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Topic: Plastic spindle for a Beaulieu 708EL take-up reel anyone?
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Andrew Woodcock
Film God
Posts: 7477
From: Manchester Uk
Registered: Aug 2012
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posted September 10, 2014 06:23 PM
The simple solution type should be ready in a month, latest hopefully, fingers crossed. I am hoping my old engineering training centre (which I was surprised is still going), will manufacture these by their current crop of second year company sponsored apprentices.
These are a very easy project for someone who has been turning for over a year so the standard of workmanship I expect will be excellent hopefully. The workshop has now been in existence for 48 years and I served there for my first year off site basic training in 1982/83. Back then you studied all aspects of Turning, Milling, Welding,Brazing,Soldering, Fitting, Sheet Metal Work & Electrical Engineering for one year. You then went on to specialize in whatever your company wanted from you before then returning to "The Big House" ready for action! Ha ha.
CNC Machines were just about present back then albeit that they were in their infancy including the old punch tape type just like the Eumig factory used in that same era!
[ September 12, 2014, 05:21 AM: Message edited by: Andrew Woodcock ]
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"C'mon Baggy..Get with the beat"
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Andrew Woodcock
Film God
Posts: 7477
From: Manchester Uk
Registered: Aug 2012
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posted October 21, 2014 05:26 AM
coming soon Maurice, I promise! ![[Wink]](wink.gif) You are quite correct about there not being a great deal of room to thread when mounting the very largest of spools onto these machines, however what I have found is if you have the threading mechanism already running, with practice and the right shaped cut on the edge of the film, even just "offering" the film to the slot grabs the film leader into position and this soon becomes an easy way round threading when using the larger spools I have found Maurice.
For the Disney features, I prefer to mount them to the 1800ft Beaulieu reel size giving you plenty of room to thread.
Also to gain an even better chance of a 100% perfect top and bottom loop whilst threading I have found that switching to 18fps on these machines really helps, although having said all of that, they generally do thread well and reliably no matter what technique you use so long as you cut your leaders with a chamfered 45 degree cutter rather than the bevelled edge style cut prefered by Elmo machines etc.
[ October 21, 2014, 04:29 PM: Message edited by: Andrew Woodcock ]
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"C'mon Baggy..Get with the beat"
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Andrew Woodcock
Film God
Posts: 7477
From: Manchester Uk
Registered: Aug 2012
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posted February 26, 2017 11:37 PM
There will come a time Maurice, one day perhaps, when I'm forced to put my long existing drawings to the test.
Like yourself Maurice, I purchased a new one from Wittners for just my front hub, the rear one felt like it had always only ever seen either Posso or Elmo spools.
As often happens, it's previous owner had clearly tried fitting many different types of spools onto the front spindle hub.
The nylon ones will not last 5 minutes if you try to force certain spools onto them, for example Taylor spools. The springy plastic retaining splines either snap or wear down in an instance and subsequent fitted quality spools can no longer be retained correctly.
Since first knowing this before even buying one of these machines, then since buying the new spindle hub, like yourself, I haven't had any issues or a need to concern myself with the first planned upgrade.
However, should the day arrive when the new one shows any signs of wear, despite fitting only quality spools, then I would try to improve the situation on these. By then, I'm guessing I'd be left with no other option than to manufacture my own as I doubt Wittners would still stock the nylon ones then.
If I had a few made and they proved a success, I'd then get around 5 other sets made to hopefully help other users.
I had two designs planned. One utilizes the M3 tapped hole in the centre of the nylon to add an additional steel centre adaptor that then allows a knurled retaining steel cap to be fitted to existing nylon hubs.
My other design was an all steel arrangement that uses a,sprung ball bearing latching mechanism somewhat similar to your Fuji machine but utilizing 3 location and driving splines for accuracy of fit, not one.
My issue with the Beaulieu designed tab type, is that I feel they are slightly fiddly in removal of the spool though they work well apparently for securing any reel of Film.
Any that are made have to respect the rear datum point on these hubs to ensure 100% alignment onto the floating roller at the input guide. At 2200ft sizes, wheel wobble has to kept to absolute minimum by accuracy of hub bore sizing and also the same for the 3 driving splines.
The better the fit, the greater the success with these I feel.
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"C'mon Baggy..Get with the beat"
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Phil Murat
Jedi Master Film Handler
Posts: 671
From: Villeneuve St Georges, France
Registered: Dec 2015
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posted February 27, 2017 04:28 AM
Hello,
I am not sure to pretty understand what is wrote above......
So, just have a look for the link below and you get a more precise idea how my spindle works :
BEAULIEU MODIFICATIONS IN PROGRESS
The "Jumbo" reels (means 750 Meters) are very heavy , so it is very important to get them firmly installed.
Moreover the design described is "much, much" better than the last Beaulieu device you can find on last products and also than any super 8 machine on the market , even for Top machines...
At the end, this design is also very simple, very basic....
A "StandBy" Solution:
Anyway, replacing the original spindle for an other one, brand new, but showing same design is not a satisfactory solution.
So to avoid you to waste money in a part for that you know the same ploblem occurs a day or an other , I suggest to make a stand by modification of the spindle "in situ" :
1) Cut 3 flexible lugs (unused anymore)
2) Insert a sleeve (Aluminium, Brass or Steel soft, any) Outside Diam Approx 9mm , inside Diam 4mm Approx (Both dimensions to be determined)
3) Manage a "cross Hole" Approx 2mm/3mm Diam(90° from main Axis) so that a Securing Pin could pass through to block any Film Reel installed
4) The idea is to secure the bushing with 3 small screws installed 120° from each one, Head screws had to be flush once installed
Obviously,with this "Stand By" device, the reel is not "Firmly" secured , but it can not slide over and fall down....
[ February 27, 2017, 07:18 AM: Message edited by: Phil Murat ]
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