_^under^construc_tion

goes from half second to 10 second exposure. i finished this shortly after lomo released their official one for silly money, they went wireless, i went adjustable.

Step 1: You Get the Idea.

lead for stability, 10 battery's, can use ac adapter, went for a slider pot insted of rotary, remote control is from part of zenit shutter and car phone charger. rubber band drive pully made by friend with access to lathe, i tried a diy but it was a bit naff.

Step 2:

early prototype tried adding a light but it was most ineffective, the project was shelved for a while 23march 2011. incidently having batterys on top and light on front balenced well so high speed could be used

Step 3: What the Spinner Does

first image 10 second exposure caught the entire blackwall tunnel
second image turning slowly by hand not the smoothest action hense iffy exposure values
third image normal use but then polar coordinated in photoshop (thats an instructable in itself, im meaning to show a good technique at some point)

Step 4: Loosen This Screw to Get Handel Off

Step 5: Get Sizes Right

the pully wheel, and the flat side spindel
t tried modifying an existing plastic pully wheel from a sash window (size close)attached to nut and bolt put in power drill and file, went a bit oval so i got al at the toolmaking department to adjust a al-u-min-ni,um cam belt pully (also from mfa, was part of the 1st prototype)
i got the flat sided spindel a bit wrong permanent attached to gears so a screw in base of spinny bit keeps it level

Step 6: Sockets for Remote and External Power

best not mix em up think i got the jack socket cut off terminal right, normaly used to cut speaker on audio devices when headphoning

Step 7: Speed Range

rpm devided by 60
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approximate (changes) length of 360 photo neg devided by width of image slot

think this is formula i used, i just wanted a rougth idea what to engrave on the box

Step 8: The Box

its a money box the slot came in handy ,needed lengthening to accomodate slide resistor

Step 9: I Bought the Gearbosx From Mfa 3000:1 Ratio

they got website, they hour drive from me,they in big black barn with shouty dog, i wanted to get touchey feeley with the products, quality box forget the price 4.5v to 15v ,i took plastic cover off to help fit and i like the look

Step 10: Pwm Speed Regulator

parrently better than just a pot, it uses a chip and pot , i swaped the twisty type with slidey type, then i thought can it go slower, so i pot random resistor in series used switch to cut it in out circit to maximise speed range