starting.
I hope that this adds to the pool of knowledge on this subject.
157612
Regards