RCMT Forums

Go Back   RCMT Forums > RCMT - Other > Pulling trucks, and tractors and the build ups
Reload this Page Insane Puller
Register FAQ Members List Calendar Mark Forums Read

Reply
Page 2 of 3 < 1 2 3 >
 
Thread Tools Display Modes
  #21  
Old 01-18-2010, 09:00 PM
nrctpaXpres's Avatar
nrctpaXpres nrctpaXpres is offline
Moderator
  
Join Date: Jun 2006
Posts: 3,198
Default
if I was building it I would narrow the rear end down as far as I could go but mine are only a little narrower that 12" after all was said and done
Reply With Quote
  #22  
Old 01-20-2010, 10:12 AM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
OK, next question! Front track width, any advice on wide or narrow?
Reply With Quote
  #23  
Old 01-21-2010, 08:06 PM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
...a couple of pics of the design so far. The angle grinder gears came in today, Makita, and look very nice. There is gonna be a bit of machining to do on the spur but it looks like they're up to the task. Thanks to all who have helped so far
satio puller mk1 1.jpg

satio puller mk1 2.jpg
Last edited by kineteks; 07-23-2010 at 05:56 PM.
Reply With Quote
  #24  
Old 01-21-2010, 10:38 PM
dpero dpero is offline
Member
  
Join Date: Jun 2006
Posts: 474
Default
Don't think it really matters narrow or wide. Whatever looks right I guess.

Looks great so far!
Reply With Quote
  #25  
Old 01-22-2010, 05:34 PM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
Update.... the motor showed up today, it's just sick! Took a couple of passes on the spur gear in the lathe, pretty tough material. Carbide tools are required and tapping holes is out of the question, for me anyway. No question about them being stout enough though. Saito owners manual lists the output as 7 HP! probably more than a little optimistic but fun to brag about.
Reply With Quote
  #26  
Old 03-09-2010, 02:01 PM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
How powerful should the steering servo for an Insane puller be?

..is 60 in/oz enough?
Reply With Quote
  #27  
Old 03-09-2010, 02:59 PM
nrctpaXpres's Avatar
nrctpaXpres nrctpaXpres is offline
Moderator
  
Join Date: Jun 2006
Posts: 3,198
Default
I use regular cheap servos the front get really light on them when they run.
Reply With Quote
  #28  
Old 03-09-2010, 09:07 PM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
Thanks! I'll get the mini-servo I've been looking at. It makes 64 oz/in and will fit right in my front axle

I've got about 1/2" of ground clearance at the lower two valve covers with the front wheels on the ground. Sound about right?
Reply With Quote
  #29  
Old 03-09-2010, 10:38 PM
dlmealy dlmealy is offline
Registered
  
Join Date: May 2006
Posts: 825
Default
I would not recomend using a mini servo. I had one on mine originally and had nothing but trouble with it. The high speed that these things run down the track does not help the servo when you brush the wall. I tore up at least three mini servos with servo savers before I switched to the standard sized Futabas. Like Joe said nothing fancey is needed.

Darren
Team BNB
Reply With Quote
  #30  
Old 03-10-2010, 09:28 AM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
Dang! ...though I was thinking, 15lbs pulling 65lbs might be a little rough on a mini servo, though it does have the torque of a standard servo and metal gears... I have the front axle drawn both ways so I guess I'll revert to the bigger configuration.

...any comment on the ground clearance?
Reply With Quote
  #31  
Old 03-10-2010, 12:29 PM
dlmealy dlmealy is offline
Registered
  
Join Date: May 2006
Posts: 825
Default
Don't feel like you have to change. You may have a better servo that will take a little more abuse than what I was using. As for the clearance as long as you have at least .25" you should be fine.

Darren
Team BNB
Reply With Quote
  #32  
Old 03-10-2010, 02:49 PM
dpero dpero is offline
Member
  
Join Date: Jun 2006
Posts: 474
Default
But... if you bust up a steering block, your valve cover might be the next closest thing to the ground? At least that's the way it looks from the side view.
Reply With Quote
  #33  
Old 03-10-2010, 02:51 PM
nrctpaXpres's Avatar
nrctpaXpres nrctpaXpres is offline
Moderator
  
Join Date: Jun 2006
Posts: 3,198
Default
I am using a mini servo on my 2wd 15# nitro puller it is OK....it fits better...
Reply With Quote
  #34  
Old 03-10-2010, 03:07 PM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
I'll ponder the servo question for a bit....

Yes, one of the things that makes this so "Insane" is how inappropriate a radial is for the intended use. It's a big motor and even dragging the valve covers it will have a higher than idea CG I would think. The Dutch tractor that inspired me definitely has the lower two cylinders plowing furrows at times it seems. I guess it comes with the territory.

I haven't even finished designing it and it's way over budget for time & $.... but it'll be pretty bad-azz to finally fire it up and try to pull something.
Reply With Quote
  #35  
Old 04-27-2010, 01:09 PM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
The insane puller project is coming along and I'll try to post some pics in the next week or so, it may be a roller by then. A lot more work than I expected, but stuff always seems that way. Thanks for all the help/info so far.
Reply With Quote
  #36  
Old 04-30-2010, 05:16 PM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
Some quick pics.... I'm pretty happy with it so far. No really big issues yet, though it'll need to go on a diet... it's almost 12 lbs now
Still tons of details to work out, but it may run this summer if I can keep putting the time into it
Front 1 RCMT.jpg

side 1 RCMT.jpg
Last edited by kineteks; 07-23-2010 at 05:57 PM.
Reply With Quote
  #37  
Old 04-30-2010, 09:01 PM
dlmealy dlmealy is offline
Registered
  
Join Date: May 2006
Posts: 825
Default
Looking good. Do you plan to run at any NR/CTPA events?
Reply With Quote
  #38  
Old 05-02-2010, 02:31 PM
dirtdiver4 dirtdiver4 is offline
Member
  
Join Date: Jan 2010
Location: Connecticut
Posts: 65
Default
Please take a video when you fire it up. I can't wait to hear it run.

dirtdiver4
Reply With Quote
  #39  
Old 05-03-2010, 09:02 AM
Mr. Giggles
Guest
  
Posts: n/a
Default
beautiful machine work

What did you use to machine it?
Reply With Quote
  #40  
Old 05-03-2010, 12:07 PM
kineteks kineteks is offline
Contributor
  
Join Date: Jan 2010
Posts: 55
Default
Thanks, it's coming out OK... but heavy

I'll need to get it running, down to weight and figured out before I think about bringing it to an event. Once it's pulling a decent amount of weight I'll try to get up to a pull with the RC Pullers of CNY?

Yeah, I can't wait to hear it run... I'll get a vid of the event!

It's all been done on a Bridgeport EZ Trak 2 axis & a tool-room lathe.
Reply With Quote
Reply
Page 2 of 3 < 1 2 3 >

« Previous Thread | Next Thread »
Thread Tools
Display Modes
Linear Mode Linear Mode

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 -4. The time now is 02:02 PM.



Radio Control Monster Truck Network © 1997-2009
Home | Gallery | Reviews | Links | Servo chart| Drill/Tap charts
Click for the RCMT Calendar




Site Design by: ClickOnPC.com
Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
Radio Control Monster Truck Network © 1997-2009
Contact Us - RCMT.net Forums - Archive - Top