Re: [TANKS] New Track Idea

[srwh74rn]

Just want to mention some tracks have the horn (teeth) in pairs or a single 
horn in the centre.  The dual horns have the tank road wheel roll between them. 
The single centred one go through the centre of a double road wheel (think oreo 
cookie on its side). Many modern armour vehicles use this type. 

Stewart 

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Re: [TANKS] New Track Idea

[Joshua Updyke]

Well it seems I cant upload a video here. Or at least I don't know how. So 
here is a link to the youtube version. It didn't load correctly for me the 
first time I watched it, but if I hit replay it worked fine. It is only 7 
seconds long, so watching it twice is not a big deal. :)

https://www.youtube.com/watch?v=avdna7Y5KMU

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Re: [TANKS] New Track Idea

[Joshua Updyke]

First off I want to thank everyone for the help in the design so far. The 
feedback has been great and being able to get answers to some questions has 
really pushed my design forward. I have done some redesign and was curious 
about peoples thoughts. I looked through the various links and that gave me 
some inspiration. So this new design is still similar and still uses 
standard roller chain. There is a tread that is molded over two pins. These 
pins replace the pins that are pressed into roller chain. I have talked 
with a roller chain manufacturer and they said they would be willing to 
sell me assembled chain parts if I got them in large enough quantities. 

I also designed a replacement roller chain plate that has the horn feature 
built into it. What I really like about this is it becomes an option. If 
you want horns you put the horned plate on, if you dont you use a standard 
roller chain plate. That also lets me make changes to the horned plate 
without scrapping the whole design. I had a few questions about the horns. 
These links are 3" wide, about how tall should the horn protrude? What 
width between the horns would be best? and what angle should the horn have 
to push the boogie back in place. Anyone have thoughts on those questions.

I was also planning on using a threaded rod and nylock nuts to hold the 
chain on. This would work okay, but finding a standard bolt that matches 
the roller chain is tough. For #35 a 6-32 fits really well. But other sizes 
don't fit as well. So I got the idea from FOA to use a headless pin and 
snap rings. But when you start looking at snap rings the common sizes dont 
match up very well. I have a few quotes out to snap ring manufactures to 
see if they have an of the shelf size that matches better then what I can 
find quickly. But then it hit me. Master Links for chain have this snap 
ring already and it is designed to hold chain together. So I am gonna call 
my roller chain person tomorrow and talk with him about being able to buy 
only the snap ring part of the master links. If they will sell me the chain 
unassembled, I don't see why they would not sell me the snap ring too. 

I am going to 3d print some of the horned link plates tomorrow at work and 
put them on my models just for testing. I will post photos then. Attached 
are some pictures from the CAD package, a few quick renderings and a short 
video of the assembly process.


 

 

 

 


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Re: [TANKS] Finaly, an RC tank

[isaac goldman]

Looks great.

Im going to guess he lives in Quebec :)
On 2015-02-09 1:59 PM, "neroc1" 
wrote:

> That is some very good work, nine years well spent,
> what part of the world are you in ?
>
> Neil R
>
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Re: [TANKS] Finaly, an RC tank

[neroc1]

That is some very good work, nine years well spent, 
what part of the world are you in ? 

Neil R 

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Re: [TANKS] Re: Offering my help machining part

[dwconn404]

That's very generous, Joshua, thank you. 
I'll keep it in mind :) 
  

- Original Message -

From: "Joshua Updyke"  
To: "rctankcombat"  
Sent: Monday, February 9, 2015 11:09:23 AM 
Subject: [TANKS] Re: Offering my help machining part 

I figured that I would publish answers to questions that people email me here. 
That way the next person can benefit from it too. 

I have access to three of these lasers. They are 80 watt machines. 
http://www.troteclaser.com/en-US/Laser-Machines/Mid-Size/Pages/Speedy300.aspx 

They can cut many materials, but not all. Acrylics and wood are the best 
options. The link has a list of lots of materials.  

3/8" thick acrylic is about the thickest I have ever seen done. I have seen 
some 3/8" wood done too. The max I have ever cut was 1/4" MDF and that turned 
out really nice. 

Lexan (PolyCarbonate) can not be cut with the laser. It makes a toxic gas when 
cut and honestly does not have clean edge cuts anyway.  

Hope that is helpful. 

Josh 


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[TANKS] Re: Offering my help machining part

[Joshua Updyke]

I figured that I would publish answers to questions that people email me 
here. That way the next person can benefit from it too.

I have access to three of these lasers. They are 80 watt machines.
http://www.troteclaser.com/en-US/Laser-Machines/Mid-Size/Pages/Speedy300.aspx

They can cut many materials, but not all. Acrylics and wood are the best 
options. The link has a list of lots of materials. 

3/8" thick acrylic is about the thickest I have ever seen done. I have seen 
some 3/8" wood done too. The max I have ever cut was 1/4" MDF and that 
turned out really nice.

Lexan (PolyCarbonate) can not be cut with the laser. It makes a toxic gas 
when cut and honestly does not have clean edge cuts anyway. 

Hope that is helpful.

Josh

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Re: [TANKS] Digest for rctankcombat@googlegroups.com - 10 updates in 3 topics

[Robert Currie]

WELL DONE! NICE WORK !!!

On Mon, Feb 9, 2015 at 1:35 AM,  wrote:

> rctankcombat@googlegroups.com
> 
>   Google
> Groups
> 
> 
>   Topic digest
>  View all topics
> 
>
>-  Finaly, an RC tank <#14b6db205e9ce34d_group_thread_0> - 6 Updates
>-  Offering my help machining part <#14b6db205e9ce34d_group_thread_1>
>- 1 Update
>-  New Track Idea <#14b6db205e9ce34d_group_thread_2> - 3 Updates
>
>   Finaly, an RC tank
> 
>   Jean-Maxime Cyr St-Pierre : Feb 08 09:15PM -0400
>
> I finally got something working,
> There it is my own Rc Combat Tank not finished but soon ready
>
> Main feature:
> rc
> -Full 1/6 scale
> -Aluminum Hull CNC cutted
> -Solidworks engenering
> -Tig and Mig welded
> -Casted plastic parts for the running gear with 3d printed models
> -Modular assembly
> -MPSS suspension from Field of Armor
> -M01 Motors 350w
> -C12C controller for now
> -Spyder Victor paintball with a 16inch. barrel to be on scale in length
>
> Don't know if I can considere in ''running on its own'' condition, but it
> can run in my house on one track with is own batery more fast then I tougth
> on 12v and it will run on 24V
>
>
> Thanks you very much all for this hobby. It's been now nine year that I'm
> looking foward to make a running tank and on the path I made the decision
> to be a welder in my working life due to this. I have learn how to
> machining and in the last year to master the 3d cad, 3d printing and
> plastic casting. It will be usefull for everything I will make and for the
> rest of my life.
>
> I wish I will meet some of you in battle!!
> https://www.youtube.com/watch?v=bADOEw1zbSg
>
> Please forget my bad English...!
>
>
> Jean-Maxime Cyr St-Pierre
>   Jean-Maxime Cyr St-Pierre : Feb 08 09:18PM -0400
>
> more picks!
>
>
> Jean-Maxime Cyr St-Pierre
>   "Chris. b" : Feb 08 05:49PM -0800
>
> very nice work! not far to go now, keep at it!
>
> Chris. b
>   Caleb Smith <3219ca...@gmail.com>: Feb 08 06:25PM -0800
>
> Good work! Is that a SU-76
>
> On Sunday, February 8, 2015 at 8:18:49 PM UTC-5, Jean-Maxime Cyr St-Pierre
> wrote:
>   "Doug Conn" : Feb 08 09:34PM -0500
>
> Beautiful work !
>
>
>
> From: rctankcombat@googlegroups.com [mailto:rctankcombat@googlegroups.com]
> On Behalf Of Jean-Maxime Cyr St-Pierre
> Sent: Sunday, February 8, 2015 8:19 PM
> To: rctankcombat@googlegroups.com
> Subject: [TANKS] Finaly, an RC tank
>
>
>
> more picks!
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Jean-Maxime Cyr St-Pierre
>
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>   srwh7...@gmail.com: Feb 08 07:41PM -0800
>
> Wow, great work.
>   Back to top <#14b6db205e9ce34d_digest_top>
>   Offering my help machining part
> 
>   Joshua Updyke : Feb 08 07:01PM -0800
>
> Hey guys. I am new to the tank building and right now I am focusing on
> designing a custom track system. Since the community has been nice enough
> to point me in the right direction of information and help me out, wanted
> to give back if I could. I am interested in building a tank of my own, but
> that is quite a big commitment and I have no idea where to start. So I
> thought I would dip my toes in to the water by offering to help other
> people. I am a mechanical engineer by trade and build medical robots. I
> also have access to 3 different machines shops, 3d Cad modeling software,
> simulation, photo-realistic rendering, circuit board design, and a lot of
> tools. I will list the several of the tools below that might be useful to
> you guys. I figure that me helping you guys build some part for your tanks
> would be a great way for me to learn about the process, and figure out if
> I
> want to build a tank of my own.
>
> So here is my offer. Send me a message with some details about what you
> need help with. If I can help I will let you know 

[TANKS] Re: Finaly, an RC tank

[TyngTech]

Jean-Maxime,

Very nice work.  I'd love to see details on the TTS components manufacture!

Steve Tyng


>

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Re: [TANKS] Finaly, an RC tank

[Frank Pittelli]

It's always nice to hear when someone uses the challenges of this hobby 
to improve their skills either personally or professionally.  Well done.


On 2/8/2015 8:15 PM, Jean-Maxime Cyr St-Pierre wrote:

Thanks you very much all for this hobby. It's been now nine year that
I'm looking forward to make a running tank and on the path I made the
decision to be a welder in my working life due to this. I have learn
how to machining and in the last year to master the 3d cad, 3d
printing and plastic casting. It will be useful for everything I
will make and for the rest of my life.


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Re: [TANKS] New Track Idea

[TyngTech]

Josh,

A TTS track (short for Tyng Track System) uses a continuous loop of 
treadmill or conveyor  belting as the main tension member.  The "tracks" 
are mating pads adhered to the inner and outer faces of the belt.  Guide 
horns are incorporated on the inner pads.  Guide horns engage the roads 
wheels to limit  side to side play.

First TTS being fabricated for T005 (friction 
drive): http://www.rctankcombat.com/order-of-battle/tanks/T005/Page4.html
First sprocket driven TTS on T028 (converted from friction to 
sprocket): http://www.rctankcombat.com/order-of-battle/tanks/T028/
First production TTS 
T040: http://www.rctankcombat.com/order-of-battle/tanks/T040/Page3.html
Current polymer TTS from TriPact: 
 http://www.rctankcombat.com/order-of-battle/tanks/T100/Page2.html

There are other TTS implementations, just look through the build threads.

Steve Tyng


On Saturday, February 7, 2015 at 10:48:00 PM UTC-5, Joshua Updyke wrote:
>
> Frank,
>
> Thank you for your comments. You really have a lot of good ideas. You 
> mention the TTS design. I am not familiar with that and I was wondering if 
> you could point me in the direction of some reading on that. I also liked 
> your suggestion of just making a well designed interlocking tread from the 
> beginning. The reason I liked using the roller chain is it added strength 
> to the track and allowed me to use very common drive sprockets. One idea I 
> toyed around with was removing the chain and building a pinned tread that 
> still meshed with roller chain sprockets. Do you think this is practical? 
> You mentioned a 'properly designed drive cog' in your post. I realize that 
> a roller chain sprocket is not designed for driving track, but what 
> differences are there between a roller chain sprocket and a drive cog. 
>
> Thanks for the input from everyone.
>
> josh
>
> On Saturday, February 7, 2015 at 9:57:26 AM UTC-5, Frank Pittelli wrote:
>>
>> Looks like a sweet ride Doug. 
>>
>> There's one important aspect about your track design that you failed to 
>> mention: the rigidity of the 90 degree angle between the chain and the 
>> tread.  If that angle is not held rigid over the life of the track, the 
>> probability of throwing a track goes up.  Attachment links significantly 
>> increase the rigidity and therefore the reliability of the track. 
>> Personally, I think that your attachment chain design is as good as a 
>> chain-based design can get.  End of evolution. 
>>
>> The performance of the TTS design is legendary and well-proven on the 
>> battlefield (which makes all other R/C tests look like kindergarten 
>> projects).  Will's and Doug's attachment chain designs are also 
>> seasoned.  Not as good as TTS, but definitely battlefield approved. 
>> Basically, the last category in track designs that hasn't been fully 
>> explored is self-linked treads. 
>>
>> If you're going with 3D printing for prototypes and injection molding 
>> for production, you might as well design an interlocking tread that can 
>> be pinned together just like the real thing.  When used with a properly 
>> designed drive cog and guide tooth, you would never throw a track. 
>> Moreover, a cleverly designed set of parts could be used to make a wide 
>> array of different tracks.  Single-tooth, double-tooth, offset tooth, 
>> narrow, medium and wide tracks could all be built using the same 
>> elemental parts.  If you combine the pioneering work done by Garnet for 
>> T011 with 3D printing and modern injection molding, I think the result 
>> could be successfully battle-tested and used on a wide-variety of 
>> vehicles. 
>>
>> Loic and FoA have pushed that frontier further along with their scale 
>> metal track links, but I don't think the evolution is done and a 
>> semi-scale version in plastic would be greatly appreciated in many 
>> different R/C worlds. 
>>
>> On 2/6/2015 11:14 PM, Doug Conn wrote: 
>> > Here’s the new tank I’ll test them on. The hull is mechanically 
>> > finished. I just need to wire it, add tracks, and try everything out. 
>>
>

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