Re: RE: Gene is building a tank! [TANKS]

[<adt22-at-drexel.edu>]

----- Original Message -----
From: Gene Burbeck <gburb-at-advantagecs.com>
Date: Tuesday, October 17, 2006 1:53 pm
Subject: RE: Gene is building a tank! [TANKS]

> I'm planning on using go-kart band brakes on the differential 
> shafts. 
> 
> http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_23065
> _23065
> 
> This band brake has a 1" bore and keyway, so machining should be
> minimal. I'll use several big servos configured for lots of 
> leverage to
> pull on the brakes.
> 
> http://cgi.ebay.com/Hitec-HS-755HB-1-4-Scale-Servo-w-Karbonite-
> Gears_W0QQitemZ120041625307QQihZ002QQcategoryZ34063QQcmdZViewItem
> 
> Speaking of servos, anyone know of a good source for big ones at
> reasonable prices? Thanks,

There are also servo kits to turn a stronger-than-a-servo motor into a servo, I 
think all the Pittelli's use them - I'm not sure if it'd be cheaper (depending on 
your own stock) but it could be stronger.

-Amir

> Gene
> 
> ________________________________
> 
> From: tanks-admin-at-rctankcombat.com [tanks-admin-at-rctankcombat.com]
> On Behalf Of Steve Tyng
> Sent: Tuesday, October 17, 2006 12:35 PM
> To: tanks-at-rctankcombat.com
> Subject: RE: Gene is building a tank! [TANKS]
> 
> 
> Gene,
> 
> I'm looking forward to seeing your Liberty come together.
> 
> What are you planning to use for your brakes?
> 
> 
> Steve Tyng
> 
> 
> 
> 
> ________________________________
> 
>       From: tanks-admin-at-rctankcombat.com
> [tanks-admin-at-rctankcombat.com] On Behalf Of Gene Burbeck
>       Sent: Tuesday, October 17, 2006 11:27 AM
>       To: tanks-at-rctankcombat.com
>       Subject: RE: Gene is building a tank! [TANKS]
>       
>       
>       No, the first arrangement is just how I set the parts out
> initially to see how they will fit together. The last three 
> pictures are
> the most recent. I wanted to include that 1st picture mainly to 
> show the
> motor and transaxel arrangement. I want to make the drivetrain like 
> thatof a real tank, with just one motor driving a differential. 
> There will
> be a brake on each side of the differential to slow down one track or
> the other for steering. 
>         
>       As I said in my first message, I'm coming from building fighting
> robots, so a lot of my parts and materials are leftovers from that. 
> Hereis a partial list of the parts I'm using for the Mark VIII 
> Liberty:         
>       - 4X (slow, long-running mode, 24V) or 3X (fast, short-runtime
> mode, 36V) - Hawker 16 Ah battery-
> http://www.batterymart.com/battery.mv?p=SBS-J16
>       - LEM-130 motor -
> http://www.evparts.com/shopping/product_details.php?id=521&product_id=16
> 05
>       - Curtis 400 amp esc -
> http://curtisinst.com/index.cfm?fuseaction=cProducts.DownloadPDF&file=50
> 036REVC%2Epdf
>       - Northern Tool go-kart differential -
> http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_35768
> _35768
>         
>       While all this stuff is very expensive, it is mostly leftover
> from robots, so I'm not spending an arm and a leg to make this 
> tank. 
>         
>       My goals in this project are probably quite different than those
> of many other tank builders. Rather than combat effectiveness or 
> strictscale reproduction I'm going for speed, strength, and in 
> general making
> it fun to drive and maintainance-free. 
>         
>       Gene
>         
> 
>