Recent content by Nick Walters

Very good point. I havn't had the chance to purchase the camera yet, so the whole rig is still just on paper...this will definitely be used in the design! Thanks :)

I've actually seen this exact design of rig in use with 35mm cameras...I'm not the first to think of this by any means, but I do believe my rig will be the fastest. From what I've been able to find your ideas on design seem to mesh exactly(although I have no access to plans or anything) with...

You know, I was actually thinking a little on the forces at work here, and I realize it will be insanely high...B4 I run her at top speed I may build a circular track on which the end of the rig travels, in an attempt to stabilize the whole thing so it doesn't fly apart...10 pounds of 150g's as...

The camera is completely solid state...no moving parts besides shutter, which I'm not even sure if it's a real physical shutter, but I have a good feeling that since there is a minimum of moving parts(the focus , zoom, and iris will be locked) that it'll work out ok...I'm a big fan of solid...

Is accurate control of amperage and ramping up voltage neccesary? The cheaper motor use 130vdc, and I was planning on using 11 cheaper lead acid batteries in series to provide 132v(close enough), and directly connect to the motor through a throw switch. Would there be a lot of problems at start...

I guess I'm right in thinking that if I get a lower HP motor...like a 1/4 instead of 1/2 that it'll basically double the amount of time to get up to speed?...the reason I wonder about this is that I see that a Bodine 1/2hp 250rpm costs around $700(couldn't find an Ebay one), while a 1/8 on E-bay...

I started trying to calculate all this, and got no-where...I need to take a refresher in my physics, lol. Am I right in thinking that you just calculated for two 10 pound loads(20lb=9.1kilos)? cause I actually was guessing that the entire load would be about 10 pounds. the camera is literally a...

Oh and actual buildup to 300 RPM wouldn't be much of a problem...I estimate that if it could come up to speed in 5-10 minutes that I could effectively get the shot.

for the actual camera system there would be zero cable attachments. The camera would be powered and store images to itself...it by itself and mounting system would weigh under two pounds...of course the motor would require wiring but this would be independent of the shaft... If a system for...

Oh, also I was already thinking about drag when this was just a sparkle in my head, and thought that a couple high speed fans with ducts pointing directly onto the outside of the rig might help to reduce drag...as well as just applying general intelligent drag design into the rig...as in having...

I realized at the beginning that this wouldn't be an easy project, and I've tackled a few hard projects, but mostly in the realm of stabilization, but I think my real world experience can help at least a little bit in this...although I greatly realize the need to pay attention to the experts, so...

I myself am the artistic type, and was unsure where to look for help, so I'm posting here. I'm trying to build a camera rig to spin around 10 pounds max with a 10ft. diameter at 300rpm. I'm wondering what exact forces are required to do such a thing. If anyone needs more specifics please let...