Homebrew PCBs

Yes... thanks for the tip.
I concluded that if I did not find I perfect match there I would 
definitely find something close...or close enough.
My interest in learning how to make a gear from scratch is driven by a 
number of projects that
I thought I would to get into some day but I was missing the gears.
http://www.learnmorsecode.com/regen/coilwinder/coilwindervintage.gif

I will  post a soup to nuts home brew gear INSTRUCTABLE when I get to 
actually cut some gears
but I am not well enough to work with sharp tools right now.
I got sick two days before Christmas.
The bruise on my right hand in the pictures is from an IV needle.

On 01/07/2017 06:49 PM, Harvey Altstadter hrconsult@... 
[Homebrew_PCBs] wrote:
>
> Rob,
>
> Have you looked at the two ebay stores I posted a few days ago?
>
> Harvey
>
> On 1/7/2017 4:25 PM, Rob roomberg@... [Homebrew_PCBs] wrote:
>>
>> I ran into this very same issue.
>> I did not have any gear making tools here set up that could just 
>> knock out a metal gear and
>> slip onto the motor D shaft.
>> After week of searching the internet I concluded that there was not 
>> any instant source to replace
>> my plastic gears unless I wanted to pay $75 for a custom made gear.
>> http://www.learnmorsecode.com/laminator/slowmotor.jpg
>> So I resorted to RC car gear suppliers and bought a pile of nearly 
>> acceptable gears.
>> I say nearly because I will have to drill out the smaller shaft holes 
>> to fit the lamnator.
>>
>>  As far as designing gears being above your pay grade goes.....
>> We are pushing rollers in a laminator.
>> We don't care if we don't get it perfectly right.
>> Look up gear making on the web and you find guys making gears out of 
>> plywood
>> and guy making gears with hand tools.
>>
>>
>> On 01/07/2017 01:19 PM, Harvey Altstadter hrconsult@... 
>> [Homebrew_PCBs] wrote:
>>>
>>> Rob,
>>>
>>> Unfortunately, knowing the spacing of the gear teeth is only the 
>>> beginning of cutting gears. After I looked at the geargenerator 
>>> website, I realized that it had terms that were undefined, and as a 
>>> layman, I could not use that site. I found the definitions of the 
>>> terms in the Nomenclature section: https://en.wikipedia.org/wiki/Gear
>>>
>>> At that point, I decided that designing gears was above my pay 
>>> grade, and went back to searching for ready made metal gears. This 
>>> is less difficult, if you can find gear sets having the same 
>>> diameters and number of teeth as your original set. The gears don't 
>>> have to be identical to your original gears, they just have to fit 
>>> the space and mesh. The problem that I have encountered is that I 
>>> have found a gear set that almost meets that description, and it is 
>>> difficult, without physically trying the fit, to determine if there 
>>> is enough slop in the fit to allow them to mesh with the existing 
>>> shaft spacing.
>>>
>>> The reason that the diameters have to match the existing gears in 
>>> the HF laminator, is that the motor gear drives one of the roller 
>>> gears, which drives the other. This is a hard mount, with no 
>>> springs. This means that there is no adjustment available between 
>>> them. The motor position has some small degree of adjustability, but 
>>> if the roller gears don't mesh properly, the game is over. I am 
>>> still looking to find the time to determine whether the plastic 
>>> structure that supports the roller bearings can take temperatures 
>>> over 200�C for extended periods of time.
>>>
>>> Harvey
>>>
>>>
>>> On 1/7/2017 10:45 AM, Rob roomberg@... [Homebrew_PCBs] wrote:
>>>>
>>>> YES...better yet... IF YOU HAVE THE TECHNOLOGY
>>>> This geargenetator.com script only runs on-line
>>>> can NOT be stowed locally on your PC
>>>> AND
>>>> the reason I went to the trouble of documenting :
>>>> How to mark a gear to cut teeth ....any size... any number of teeth
>>>> http://www.learnmorsecode.com/gears/index.html
>>>>
>>>> was because some of us have really bad internet connections that 
>>>> will not be getting any better any time
>>>> soon so PDFs and bigger better faster complicated javascripts 
>>>> running server side calculations  and YOUTUBE videos are off limits 
>>>> to these guys.....
>>>> soooo
>>>> drop back and punt.... go old school an show how to to it with a 
>>>> $10 calculator and a pencil.
>>>>
>>>> I AM NOT a mathematician.
>>>> But a mathematician made a YOUTUBE video showing
>>>> SIN(DEG/2)2   read as: SIN of (degrees divided by 2) times 2
>>>> will yield a number that you multiply the circle radius and have 
>>>> the distance to mark on whatever you are cutting... 
>>>> metal..plastic....  and I thought it would be best to know this 
>>>> method and share it.
>>>>
>>>>
>>>> On 01/07/2017 11:48 AM, 'K5ESS' k5ess.nothdurft@... 
>>>> [Homebrew_PCBs] wrote:
>>>>>
>>>>> Better yet:
>>>>>
>>>>> http://geargenerator.com/#200,200,100,6,1,0,0,4,1,8,2,4,27,-90,0,0,16,4,4,27,-60,1,1,12,1,12,20,-60,2,0,60,5,12,20,0,0,0,2,-563
>>>>>
>>>>> Mike N.
>>>>>
>>>>> *From:* Homebrew_PCBs@yahoogroups.com 
>>>>> [mailto:Homebrew_PCBs@yahoogroups.com]
>>>>> *Sent:* Saturday, January 07, 2017 12:33 AM
>>>>> *To:* Homebrew PCBs
>>>>> *Subject:* [Homebrew_PCBs] How to mark a gear to cut teeth ....any 
>>>>> size
>>>>>
>>>>> How to mark a gear to cut teeth ....any size... any number of teeth
>>>>> http://www.learnmorsecode.com/gears/index.html
>>>>>
>>>>> ------------------------------------------------------------------------
>>>>>
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>>>>>
>>>>