[modeleng] Re: Flat bar bender?

  • From: <bede@xxxxxxx>
  • To: "modeleng@xxxxxxxxxxxxx" <modeleng@xxxxxxxxxxxxx>
  • Date: Mon, 06 Apr 2009 16:28:30 -0400

Hi Cliff,

Thanks for this, yes, I've had this happen in the past- seems it also
has to do with how tight the groove in the sleeper is.  I use two blades
in a table saw and fine tune the width by adding layers of paper or thin
plastic sheet between the blades to increase the width of the cut.  I
plan to use pressure-treated (preserved) pine, 2" x 2" x 9" (for
3.5" gauge).

Bede

On 4/6/2009, "Clif Walker" <clif.gwr@xxxxxxxxxxxx> wrote:

>Hi Bede,
>
>If you are thinking of cutting grooves in the Ties ( Sleepers ) to us Brits, 
>may I point out a problem that can happen when you force the bar in.
>From where you have cut the groove, the wood on the end of the tie sheers 
>off along the grain leaving your rail without support.
>It all depends on the size of the tie and type of wood.
>
>Regards
>
>Clif
>----- Original Message ----- 
>From: <bede@xxxxxxx>
>To: <modeleng@xxxxxxxxxxxxx>
>Sent: Sunday, April 05, 2009 6:54 PM
>Subject: [modeleng] Re: Flat bar bender?
>
>
>> Hi Eric,
>>
>> Sounds like you have a solid roadbed!  I plan to use 1.25" bar and have
>> 75 in the groove in the tie, leaving the riding surface of the rail
>> 5" above the surface of the tie.  I guess I could go with 1" bar and
>> only have .25" of the bar sticking up above the surface of the rail...
>>
>> Thanks for your input,
>> Bede
>>
>> On 3/31/2009, "Eric Walker" <eric@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>>
>>>I was asking because my track is similar, 12x30mm mild steel laid in 
>>>grooves
>>>in concrete sleepers. Of course the gauge is 7.25"but as the sleepers are 
>>>in
>>>the ground the rails are just sprung in, no bending required. Why do you
>>>need the rails to be 1.25" high?
>>>
>>>E.W.
>>>----- Original Message ----- 
>>>From: <bede@xxxxxxx>
>>>To: <modeleng@xxxxxxxxxxxxx>
>>>Sent: Tuesday, March 31, 2009 12:21 AM
>>>Subject: [modeleng] Re: Flat bar bender?
>>>
>>>
>>>>
>>>> Hello, Eric,
>>>>
>>>> It'll be 3.5" gauge, with a narrow gauge (2' gauge) 0-4-0 loco running
>>>> on it, at least for now (that's all we got!)
>>>>
>>>> Bede
>>>>
>>>> On 3/30/2009, "Eric Walker" <eric@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>>>>
>>>>>What gauge are you planning bede?
>>>>>
>>>>>E.W.
>>>>>----- Original Message ----- 
>>>>>From: <bede@xxxxxxx>
>>>>>To: <modeleng@xxxxxxxxxxxxx>
>>>>>Sent: Monday, March 30, 2009 2:03 AM
>>>>>Subject: [modeleng] Flat bar bender?
>>>>>
>>>>>
>>>>>>
>>>>>> I'm planning a simple end-to-end line here in NY and am planning to 
>>>>>> use
>>>>>> the "groovy track" method - flat bar (3/8" x 1.5") in slotted
>>>>>> ties/sleepers sort of like this:
>>>>>>
>>>>>> http://www.discoverlivesteam.com/magazine/128/
>>>>>>
>>>>>> We've made up a few sections of straight which is easy enough, but I'd
>>>>>> really like to try to pre-curve flat bar for the curves.  Does anyone
>>>>>> have any experience using a flat bar bender to make curves?  One model
>>>>>> I've seen is a Grizzly:
>>>>>>
>>>>>> http://grizzly.com/products/Compact-Bender-System-Floor-Model/H3184
>>>>>>
>>>>>> It seems simple and affordable, if anyone has any comparable
>>>>>> alternatives, suggestions, or experience using one of these benders to
>>>>>> make curves, I'd be grateful for any advice.
>>>>>>
>>>>>> Thanks,
>>>>>> Bede in drizzly Brooklyn.
>>>>>> MODEL ENGINEERING DISCUSSION LIST.
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>>>>>>
>>>>>
>>>>>
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