[GreenKeys] M28 ASR Gear

Russ Miller wa3frp at gmail.com
Fri Mar 13 19:27:11 EDT 2020


Bill,

I went though this exercise about 15 years ago and found that this gear is made from unobtainium.  I did get the specs on this gear and visit a couple of local machine shops.  Back then, I remember that the price was dramatically lower if more that one gear was being machined.

Good luck in your search for a solution.

Russ WA3FRP 

Sent from my iPhone

> On Mar 13, 2020, at 5:32 PM, Sam Stinson <samstinson at gmail.com> wrote:
> 
> If you can get it 3D printed in Nylon it will be extremely strong, I have no doubts that it would hold up. I have printed small parts in nylon, you cannot easily damage them even with pliers and a hammer. 
> 
>> On Mar 13, 2020, at 14:21, William Wuttke <wcwuttke at att.net> wrote:
>> 
>> All,
>> 
>> I sent this out awhile ago in hopes that someone had the p/n 195157 gear. No one had one. I checked a few places to see if I could get the gear made. The lowest price I found was $425.00. That’s more than I paid for the whole machine.
>> 
>> 1. Does anyone have a ‘spare’ 3-speed modification kit they’re willing to part with?
>> 2. Does anyone know of a place that can make the gear cheaper?
>> 
>> My brother suggested that I could 3D print it, but I don’t think it would hold up.
>> 
>> So far, the original gear is holding up without any further damage.
>> 
>> (Luckily, I have a backup set of 60 wpm gears in case of catastrophic failure.)
>> 
>> Thanks,
>> Bill
>> KE3BK
>> 
>>> 
>>> All,
>>> 
>>> I’m in the process of cleaning, lubricating, repairing, etc., my newfound M28 ASR and found a gear that is still operating, but I don’t know for how long. It has a couple of damaged teeth. Does anyone have a p/n 195157, gear 49T, gray nylon or know of any place that makes custom gears? Paul Cembura doesn’t have any in stock.
>>> 
>>> Thanks,
>>> Bill
>>> KE3BK
>>> <IMG_0741 3.jpeg>
>>> 
>> 
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