Re: [Frameworks] EIKI slimline 16mm projector query

[graemehogg]

As I understand things, you'd have less torque on a larger diameter hub.

Think of a pencil and wrapping film on that, it would be like a gear, and 
easily wind the material with minimum effort.


A large hub, like a large gear, would need more effort to wind anything.

Anyway, physics of take up reels aside, the problem sounds almost 
certainly the TUP clutch assembly inside the machine. These routinely slip 
out on these machines/models.


Of course the single timing belt on the Eiki design means everything is 
connected to everything else so you'd be wise to get the service manual 
and learn how to lube every geared wheel, using correct lube in each case

and take apart and lube the cam tank.




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On Tue, 26 May 2020, Julian Antos wrote:


A bigger hub does help, but the heavy takeup reel is also taking up better
because takeup is designed to increase tension as the reel gets heavier. If
there is only adequate tension at the start using a heavy reel, you’ll
probably have less than you need by the end of the reel - especially if a
print is warped.

On Tue, May 26, 2020 at 7:17 AM Scott Dorsey  wrote:
  The heavy takeup reel isn't taking up better because it's heavy,
  it is taking
  up better because the diameter of the center hub is larger. 
  Just fix it.
  --scott
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Re: [Frameworks] EIKI slimline 16mm projector query

[Julian Antos]

A bigger hub does help, but the heavy takeup reel is also taking up better
because takeup is designed to increase tension as the reel gets heavier. If
there is only adequate tension at the start using a heavy reel, you’ll
probably have less than you need by the end of the reel - especially if a
print is warped.

On Tue, May 26, 2020 at 7:17 AM Scott Dorsey  wrote:

> The heavy takeup reel isn't taking up better because it's heavy, it is
> taking
> up better because the diameter of the center hub is larger.  Just fix it.
> --scott
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www.chicagofilmsociety.org 
773 827 8991 <(773)%20827-8991>
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Re: [Frameworks] EIKI slimline 16mm projector query

[Scott Dorsey]

The heavy takeup reel isn't taking up better because it's heavy, it is taking
up better because the diameter of the center hub is larger.  Just fix it.
--scott
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Re: [Frameworks] EIKI slimline 16mm projector query

[o...@thenowcorporation.com]

Oh I love those old slimlines! good luck, be well,
Owen



> On May 24, 2020, at 2:24 PM, Mark Street  wrote:
> 
> 
> Thanks, Tara.  Weird that a heavy take up reel would make it take up better!  
> But what we love about film is the counter intuitive magical part of it, 
> right?
> 
> Mark
> 
>> On Fri, May 15, 2020 at 12:12 PM Tara Nelson  wrote:
>> I have an Eiki with a similar issue. Using a heavy take-up reel (metal 
>> 1400') resolves the issue most of the time.
>> tara nelson
>> vsw/rochester
>> 
>>> On Fri, May 15, 2020 at 10:26 AM Scott Dorsey  wrote:
>>> In addition to the belt, there is a slip clutch that goes bad.  The belts 
>>> should be replaced every decade or so just pre-emptively, but in a pinch
>>> cleaning them with 409 (buyl cellosolve kitchen degreaser) will often help.
>>> If the slip clutch is slipping too much, take it apart, wash the parts 
>>> with 409, and put it back together.
>>> --scott
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>>> FrameWorks mailing list
>>> FrameWorks@jonasmekasfilms.com
>>> https://mailman-mail5.webfaction.com/listinfo/frameworks
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Re: [Frameworks] EIKI slimline 16mm projector query

[Mark Street]

Thanks, Tara.  Weird that a *heavy* take up reel would make it take up
better!  But what we love about film is the counter intuitive magical part
of it, right?

Mark

On Fri, May 15, 2020 at 12:12 PM Tara Nelson 
wrote:

> I have an Eiki with a similar issue. Using a heavy take-up reel (metal
> 1400') resolves the issue most of the time.
> tara nelson
> vsw/rochester
>
> On Fri, May 15, 2020 at 10:26 AM Scott Dorsey  wrote:
>
>> In addition to the belt, there is a slip clutch that goes bad.  The belts
>> should be replaced every decade or so just pre-emptively, but in a pinch
>> cleaning them with 409 (buyl cellosolve kitchen degreaser) will often
>> help.
>> If the slip clutch is slipping too much, take it apart, wash the parts
>> with 409, and put it back together.
>> --scott
>> ___
>> FrameWorks mailing list
>> FrameWorks@jonasmekasfilms.com
>> https://mailman-mail5.webfaction.com/listinfo/frameworks
>>
> ___
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Re: [Frameworks] EIKI slimline 16mm projector query

[Tara Nelson]

I have an Eiki with a similar issue. Using a heavy take-up reel (metal
1400') resolves the issue most of the time.
tara nelson
vsw/rochester

On Fri, May 15, 2020 at 10:26 AM Scott Dorsey  wrote:

> In addition to the belt, there is a slip clutch that goes bad.  The belts
> should be replaced every decade or so just pre-emptively, but in a pinch
> cleaning them with 409 (buyl cellosolve kitchen degreaser) will often help.
> If the slip clutch is slipping too much, take it apart, wash the parts
> with 409, and put it back together.
> --scott
> ___
> FrameWorks mailing list
> FrameWorks@jonasmekasfilms.com
> https://mailman-mail5.webfaction.com/listinfo/frameworks
>
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Re: [Frameworks] EIKI slimline 16mm projector query

[Scott Dorsey]

In addition to the belt, there is a slip clutch that goes bad.  The belts 
should be replaced every decade or so just pre-emptively, but in a pinch
cleaning them with 409 (buyl cellosolve kitchen degreaser) will often help.
If the slip clutch is slipping too much, take it apart, wash the parts 
with 409, and put it back together.
--scott
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Re: [Frameworks] EIKI slimline 16mm projector query

[FrameWorks Admin]

I just had an issue with a super-8 projector which is fully electronic, full of 
circuit boards. The motor would only run two seconds and it wouldn’t drive the 
projector. I was worried there is no way to repair this where I am in South 
Korea, with 40 students eager to watch the seven rolls they just developed. It 
turned out to be a simple matter of tightening two screws that connect the 
ventilator and belt pulley shaft to the motor shaft. Fixed in ten seconds! 
After a few days of worrying and calling experts…
Pip Chodorov


> On May 15, 2020, at 10:43 PM, Dominic Angerame  
> wrote:
> 
> No Problem Mark. I have repaired many Pagaents (they are not easy) except the 
> electronics. It is really just mechanical common sense to fix many of the 
> problems as long as you are able to open up the projector, most of them can 
> be fixed relatively easy.

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Re: [Frameworks] EIKI slimline 16mm projector query

[Dominic Angerame]

No Problem Mark. I have repaired many Pagaents (they are not easy) except the 
electronics. It is really just mechanical common sense to fix many of the 
problems as long as you are able to open up the projector, most of them can be 
fixed relatively easy.

d

> On May 15, 2020, at 6:41 AM, Mark Street  wrote:
> 
> THanks Hogge and Dominic!
> 
> 
> 
> On Fri, May 15, 2020 at 9:22 AM Dominic Angerame  > wrote:
> Sounds like a belt issue. Unplug the machine there should be a few screws to 
> open back. Look inside it will be obvious if belt is loose it should be 
> tight. It also could just be dirt so check for that. Ape city.com 
>  has manuals for many projectors and this may help show how 
> to remove back cover.
> 
> On Fri, May 15, 2020 at 5:36 AM Mark Street  > wrote:
> Hey All,
> The take up on this projector is working intermittently.  Sometimes it takes 
> up fine; sometimes it needs a little help at the beginning of the reel, 
> sometimes it doesn't work at all. I've never worked on projectors before.  
> How complicated is it to 'repair' it (assuming that is possible)?  I was told 
> it was a belt issue at one point; should I buy and install a new belt?  
> Tinker?  Any illumination much appreciated.
> 
> best,
> Mark
> 
> 
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Re: [Frameworks] EIKI slimline 16mm projector query

[Mark Street]

THanks Hogge and Dominic!



On Fri, May 15, 2020 at 9:22 AM Dominic Angerame 
wrote:

> Sounds like a belt issue. Unplug the machine there should be a few screws
> to open back. Look inside it will be obvious if belt is loose it should be
> tight. It also could just be dirt so check for that. Ape city.com has
> manuals for many projectors and this may help show how to remove back cover.
>
> On Fri, May 15, 2020 at 5:36 AM Mark Street  wrote:
>
>> Hey All,
>> The take up on this projector is working intermittently.  Sometimes it
>> takes up fine; sometimes it needs a little help at the beginning of the
>> reel, sometimes it doesn't work at all. I've never worked on projectors
>> before.  How complicated is it to 'repair' it (assuming that is possible)?
>> I was told it was a belt issue at one point; should I buy and install a new
>> belt?  Tinker?  Any illumination much appreciated.
>>
>> best,
>> Mark
>>
>>
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>>
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Re: [Frameworks] EIKI slimline 16mm projector query

[Dominic Angerame]

Sounds like a belt issue. Unplug the machine there should be a few screws
to open back. Look inside it will be obvious if belt is loose it should be
tight. It also could just be dirt so check for that. Ape city.com has
manuals for many projectors and this may help show how to remove back cover.

On Fri, May 15, 2020 at 5:36 AM Mark Street  wrote:

> Hey All,
> The take up on this projector is working intermittently.  Sometimes it
> takes up fine; sometimes it needs a little help at the beginning of the
> reel, sometimes it doesn't work at all. I've never worked on projectors
> before.  How complicated is it to 'repair' it (assuming that is possible)?
> I was told it was a belt issue at one point; should I buy and install a new
> belt?  Tinker?  Any illumination much appreciated.
>
> best,
> Mark
>
>
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[Frameworks] EIKI slimline 16mm projector query

[Mark Street]

Hey All,
The take up on this projector is working intermittently.  Sometimes it
takes up fine; sometimes it needs a little help at the beginning of the
reel, sometimes it doesn't work at all. I've never worked on projectors
before.  How complicated is it to 'repair' it (assuming that is possible)?
I was told it was a belt issue at one point; should I buy and install a new
belt?  Tinker?  Any illumination much appreciated.

best,
Mark
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