Re: [TANKS] Re: Wheels and Sprockets

2009-12-16 Thread Clark Ward Jr
Heh, I waswondering if I'd missed an email exchange or two :)

-- 
Clark in Georgia

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Re: [TANKS] Re: Wheels and Sprockets

2009-12-15 Thread Chrysanthos Kanellopoulos
Sorry people, wrong address!
- Original Message - 
From: "Chrysanthos Kanellopoulos" 
To: 
Sent: Wednesday, December 16, 2009 7:03 AM
Subject: Re: [TANKS] Re: Wheels and Sprockets


> Cnogratulations on the Iskander book Glen!
>
> You know about the MArfa lights, last summer I was in one restaurant, up 
> on
> a neighboring village in the mountain. It's nighttime.  The landlord  is
> nervous and watches the mountains across with his binoculars. There is one
> or two lights moving. THat's no weird except he - and other locals- tells 
> me
> there is no mountain there! The  lights are floating above the mountain 
> line
> and this keeps happening for about an hour.  We all see the lights. The
> others are making fun of him.  They know nothing about UFOs. (it is not a
> technological advanced society with technological myths). Noone has an
> explanation and they didn't care much as long as no one is hunting
> illegally.  They were only concerned that someone is hunting rabbits
> illegally at night with a flood light and "a car battery on his back".
> That's all they thought, only the lights are dangling above the mountain
> top.
>
> Chrys
>
>
>
> - Original Message - 
> From: "Clark Ward Jr" 
> To: 
> Sent: Wednesday, December 16, 2009 12:59 AM
> Subject: Re: [TANKS] Re: Wheels and Sprockets
>
>
>>I hadn't thought of the forstner bit/bearing trick... I like it :)
>>
>> Thanks to everyone who has chimed in!
>>
>> -- 
>> Clark in Georgia
>>
>> -- 
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>>
>
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Re: [TANKS] Re: Wheels and Sprockets

2009-12-15 Thread Chrysanthos Kanellopoulos
Cnogratulations on the Iskander book Glen!

You know about the MArfa lights, last summer I was in one restaurant, up on 
a neighboring village in the mountain. It's nighttime.  The landlord  is 
nervous and watches the mountains across with his binoculars. There is one 
or two lights moving. THat's no weird except he - and other locals- tells me 
there is no mountain there! The  lights are floating above the mountain line 
and this keeps happening for about an hour.  We all see the lights. The 
others are making fun of him.  They know nothing about UFOs. (it is not a 
technological advanced society with technological myths). Noone has an 
explanation and they didn't care much as long as no one is hunting 
illegally.  They were only concerned that someone is hunting rabbits 
illegally at night with a flood light and "a car battery on his back". 
That's all they thought, only the lights are dangling above the mountain 
top.

Chrys



- Original Message - 
From: "Clark Ward Jr" 
To: 
Sent: Wednesday, December 16, 2009 12:59 AM
Subject: Re: [TANKS] Re: Wheels and Sprockets


>I hadn't thought of the forstner bit/bearing trick... I like it :)
>
> Thanks to everyone who has chimed in!
>
> -- 
> Clark in Georgia
>
> -- 
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> 

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Re: [TANKS] Re: Wheels and Sprockets

2009-12-15 Thread Clark Ward Jr
I hadn't thought of the forstner bit/bearing trick... I like it :)

Thanks to everyone who has chimed in!

-- 
Clark in Georgia

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RE: [TANKS] Re: Wheels and Sprockets

2009-12-15 Thread Ben Holko
exactly, typically in hardware stores they are there for people who need to 
drill holes in cupboard doors for euro style hinges (32mm from memory)

Ben



From: rctankcombat@googlegroups.com [rctankcom...@googlegroups.com] on behalf 
of Thomas Lum [t...@mac.com]
Sent: Wednesday, December 16, 2009 7:50 AM
To: rctankcombat@googlegroups.com
Subject: Re: [TANKS] Re: Wheels and Sprockets

They are also good if you want a flat bottom (with just a little indent in the 
center) in the piece you are drilling and don't want the hole to go all the way 
through.

On Dec 15, 2009, at 3:46 PM, Doug Conn wrote:

>>> for really precise holes in plywood get yourself a nice Forstner bit set
>
> I see those in the hardware store and I always wonder what they were for.
> Just another useful tidbit of knowledge gleaned from this group !
>
>   - Doug
>
> -Original Message-
> From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com]
> On Behalf Of Steve Tyng
> Sent: Tuesday, December 15, 2009 3:34 PM
> To: R/C Tank Combat
> Subject: [TANKS] Re: Wheels and Sprockets
>
> I concur, a power miter saw is a good way to make wheels (and somewhat
> safer).  The road wheels on T047 (http://rctankcombat.com/tanks/T047/)
> were made this way.  The Cromwell's turret rotate drive and elevate
> wheels were also cut on the miter-saw (http://rctankcombat.com/tanks/
> T040/13Cromwell038-large.jpg,
> http://rctankcombat.com/tanks/T040/13Cromwell036-large.jpg).
>
> Hint: for really precise wheels bore the center bearing hole first and
> use the actual bearings and shafting you will use in the tank to build
> your rotate jig.  Another hint: for really precise holes in plywood
> get yourself a nice Forstner bit set.  Don't waste your time with
> twist or spade bits.
>
> Steve Tyng
>
>
> On Dec 14, 6:09 pm, neroc  wrote:
>> Clark my good man , I found the best way of making plywood wheels was
>> with a chop sawhttp://www.rctankcombat.com/tanks/T051/22-large.jpg
>> I bolted the work piece down securely with a large nut and rotated the
>> wheel taking off smaller and smaller `chunks` . The foto doesn’t show
>> a wheel as such but the principle is the same .
>> I don’t like the idea of wheel making with a table saw , control is
>> vital .
>>
>> Neil R
>>
>> On Dec 13, 4:26 pm, Clark Ward Jr  wrote:
>>
>>> You guys who cut sprockets on your bandsaws... is there a
>>> sprocket-drawing-page online that'll do the mathematical heavy lifting
>>> and draw me a pattern?
>>
>>> And for the many fellows who've cut roadwheels on their tablesaws with
>>> a jig: how do you deal with avoiding kickback of the little pieces
>>> that get cut off?
>>
>>> Many thanks! :)
>>
>>> --
>>> Clark in Georgia
>>
>>
>
> --
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Re: [TANKS] Re: Wheels and Sprockets

2009-12-15 Thread Thomas Lum
They are also good if you want a flat bottom (with just a little indent in the 
center) in the piece you are drilling and don't want the hole to go all the way 
through. 
 
On Dec 15, 2009, at 3:46 PM, Doug Conn wrote:

>>> for really precise holes in plywood get yourself a nice Forstner bit set
> 
> I see those in the hardware store and I always wonder what they were for.
> Just another useful tidbit of knowledge gleaned from this group !
> 
>   - Doug
> 
> -Original Message-
> From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com]
> On Behalf Of Steve Tyng
> Sent: Tuesday, December 15, 2009 3:34 PM
> To: R/C Tank Combat
> Subject: [TANKS] Re: Wheels and Sprockets
> 
> I concur, a power miter saw is a good way to make wheels (and somewhat
> safer).  The road wheels on T047 (http://rctankcombat.com/tanks/T047/)
> were made this way.  The Cromwell's turret rotate drive and elevate
> wheels were also cut on the miter-saw (http://rctankcombat.com/tanks/
> T040/13Cromwell038-large.jpg,
> http://rctankcombat.com/tanks/T040/13Cromwell036-large.jpg).
> 
> Hint: for really precise wheels bore the center bearing hole first and
> use the actual bearings and shafting you will use in the tank to build
> your rotate jig.  Another hint: for really precise holes in plywood
> get yourself a nice Forstner bit set.  Don't waste your time with
> twist or spade bits.
> 
> Steve Tyng
> 
> 
> On Dec 14, 6:09 pm, neroc  wrote:
>> Clark my good man , I found the best way of making plywood wheels was
>> with a chop sawhttp://www.rctankcombat.com/tanks/T051/22-large.jpg
>> I bolted the work piece down securely with a large nut and rotated the
>> wheel taking off smaller and smaller `chunks` . The foto doesn’t show
>> a wheel as such but the principle is the same .
>> I don’t like the idea of wheel making with a table saw , control is
>> vital .
>> 
>> Neil R
>> 
>> On Dec 13, 4:26 pm, Clark Ward Jr  wrote:
>> 
>>> You guys who cut sprockets on your bandsaws... is there a
>>> sprocket-drawing-page online that'll do the mathematical heavy lifting
>>> and draw me a pattern?
>> 
>>> And for the many fellows who've cut roadwheels on their tablesaws with
>>> a jig: how do you deal with avoiding kickback of the little pieces
>>> that get cut off?
>> 
>>> Many thanks! :)
>> 
>>> --
>>> Clark in Georgia
>> 
>> 
> 
> -- 
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RE: [TANKS] Re: Wheels and Sprockets

2009-12-15 Thread Doug Conn
>> for really precise holes in plywood get yourself a nice Forstner bit set

I see those in the hardware store and I always wonder what they were for.
Just another useful tidbit of knowledge gleaned from this group !

- Doug

-Original Message-
From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com]
On Behalf Of Steve Tyng
Sent: Tuesday, December 15, 2009 3:34 PM
To: R/C Tank Combat
Subject: [TANKS] Re: Wheels and Sprockets

I concur, a power miter saw is a good way to make wheels (and somewhat
safer).  The road wheels on T047 (http://rctankcombat.com/tanks/T047/)
were made this way.  The Cromwell's turret rotate drive and elevate
wheels were also cut on the miter-saw (http://rctankcombat.com/tanks/
T040/13Cromwell038-large.jpg,
http://rctankcombat.com/tanks/T040/13Cromwell036-large.jpg).

Hint: for really precise wheels bore the center bearing hole first and
use the actual bearings and shafting you will use in the tank to build
your rotate jig.  Another hint: for really precise holes in plywood
get yourself a nice Forstner bit set.  Don't waste your time with
twist or spade bits.

Steve Tyng


On Dec 14, 6:09 pm, neroc  wrote:
> Clark my good man , I found the best way of making plywood wheels was
> with a chop sawhttp://www.rctankcombat.com/tanks/T051/22-large.jpg
> I bolted the work piece down securely with a large nut and rotated the
> wheel taking off smaller and smaller `chunks` . The foto doesn’t show
> a wheel as such but the principle is the same .
> I don’t like the idea of wheel making with a table saw , control is
> vital .
>
> Neil R
>
> On Dec 13, 4:26 pm, Clark Ward Jr  wrote:
>
> > You guys who cut sprockets on your bandsaws... is there a
> > sprocket-drawing-page online that'll do the mathematical heavy lifting
> > and draw me a pattern?
>
> > And for the many fellows who've cut roadwheels on their tablesaws with
> > a jig: how do you deal with avoiding kickback of the little pieces
> > that get cut off?
>
> > Many thanks! :)
>
> > --
> > Clark in Georgia
>
>

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[TANKS] Re: Wheels and Sprockets

2009-12-15 Thread Steve Tyng
I concur, a power miter saw is a good way to make wheels (and somewhat
safer).  The road wheels on T047 (http://rctankcombat.com/tanks/T047/)
were made this way.  The Cromwell's turret rotate drive and elevate
wheels were also cut on the miter-saw (http://rctankcombat.com/tanks/
T040/13Cromwell038-large.jpg, 
http://rctankcombat.com/tanks/T040/13Cromwell036-large.jpg).

Hint: for really precise wheels bore the center bearing hole first and
use the actual bearings and shafting you will use in the tank to build
your rotate jig.  Another hint: for really precise holes in plywood
get yourself a nice Forstner bit set.  Don't waste your time with
twist or spade bits.

Steve Tyng


On Dec 14, 6:09 pm, neroc  wrote:
> Clark my good man , I found the best way of making plywood wheels was
> with a chop sawhttp://www.rctankcombat.com/tanks/T051/22-large.jpg
> I bolted the work piece down securely with a large nut and rotated the
> wheel taking off smaller and smaller `chunks` . The foto doesn’t show
> a wheel as such but the principle is the same .
> I don’t like the idea of wheel making with a table saw , control is
> vital .
>
> Neil R
>
> On Dec 13, 4:26 pm, Clark Ward Jr  wrote:
>
> > You guys who cut sprockets on your bandsaws... is there a
> > sprocket-drawing-page online that'll do the mathematical heavy lifting
> > and draw me a pattern?
>
> > And for the many fellows who've cut roadwheels on their tablesaws with
> > a jig: how do you deal with avoiding kickback of the little pieces
> > that get cut off?
>
> > Many thanks! :)
>
> > --
> > Clark in Georgia
>
>

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RE: [TANKS] Re: Wheels and Sprockets

2009-12-15 Thread Ben Holko
I tried to trim down some wheels on a table router about 3 weeks ago, cutup my 
finger and nearly took the top off. I wont be trying that again


From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On 
Behalf Of Derek Engelhaupt
Sent: Tuesday, December 15, 2009 3:42 PM
To: rctankcombat@googlegroups.com
Subject: Re: [TANKS] Re: Wheels and Sprockets

I tried to use my router to get round wheels, but I had issues.  I did use the 
router to round the
corners of the wheels once they were cut out using the table saw.  The table 
saw method was
much easier than I had imagined once I built a jig and clamped it to the saw.  
I did round the
wheels as much as possible by making straight cuts near the traced pattern 
lines before cutting
them on the tablesaw.  Just because I couldn't get the router method to work, 
doesn't mean it's
not possible.  I just wasn't possible for me to do it.  ;)

Derek
T065
On Mon, Dec 14, 2009 at 8:36 PM, Gregory Pwneror 
mailto:sockles...@gmail.com>> wrote:
Why don't you just cut the basic shape and use a router? I believe that's what 
Marc did for his sons tank.

-Gregory

On Tue, Dec 15, 2009 at 2:43 PM, Clark Ward Jr 
mailto:ki4...@gmail.com>> wrote:
Good master Neil, I do believe that I have such a chop saw in my shop.
 Why it hadn't occurred to me to use it for wheels is a mystery.  I
know what I'll be playing with when I'm off work (paid time off,
even!)  on the 24th :)  Mayhap even over this weekend!

--
Clark in Georgia

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Re: [TANKS] Re: Wheels and Sprockets

2009-12-14 Thread Derek Engelhaupt
I tried to use my router to get round wheels, but I had issues.  I did use
the router to round the
corners of the wheels once they were cut out using the table saw.  The table
saw method was
much easier than I had imagined once I built a jig and clamped it to the
saw.  I did round the
wheels as much as possible by making straight cuts near the traced pattern
lines before cutting
them on the tablesaw.  Just because I couldn't get the router method to
work, doesn't mean it's
not possible.  I just wasn't possible for me to do it.  ;)

Derek
T065

On Mon, Dec 14, 2009 at 8:36 PM, Gregory Pwneror wrote:

> Why don't you just cut the basic shape and use a router? I believe that's
> what Marc did for his sons tank.
>
> -Gregory
>
>
> On Tue, Dec 15, 2009 at 2:43 PM, Clark Ward Jr  wrote:
>
>> Good master Neil, I do believe that I have such a chop saw in my shop.
>>  Why it hadn't occurred to me to use it for wheels is a mystery.  I
>> know what I'll be playing with when I'm off work (paid time off,
>> even!)  on the 24th :)  Mayhap even over this weekend!
>>
>> --
>> Clark in Georgia
>>
>> --
>> You are currently subscribed to the "R/C Tank Combat" group.
>> To post a message, send email to rctankcombat@googlegroups.com
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>> Visit the group at http://groups.google.com/group/rctankcombat
>>
>
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Re: [TANKS] Re: Wheels and Sprockets

2009-12-14 Thread Gregory Pwneror
Why don't you just cut the basic shape and use a router? I believe that's
what Marc did for his sons tank.

-Gregory

On Tue, Dec 15, 2009 at 2:43 PM, Clark Ward Jr  wrote:

> Good master Neil, I do believe that I have such a chop saw in my shop.
>  Why it hadn't occurred to me to use it for wheels is a mystery.  I
> know what I'll be playing with when I'm off work (paid time off,
> even!)  on the 24th :)  Mayhap even over this weekend!
>
> --
> Clark in Georgia
>
> --
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Re: [TANKS] Re: Wheels and Sprockets

2009-12-14 Thread Clark Ward Jr
Good master Neil, I do believe that I have such a chop saw in my shop.
 Why it hadn't occurred to me to use it for wheels is a mystery.  I
know what I'll be playing with when I'm off work (paid time off,
even!)  on the 24th :)  Mayhap even over this weekend!

-- 
Clark in Georgia

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[TANKS] Re: Wheels and Sprockets

2009-12-14 Thread neroc
Clark my good man , I found the best way of making plywood wheels was
with a chop saw
http://www.rctankcombat.com/tanks/T051/22-large.jpg
I bolted the work piece down securely with a large nut and rotated the
wheel taking off smaller and smaller `chunks` . The foto doesn’t show
a wheel as such but the principle is the same .
I don’t like the idea of wheel making with a table saw , control is
vital .

Neil R



On Dec 13, 4:26 pm, Clark Ward Jr  wrote:
> You guys who cut sprockets on your bandsaws... is there a
> sprocket-drawing-page online that'll do the mathematical heavy lifting
> and draw me a pattern?
>
> And for the many fellows who've cut roadwheels on their tablesaws with
> a jig: how do you deal with avoiding kickback of the little pieces
> that get cut off?
>
> Many thanks! :)
>
> --
> Clark in Georgia

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[TANKS] Re: Wheels and Sprockets

2009-12-14 Thread callum.king.underw...@googlemail.com
Little bits that get cut off: have small piece of tape to hand and
once you've cut abit you stick tape on and it takes some of force when
it gets thrown out. Wont hold all the time but shouldnt come out too
quick. Masking tape also seems to work for cutting plastics like PVC.
We've found in school workshop sometimes blades get warm enough to
melt plastic as you go along but when you tape up along where your
cutting it doesnt do it as much unless your trying to melt it together
again.

On 14 Dec, 16:12, Fred Thomson  wrote:
> Hi Clark,
>
>  I bought a set from Canadian Tire on sale for about 90$ Cdn. I set my
> drill press to 1800 rpm and I cut 1" marine grade ply without a
> problem. Just take it slow. I've probably cut in the neighbourhood of
> 40 wheels at 4 1/2 inches and the holesaw is just as sharp as when I
> bought it.
>
> Cheers,
> Fred

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[TANKS] Re: Wheels and Sprockets

2009-12-14 Thread Fred Thomson
Hi Clark,

 I bought a set from Canadian Tire on sale for about 90$ Cdn. I set my
drill press to 1800 rpm and I cut 1" marine grade ply without a
problem. Just take it slow. I've probably cut in the neighbourhood of
40 wheels at 4 1/2 inches and the holesaw is just as sharp as when I
bought it.

Cheers,
Fred

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Re: [TANKS] Re: Wheels and Sprockets

2009-12-13 Thread Clark Ward Jr
Hi Fred,
  Thanks for the calculator!  That'll make life some easier :)

 I tried drilling with a holesaw, but I think the set I have is cheap
and doesn't cut well.  I had it going on 3/4" ply on my drill press at
990RPM and it was barely making a dent in the wood.  Any
recommendations on a good set?

-- 
Clark in Georgia

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[TANKS] Re: Wheels and Sprockets

2009-12-13 Thread Fred Thomson
And here's the on-line gear template generator I forgot to add to the
last post.

http://woodgears.ca/gear_cutting/template.html

Cheers,
Fred

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[TANKS] Re: Wheels and Sprockets

2009-12-13 Thread Fred Thomson
Hey Clark...

 I've found a different solution. Four and a half inch hole saw. The
plug you take out becomes your wheel, complete with a 1/4" pilot hole
in the center. Add a half inch of rubber and voila, and round five
inch wheel. Having bought a hole saw kit, I can cut any wheel plug
from 1/2" up to 6". It's easy to do on the drill press and the best
part; They're r-o-u-n-d. :-)

Cheers,
Fred

On Dec 13, 9:26 am, Clark Ward Jr  wrote:
> You guys who cut sprockets on your bandsaws... is there a
> sprocket-drawing-page online that'll do the mathematical heavy lifting
> and draw me a pattern?
>
> And for the many fellows who've cut roadwheels on their tablesaws with
> a jig: how do you deal with avoiding kickback of the little pieces
> that get cut off?
>
> Many thanks! :)
>
> --
> Clark in Georgia

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