Re: motors [TANKS]

["Derek Engelhaupt" <tankme-at-gmail.com>]

I'm just using a standard #40 ANSI sprocket that I got from www.surpluscenter.com.  I was planning on using one of the pairs of the EV Warrior motors I have, but I may have found an alternative since I am really limited in space in the rear of my tank.  I could make the EV's work, but I'm not sure at this point if I WANT to make them work.  If I made them work, maintenance would be a major hassle.  I did find some that are similar to the ones Steve was selling.  The are on Ebay:  http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=014&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=330060009617&rd=1&rd=1 .  These are 250W so I'm not quite sure if they have enough power or not.  I emailed the seller and the motors don't have a base that they mount to, they have holes in the face to facemount them.  Yet another alternative would be these motors, but I have ruled them out on this tank because of their large size:  http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=014&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=330060009572&rd=1&rd=1 .  Those are rated for 36V-at-750W and at 24V they would end up putting out about 500W according to my calculations.  There is yet another alternative, but I'm not sure if I can let the cat out of the bag on that matter.

 

Derek

 

On 1/20/07, rcdude gt <rcmac143-at-hotmail.com> wrote:

derek where did you find the sprocket for that chain. and what motor are you
planning on using


>From: "Derek Engelhaupt" <tankme-at-gmail.com>
>Reply-To: tanks-at-rctankcombat.com
>To: tanks-at-rctankcombat.com
>Subject: Re: motors [TANKS]
>Date: Sat, 20 Jan 2007 19:52:23 -0600
>
>I have that exact chain that I am trying out on my ASU-85.  It looks
>workable, but I have yet to be able to put a full load on the tracks to see
>how they perform.  I have cut the center tabs off of mine with a
>side-cutters so those tabs in the middle are now non-existant in my
>installation.  Took awhile to cut them all off and got a nice blister in
>the
>process (weak computer geek hands).  No offense to any computer geeks out
>there or individuals aspiring to become computer geeks.  In my mind,
>computer geeks are a noble group of people.  One note, the track is not of
>the straight running variety and for that reason I am using sprockets on
>both ends of the track to keep it from coming off of the idler.  I'm sure a
>regular non-sproketed idler would also be workable, but that's just not the
>route I decided to pursue.  I also had to make quite a wide alignment
>groove
>in my wheels (about 1") for the chain to run through.  The tracks are quite
>light due to the use of acetal for the tabletop area, but probably not as
>light at the TTS system.  They would be lighter that using the 2060
>attachment chain.  I think if you bolt more material to them in order to
>widen them it will increase the weight of the tracks significantly.
>Without
>having my suspension totally complete I am dealing with track droop since
>my
>design has no top rollers to hold the track up.  That problem will more
>than
>likely be solved by increasing the tension of the very first and very last
>road wheels on the tank.  I think that will keep the droop to a minimum and
>allow the track to run smoothly.  Not having much time to work on the tank
>and the increasingly frigid weather here in MN (no heat in my garage) has
>kept me from completing the left side suspension and motor mounting
>otherwise I could begin some field testing of the system.  BTW, tank T048
>made by Paul
>Ratajczak< http://www.rctankcombat.com/statistics/OperatorHistory.cgi?name=Paul
>Ratajczak> is using this same type of chain, but it looks like he has no
>suspension on his tank unlike me.  I decided to go with these tracks
>because
>of the price and simplicity of installation.  All in all I paid $40 for the
>tracks and I'm using about $10 worth of sprocket to drive them.  Fifty
>dollars is well worth the price of admission if it saves me track building
>time.
>
>Derek (no computer geeks were harmed in the writing of this Email)
>Engelhaupt
>
>
>On 1/20/07, OdysseySlipways-at-aol.com < OdysseySlipways-at-aol.com> wrote:
>>
>>  I'm tempted to get one of them chain units just to check it out - can't
>>beat the price
>>
>>Chris
>>Odyssey Slipways <http://hometown.aol.com/odysseyslipways/index.html>
>>