Old 05-04-2013, 11:55 PM #1
Junior Member
 
Join Date: May 2013
Posts: 2
Rep Power: 0
poparms is on a distinguished road
poparms poparms is offline
Junior Member
 
Join Date: May 2013
Posts: 2
Rep Power: 0
poparms is on a distinguished road
Default First Spirograph

Hey im doing a project for school, and i need/want to make a spirograph. but i have one problem i can only seem to make 1 shape. I think its due to either the helicopter blades spinning too quickly or the 25 ohm pot not doing that much to the speed.

all i want it to do is maybe make 3-4 diff shapes nothing fancy

http://laserpointerforums.com/attach...1&d=1367708101

edit: also im using a 5mw laser not that it matters
Attached Thumbnails
First Spirograph-dscn0861-1-.jpg  



Last edited by poparms; 05-04-2013 at 11:57 PM.
poparms is offline   Reply With Quote


















Old 05-05-2013, 12:59 AM #2
daguin's Avatar
Class 4 Laser
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 12649
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
daguin daguin is offline
Class 4 Laser
daguin's Avatar
 
Join Date: Mar 2008
Location: Sunny Southern California
Posts: 16,636
Rep Power: 12649
daguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond reputedaguin has a reputation beyond repute
Default Re: First Spirograph

If you are only getting one shape, then one of the following is happening:

1) one of your mirrors is exactly flat
2) one of your mirrors is not spinning
3) your pot is not doing anything to the speed of the motor

Peace,
dave
__________________
How To Get Along In and Be Accepted in the Forum

If you got some value out of reading this forum, how about donating $2 to keep it going?
Click Here to donate

Love all, trust a few, do wrong to none.
-William Shakespeare
daguin is offline   Reply With Quote
Old 05-05-2013, 02:10 AM #3
Junior Member
 
Join Date: May 2013
Posts: 2
Rep Power: 0
poparms is on a distinguished road
poparms poparms is offline
Junior Member
 
Join Date: May 2013
Posts: 2
Rep Power: 0
poparms is on a distinguished road
Default Re: First Spirograph

the pot works, but i dont think it has enough ohms to cover a wide enough range to change the shape drastically.

since the motor is only 6 volts and i have a 25 ohm resistor.

radioshack sells 5k ohm potentiometers, but don't think that would work at all.

the other stuff works.
poparms is offline   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

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 06:02 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC