Home

Go Back   IndieTalk - Indie Film Forum > Making The Film > DIY

Reply
 
Thread Tools Display Modes
Old 08-23-2010, 11:35 PM   #1
Buddy Greenfield
Basic - Premiere Expired
 
Buddy Greenfield's Avatar
 
Join Date: Oct 2006
Location: Chicago IL
Posts: 1,228
Table Jib

Nothing much to see, or say.















-Thanks-

Last edited by Buddy Greenfield; 08-23-2010 at 11:59 PM.
Buddy Greenfield is offline   Reply With Quote
Old Today   #1A
film guy
Basic Member
 
Posts: 17

 
Old 08-24-2010, 12:22 AM   #2
Buddy Greenfield
Basic - Premiere Expired
 
Buddy Greenfield's Avatar
 
Join Date: Oct 2006
Location: Chicago IL
Posts: 1,228



-Thanks-
Buddy Greenfield is offline   Reply With Quote
Old 08-24-2010, 12:04 PM   #3
knightly
Basic Member
 
knightly's Avatar
 
Join Date: Mar 2005
Location: MN, USA
Posts: 8,176
Nice and portable My crane takes 2 people to setup
knightly is offline   Reply With Quote
Old 08-25-2010, 02:05 AM   #4
Buddy Greenfield
Basic - Premiere Expired
 
Buddy Greenfield's Avatar
 
Join Date: Oct 2006
Location: Chicago IL
Posts: 1,228
Thanks for checking it out Knightly.

Itís portable yes, but heavy for what it is.

I want to make a badass little robotic table dolly/jib that drives along and has a control head and boom motors, but itís just too damn expensive at the moment, but this one between two saw horses will be fun.

I'm going to add a scaled down 'Knightly' tilt cage to it as soon as I get the rest of the parts.

-Thanks-
Buddy Greenfield is offline   Reply With Quote
Old 08-25-2010, 10:07 AM   #5
knightly
Basic Member
 
knightly's Avatar
 
Join Date: Mar 2005
Location: MN, USA
Posts: 8,176
hehe... Axman has stepper motors for relatively cheap and http://www.sciplus.com has tons of cool stuff.
knightly is offline   Reply With Quote
Old 08-25-2010, 11:58 AM   #6
Buddy Greenfield
Basic - Premiere Expired
 
Buddy Greenfield's Avatar
 
Join Date: Oct 2006
Location: Chicago IL
Posts: 1,228
Thanks for the links.

I’ve been meaning to pop over to American Science, but every time I go I nickel and dime a fortune away.
I could use a few packs of each size spacers (25 for $2.50) and I really want some two inch (OD) sealed bearings (3/4 ID) 2 for $4 though.

It’s really wouldn’t be that expensive, but I’m saving for a camera, so to me it’s expensive compared to slowly collecting various parts out of “junk” to reuse.

If Franken Jib (Jib-Bot) lives, it’ll sound like a can opener in one function, and a dvd player eject in another.

-Thanks-
Buddy Greenfield is offline   Reply With Quote
Old 09-24-2010, 08:54 PM   #7
gooberman
Basic - Premiere Expired
 
gooberman's Avatar
 
Join Date: Jul 2010
Location: Fayetteville, NC
Posts: 864
Quote:
Originally Posted by knightly View Post
hehe... Axman has stepper motors for relatively cheap and http://www.sciplus.com has tons of cool stuff.
Sweet link!
I wanna use one of these...
And
To make one of these
https://www.youtube.com/watch?v=B996cHFCIv4

The stepper motor
Quote:
rated at 2.4VDC 1.8A, has 200 steps per revolution and measures 2-3/8" square x 2-3/8" long with a 1/4" dia x 1" long flattened shaft and (4) leads. Has a mounting hole on each front corner of the case.
The gear
Quote:
This big cast-iron gear weighs in at 10.20 lbs and measures 6-3/4" dia x 1" thick with 65 teeth (more than twice as many as you) at a #12 pitch. The hub is 2-1/2" dia x 7/8" thick (making the gear 1-7/8" thick at the center) with a keyed and slotted 7/8" ID bore. Comes pre-greased.
I'll need some of these to...

My only question is how do the small gears attach to the motor.
gooberman is offline   Reply With Quote
Old 09-24-2010, 11:11 PM   #8
Buddy Greenfield
Basic - Premiere Expired
 
Buddy Greenfield's Avatar
 
Join Date: Oct 2006
Location: Chicago IL
Posts: 1,228
I have been playing with stuff like that lately (Along with geared head ideas), but I need stuff I just don't have. I did get some RC cars for their motors to play around with, but they are too many RPMS without gearing it down.

That ten pound gear from Sci Surplus would be over kill I think. You can buy servo and gear kits to make a control head. Like I said I have been trying, but without the right stuff I'm just spinning my wheels (Literally).

Maybe Wheat or Knightly has more gear driven mechanical operation experience than I do, and can help you (And me!) out more with general questions on it? (Sorry man.)


As far as how gears attach. Usually by the motors shaft. (Some have a set screw, some might just force fit for smaller applications.) Sometimes the shaft is round and has a set screw hole, or sometimes the shafts are flattened in one area and it matches a slot in the gear body, then a set screw might be in the mix to fasten it to that flattened section.

-Thanks-

Last edited by Buddy Greenfield; 09-24-2010 at 11:15 PM.
Buddy Greenfield is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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

Forum Jump


All times are GMT -5. The time now is 02:59 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.


©IndieTalk