[GreenKeys] TP180502 Head, Print Hammer

[Ron Kolarik]

> The return list is getting quite long so copying to the list as well.
> 
> There are some good castable urethanes that may be usable
> as George has pointed out. Here's some links that may help
> but we need to know which one has the correct hardness.
> 
> http://www.bjbenterprises.com
> http://www.westernroller.com/
> http://masterpiecemodels.com/
> 
> Ron
> 
> 
> ----- Original Message ----- 
> Sent: Thursday, April 12, 2012 11:57 AM
> Subject: Re: TP180502 Head, Print Hammer
> 
> 
>> No Ron,
>> 
>> As far as I am aware there are no shore strength specs available.
>> The only properly made print hammer was done in Canada
>> but I no longer can find the example Dave sent me.
>> I put it in such a safe place... Have you ever done that?
>> 
>> George is probably right in that there are modern materials that might  
>> work.
>> I am hoping to get a good recommendation from Mercer with the sample
>> that Wayne Durkee sent me.
>> 
>> Don
>> 
>> 
>> On 12 Apr 2012, at 1:39 AM, Ron Kolarik wrote:
>> 
>> Don do you have any more specs on the print hammer?  I'm looking for
>> a Shore strength spec if you have it.  There may be a simple solution  
>> and
>> inexpensive to boot, I just need to find the right material strength.
>> 
>> Ron
>> 
>> 
>> ----- Original Message ----- From: "DR HOUSE" <k9tty at dls.net>
>> To: "Ron Kolarik" <ronkolarik801 at gmail.com>
>> Cc: <greenkeys at mailman.qth.net>
>> Sent: Wednesday, April 11, 2012 4:28 PM
>> Subject: Re: News from Mercer Gasket & Shim
>> 
>> 
>>> Hi Ron,
>>> The head needs to be a rubber product as it slaps the typewheel  
>>> pretty  hard.
>>> I will review this with Mercer if they are interested in helping.
>>> As far as Delrin is concerned after this project I may ask them to   
>>> look into
>>> making print hammer heads for M28, 35, and 37 Reperforators.
>>> Don
>>> On 11 Apr 2012, at 3:37 PM, Ron Kolarik wrote:
>>> Don, I'm not familiar with those Teletypes. Can the print hammer head
>>> be made of some hard material like Delrin or must it have some  
>>> cushoning
>>> properties??
>>> Ron
>>> ----- Original Message ----- From: "DR HOUSE" <k9tty at dls.net>
>>> Sent: Wednesday, April 11, 2012 11:41 AM
>>> Subject: Fwd: News from Mercer Gasket & Shim
>>>> TTY GUYS
>>>> I have sent this request to Mercer Gasket and Shim.  I would be    
>>>> interested in a SWAG of how many of you would like several of  
>>>> these   180502 Print Hammer Heads for Models 32, 33, and 38  
>>>> Teletype   machines... Don
>>>> ---------------------------------------
>>>
>>