Homemade 35mm Adapter

Paul Bettner · December 11th, 2003, 07:50 PM

Bob, you're actually close to the mark on how to create real ground glass. You basically take the grit, add a bit of water, and rub two pieces of glass together for about 20 minutes. Using that method you can create better-than-professional-grade true GG, if you take your time at it :-)

paulb

John Gaspain · December 11th, 2003, 07:57 PM

<<<-- Originally posted by Peter Sciretta : i am using 2 AAA batteries (1.5 volts each) on the cd motor and I think thats going too fast and making more noise then it should... not nearly as much as the radio shack kiddie motors but noticable noise... any suggestions?

BTW: What project box size you guys using? -->>>

7x5x3, its takes a bit of heat to make the GG fit without rubbing

Peter Sciretta · December 11th, 2003, 08:02 PM

what do you mean by heat?

Tom Jensen · December 11th, 2003, 08:03 PM

may burn the motor out if it doesn't it will spin REALLY FAST!

I took the motor/CD holder out of an old portable CD player, snapped a CD into it and connected it to 3v. WHOA! It spins too fast. The gyroscopic effect was very pronounced and I was concened if my"Agus35 Mark 12 Pro Rev 1.0" was jerked to quickly the CD might come of holder!

I then connected it to a single 1.5v cell and its much better. It still spins at a good rate.

Tom

John Gaspain · December 11th, 2003, 08:08 PM

<<<-- Originally posted by Peter Sciretta : what do you mean by heat? -->>>

fire, use a mini blow torch or windproof lighter to melt the inside of the box to fit

Peter Sciretta · December 11th, 2003, 08:09 PM

by fire/heat what exactly did you do to the box because i have the exact box and can't figure out how to make the lens fit?

John Gaspain · December 11th, 2003, 08:32 PM

<<<-- Originally posted by John Gaspain : <<<-- Originally posted by Peter Sciretta : what do you mean by heat? -->>>

fire, use a mini blow torch or windproof lighter to melt the inside of the box to fit -->>>

Danny Tan · December 11th, 2003, 08:59 PM

www.elpez.com/agus35test.mpg linked

Ryan Henry · December 11th, 2003, 09:47 PM

Here are two pictures of my quick-and-dirty attempt to make one of these things. It works! Now I'm going to spend a few dollars and make a nice one.

The lense was biult into a 35mm camera and by the time I wrestled it out it could no longer be focused. I changed the motor on it and had to mount the lense backward to get it far enough from the GG. The big gash in the side is from only having 100 packs of CDs and having to cut a huge hole to shove my camera into.

http://vistatheater.org/~rhenry/agus...35-1-front.jpg
http://vistatheater.org/~rhenry/agus...s35-1-side.jpg

J. Clayton Stansberry · December 11th, 2003, 10:17 PM

For those looking for fine grit sandpaper, try the auto parts store in the paint section. They usually have really fine grit wet/dry paper for doing touch up or other paint/body work. I have gotten 1000 grit at auto part stores before. They should at least have 600...

John Gaspain · December 11th, 2003, 10:33 PM

I added an adjustable fresnel lens

http://www.imagestation.com/picture/...8/fa528f0c.jpg

edited to say: HELL YEA! thats what i needed! its adjusted out a little over 1/4". This fixed any vignetting.

J. Clayton Stansberry · December 11th, 2003, 10:54 PM

John,

A couple of questions:
1. Where did you get the freznel lens?
2. Where did you get the fan?
3. Is the box the one from Radio Shack?
4. When are we going to see some footage with the fix?
5. Plans?

Agus,
How are your plans coming?

Thanks in advance...
Clay

Paul Bettner · December 11th, 2003, 10:55 PM

Hey John, what tool did you use to cut such perfect holes in the box?

John Gaspain · December 11th, 2003, 11:02 PM

<<<-- Originally posted by J. Clayton Stansberry : John,

A couple of questions:
1. Where did you get the freznel lens?
2. Where did you get the fan?
3. Is the box the one from Radio Shack?
4. When are we going to see some footage with the fix?
5. Plans?

Agus,
How are your plans coming?

Thanks in advance...
Clay -->>>

1-Walgreens $1.50
2-computer store
3-radio shack
4-I need a better GG, so in a while
5-Just look at the pictures for now

John Gaspain · December 11th, 2003, 11:04 PM

<<<-- Originally posted by Paul Bettner : Hey John, what tool did you use to cut such perfect holes in the box? -->>>

I used a hole saw attachment on my milling machine, a drill should work tho

December 11th, 2003, 07:57 PM	#287
John Gaspain Major Player Join Date: Oct 2003 Location: WA-USA Posts: 371	<<<-- Originally posted by Peter Sciretta : i am using 2 AAA batteries (1.5 volts each) on the cd motor and I think thats going too fast and making more noise then it should... not nearly as much as the radio shack kiddie motors but noticable noise... any suggestions? BTW: What project box size you guys using? -->>> 7x5x3, its takes a bit of heat to make the GG fit without rubbing __________________ The glory of the World passes by.

December 11th, 2003, 08:03 PM	#289
Tom Jensen New Boot Join Date: Dec 2003 Location: Spanish Fork, Utah Posts: 7	Using a 9v battery.... may burn the motor out if it doesn't it will spin REALLY FAST! I took the motor/CD holder out of an old portable CD player, snapped a CD into it and connected it to 3v. WHOA! It spins too fast. The gyroscopic effect was very pronounced and I was concened if my"Agus35 Mark 12 Pro Rev 1.0" was jerked to quickly the CD might come of holder! I then connected it to a single 1.5v cell and its much better. It still spins at a good rate. Tom

December 11th, 2003, 08:08 PM	#290
John Gaspain Major Player Join Date: Oct 2003 Location: WA-USA Posts: 371	<<<-- Originally posted by Peter Sciretta : what do you mean by heat? -->>> fire, use a mini blow torch or windproof lighter to melt the inside of the box to fit __________________ The glory of the World passes by.

December 11th, 2003, 08:32 PM	#292
John Gaspain Major Player Join Date: Oct 2003 Location: WA-USA Posts: 371	<<<-- Originally posted by John Gaspain : <<<-- Originally posted by Peter Sciretta : what do you mean by heat? -->>> fire, use a mini blow torch or windproof lighter to melt the inside of the box to fit -->>> __________________ The glory of the World passes by.

December 11th, 2003, 10:17 PM	#295
J. Clayton Stansberry Major Player Join Date: Sep 2003 Location: Colorado Posts: 316	For those looking for fine grit sandpaper, try the auto parts store in the paint section. They usually have really fine grit wet/dry paper for doing touch up or other paint/body work. I have gotten 1000 grit at auto part stores before. They should at least have 600... __________________ I understand everything about nothing.

December 11th, 2003, 07:50 PM	#286
Paul Bettner Regular Crew Join Date: May 2003 Location: Dallas, TX Posts: 42	Bob, you're actually close to the mark on how to create real ground glass. You basically take the grit, add a bit of water, and rub two pieces of glass together for about 20 minutes. Using that method you can create better-than-professional-grade true GG, if you take your time at it :-) paulb

December 11th, 2003, 08:02 PM	#288
Peter Sciretta Regular Crew Join Date: Nov 2003 Posts: 72	what do you mean by heat?

December 11th, 2003, 08:09 PM	#291
Peter Sciretta Regular Crew Join Date: Nov 2003 Posts: 72	by fire/heat what exactly did you do to the box because i have the exact box and can't figure out how to make the lens fit?

December 11th, 2003, 08:59 PM	#293
Danny Tan Regular Crew Join Date: Dec 2003 Location: Rowland Heights, CA Posts: 62	www.elpez.com/agus35test.mpg linked

December 11th, 2003, 09:47 PM	#294
Ryan Henry New Boot Join Date: Dec 2003 Location: Marquette, Michigan, US Posts: 14	Here are two pictures of my quick-and-dirty attempt to make one of these things. It works! Now I'm going to spend a few dollars and make a nice one. The lense was biult into a 35mm camera and by the time I wrestled it out it could no longer be focused. I changed the motor on it and had to mount the lense backward to get it far enough from the GG. The big gash in the side is from only having 100 packs of CDs and having to cut a huge hole to shove my camera into. http://vistatheater.org/~rhenry/agus...35-1-front.jpg http://vistatheater.org/~rhenry/agus...s35-1-side.jpg

December 11th, 2003, 10:33 PM	#296
John Gaspain Major Player Join Date: Oct 2003 Location: WA-USA Posts: 371	I added an adjustable fresnel lens http://www.imagestation.com/picture/...8/fa528f0c.jpg edited to say: HELL YEA! thats what i needed! its adjusted out a little over 1/4". This fixed any vignetting. __________________ The glory of the World passes by.

December 11th, 2003, 10:54 PM	#297
J. Clayton Stansberry Major Player Join Date: Sep 2003 Location: Colorado Posts: 316	John, A couple of questions: 1. Where did you get the freznel lens? 2. Where did you get the fan? 3. Is the box the one from Radio Shack? 4. When are we going to see some footage with the fix? 5. Plans? Agus, How are your plans coming? Thanks in advance... Clay __________________ I understand everything about nothing.

December 11th, 2003, 10:55 PM	#298
Paul Bettner Regular Crew Join Date: May 2003 Location: Dallas, TX Posts: 42	Hey John, what tool did you use to cut such perfect holes in the box?

December 11th, 2003, 11:02 PM	#299
John Gaspain Major Player Join Date: Oct 2003 Location: WA-USA Posts: 371	<<<-- Originally posted by J. Clayton Stansberry : John, A couple of questions: 1. Where did you get the freznel lens? 2. Where did you get the fan? 3. Is the box the one from Radio Shack? 4. When are we going to see some footage with the fix? 5. Plans? Agus, How are your plans coming? Thanks in advance... Clay -->>> 1-Walgreens $1.50 2-computer store 3-radio shack 4-I need a better GG, so in a while 5-Just look at the pictures for now __________________ The glory of the World passes by.

December 11th, 2003, 11:04 PM	#300
John Gaspain Major Player Join Date: Oct 2003 Location: WA-USA Posts: 371	<<<-- Originally posted by Paul Bettner : Hey John, what tool did you use to cut such perfect holes in the box? -->>> I used a hole saw attachment on my milling machine, a drill should work tho __________________ The glory of the World passes by.