From peterka at bc.edu  Wed Aug  3 12:51:26 2005
From: peterka at bc.edu (Katherine Peter)
Date: Wed, 03 Aug 2005 12:51:26 -0400
Subject: [Usittne] Dust Collection question
Message-ID: <web-5065002@be2.bc.edu>

Dear Usitt members,

We at Boston College are looking to invest in a new dust collection and air filtration system for the Scene Shop. We currently have 2  portable dust collectors (2HP each)  one attachted to the radial arm saw  and one on the table saw, but are looking into a more comprehensive system including air filtration and possibly fume collection for welding purposes.  Has anyone recently installed such a  system or have any recommendations for  vendors or equipment that we should look into?

Thanks so much,

Kathy Peter
Technical Director
Robsham Theater
Boston College 

From barnetsh at bc.edu  Wed Aug  3 13:13:09 2005
From: barnetsh at bc.edu (Shep Barnett)
Date: Wed, 3 Aug 2005 13:13:09 -0400
Subject: [Usittne] Dust Collection question
In-Reply-To: <web-5065002@be2.bc.edu>
Message-ID: <auto-000098687825@fe2.bc.edu>

Kathy,

This is great!  Aslo, here is the Grizzly sight if you want to look at there
stuff: http://www.grizzly.com/products/mach-specs-pdfs.cfm?key=570

Thanks,

Shep

-----Original Message-----
From: usittne-bounces at mit.edu [mailto:usittne-bounces at mit.edu] On Behalf Of
Katherine Peter
Sent: Wednesday, August 03, 2005 12:51 PM
To: usittne at mit.edu
Subject: [Usittne] Dust Collection question

Dear Usitt members,

We at Boston College are looking to invest in a new dust collection and air
filtration system for the Scene Shop. We currently have 2  portable dust
collectors (2HP each)  one attachted to the radial arm saw  and one on the
table saw, but are looking into a more comprehensive system including air
filtration and possibly fume collection for welding purposes.  Has anyone
recently installed such a  system or have any recommendations for  vendors
or equipment that we should look into?

Thanks so much,

Kathy Peter
Technical Director
Robsham Theater
Boston College 
_______________________________________________
USITTNE mailing list
USITTNE at mit.edu
http://mailman.mit.edu/mailman/listinfo/usittne


From keith_cornelius at emerson.edu  Wed Aug  3 17:28:55 2005
From: keith_cornelius at emerson.edu (Keith Cornelius)
Date: Wed, 03 Aug 2005 17:28:55 -0400
Subject: [Usittne] Dust Collection question
In-Reply-To: <web-5065002@be2.bc.edu>
References: <web-5065002@be2.bc.edu>
Message-ID: <42F13717.1040500@emerson.edu>

Hi--

Depends on the scope of the system you envision.  Dust collection "done 
right"--i.e. a turnkey system with central collector and designed 
ductwork--is expensive and typically requires that machines have only 
one fixed location, which can be a problem in shops where machines are 
moved around as projects require.  I've only been around the 
installation of one such system; it cost $30K in 1982.

We currently have a mix of Delta, Jet and Dayton portables; most are 10 
years old and have never given a problem.  They work okay at collecting 
the dangerous fine dust, but  are not as effective with the larger 
particles as a central system would be.  The best thing we've done to 
improve their effectiveness is to wire them through relays so they come 
on  automatically when the machine is started.

We have a FumeMaster  exhauster in our metal shop.  It's worked fine for 
12years, although the flexible hose is  tedious to drag around when 
welding large units.  An array of articulated overhead arms, each 
attached to its own exhauster, is reported to be the best approach to this.

 I've heard many good things about Oneida Air Systems dust collection 
systems, but have no first-hand experience.

You might check with officer(s) of the  National's Health and Safety 
Comission.  The did several sessions on dust collection at a conference 
a few years ago.

Good luck--I'd be interested to hear of any good sources of info you 
discover.

KC



Katherine Peter wrote:

>Dear Usitt members,
>
>We at Boston College are looking to invest in a new dust collection and air filtration system for the Scene Shop. We currently have 2  portable dust collectors (2HP each)  one attachted to the radial arm saw  and one on the table saw, but are looking into a more comprehensive system including air filtration and possibly fume collection for welding purposes.  Has anyone recently installed such a  system or have any recommendations for  vendors or equipment that we should look into?
>
>Thanks so much,
>
>Kathy Peter
>Technical Director
>Robsham Theater
>Boston College 
>_______________________________________________
>USITTNE mailing list
>USITTNE at mit.edu
>http://mailman.mit.edu/mailman/listinfo/usittne
>
>  
>


From KGEaston at hammond.k12.in.us  Thu Aug  4 14:58:12 2005
From: KGEaston at hammond.k12.in.us (Easton, Kenneth G.)
Date: Thu, 4 Aug 2005 13:58:12 -0500
Subject: [Usittne] Theatre position
Message-ID: <603C042BC7334C40AD9166C5A04DA90E03097798@exchange2003.hammond.k12.in.us>

My name is Greg Easton, and I am the Fine Arts Department Chairman at
Gavit High School in Hammond, Indiana.  Our theatre director of many
years just retired leaving us in need of a drama teacher/theatre
director.  We are looking for someone who is particularly strong in
technical theatre and stagecraft.  We have an excellent facility and a
strong reputation in the performing arts.  In our upcoming school year
we will have two major productions, Twelve Angry Men and Into The Woods.


 

 

Greg Easton, Gavit High School

219-989-7325 ext. 24 - office

219-662-7460  - home

 

Thank you and best wishes.

 

Sincerely,

Greg Easton

 

 

 

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From ani_td at yahoo.com  Fri Aug 19 10:04:40 2005
From: ani_td at yahoo.com (anna labykina)
Date: Fri, 19 Aug 2005 07:04:40 -0700 (PDT)
Subject: [Usittne] Motorized turntable?
Message-ID: <20050819140440.7736.qmail@web50105.mail.yahoo.com>

Dear USITT New England,

for a production of Dracula at Salem State College we
are looking to build a 12' revolve on a rake.  I am
looking for a motorized assembly to power up the
turntable that could be possibly rented or borrowed
for the production, or any info on other sources.  Due
to time and budget constraints, we'd prefer to not
construct our own motor rig, but if that's my only
option, I won't turn away opinions from anyone who's
done a motorized revolve.  Thank you very much,

Anna Labykina
TD, Salem State College
617.388.5656

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

From mptecdir at gmail.com  Fri Aug 19 14:16:39 2005
From: mptecdir at gmail.com (Michael Powers)
Date: Fri, 19 Aug 2005 14:16:39 -0400
Subject: [Usittne] Motorized turntable?
In-Reply-To: <20050819140440.7736.qmail@web50105.mail.yahoo.com>
References: <20050819140440.7736.qmail@web50105.mail.yahoo.com>
Message-ID: <58f67b0f050819111668d20348@mail.gmail.com>

On 8/19/05, anna labykina <ani_td at yahoo.com> wrote:
> 
> ...... we are looking to build a 12' revolve on a rake.  I am
> looking for a motorized assembly to power up the
> turntable that could be possibly rented or borrowed......... we'd prefer to not
> construct our own motor rig, but if that's my only
> option.......
> 

Anna,

I know Sapsis rents some small motorized turntables and I think he may
rent the edge drive power unit separately, but I don't know the price
range.

http://www.sapsis-rigging.com/  

Warehouse and shop:
         Sapsis Rigging, Inc
         3883 Ridge Ave
         Philadelphia PA 19132
         800-727-7471
         215-228-0888
         Fax: 215-228-1786 

In the Boston area, contact Limelight Productions.  I don't know if
they rent revolves or not but they might be able to point you to
someone closer than Sapsis.

http://www.limelightproductions.com/

471 Pleasant Street, Lee, MA 01238-9322
Tel 1-413-243-4950/1-800-243-4950 Fax 1-413-243-4993/1-800-243-4951

If it turns out you need to build, I'll be glad to offer as much help
as I can.  Over the years I've designed and built over 20 revolves,
from shop built 8' dia. to a 40' commercial installation.

If you wind up building it, I have a few questions:
1. Revolve on a rake, is the revolve raked also?
2. Does the revolve mount on top of the rake or is it built in so it's
flush and level with the rake?
3. What is your time frame, when does the build start and when does
the revolve need to be installed and operational?
4. What is your budget for the revolve, all inclusive?
5. Is your crew all student or do you have some staff other than yourself?
6. Does your shop have welding capability?
7. Will the revolve be built in the shop and moved to the stage or
built in place on stage?
8. Does the design allow any way to conceal the drive mechanism or
must it be located beneath the deck/rake?

Hope this helps, Let me know how things are going.

-- 
Michael

Michael Powers
413-863-4376 home
413-522-3036  cell


From AMBROSTEIN at aol.com  Mon Aug 22 13:18:17 2005
From: AMBROSTEIN at aol.com (AMBROSTEIN@aol.com)
Date: Mon, 22 Aug 2005 13:18:17 EDT
Subject: [Usittne] need someone for a theatre dept. review
Message-ID: <89.2d8bb0c4.303b62d9@aol.com>

Hi all!  I am looking for a design/tech teacher from a school  comparable to 
Wheaton College for an outside review.  Background - there  are 4 full time 
faculty (2 acting/directing, 1 dance, and {yours truly} costume  & set design), 
1 full time staff (t.d. and teaches stagecraft &  lighting), and 1 adjunct 
(theatre history).  We have about 40 majors.
 
Dates - hopefully, Sept. 11, 12 &13, if that doesn't work we are  looking at 
other possible dates in Sept.
 
Responsibility - come in on Sunday, 11th, meet us for dinner
                    Monday  - morning first thing, meet with the Provost, 
then spend the rest of  the
                        day  with us and the students.
                    Tuesday  - wrap up with another meeting with the Provost
 
We will pay for travel, and meals, and you will be given a $500  honorarium.
 
If anyone is interested, please contact me at the number below as soon as  
possible.  Sorry, for the last minute plea, but I am trying to get this  taken 
care of by the end of the week.
 
thanks,
 
jane stein
 
John  Ambrosone & Jane Stein
Lighting & Costume Design
6 Ridge  Road
Lawrence, MA. 01841
978-687-2598 Phone
978-687-3330  Fax
Ambrostein at aol.com
_www.johnambrosone.com_ (http://www.johnambrosone.com/) 
_www.janealoisstein.com_ (http://www.janealoisstein.com/) 

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From ani_td at yahoo.com  Mon Aug 22 13:52:22 2005
From: ani_td at yahoo.com (anna labykina)
Date: Mon, 22 Aug 2005 10:52:22 -0700 (PDT)
Subject: [Usittne] Motorized turntable?
In-Reply-To: <58f67b0f050819111668d20348@mail.gmail.com>
Message-ID: <20050822175222.52126.qmail@web50110.mail.yahoo.com>

Dear Michael,

thank you for the info.  I am talking with the
Huntington about their motorized dealings, as well as
Sapsis.  High Output and ALPS in Boston do much the
same thing as LimeLight, and they rent chain drives,
but not assemblies I am interested in.  I was just
presented with the design on Fri, so it's entirely
possible we'd have to cut the whole revolve idea
alltogether due to budget concerns, but I need to get
some solid figures on how much this might cost before
we cut it:)

Thank you for your offer of help as well - I take all
the help I can get since I hate working in a vacuum,
and I am doing some brainstorming with a person here
in Salem, but they haven't done a turntable in a
while...  I have only done one turntable before, and
it was man-powered, so this is quite different.  We
would have to build the actual revolve part of the
assembly regardless, so to answer your other
questions:

> 1. Revolve on a rake, is the revolve raked also?

Yes.  I should have a working sketch done by the end
of the day, I can e-mail it to you.  It gets better
though - the rake is also a wagon.  I know, too many
things at once, but I want to know if it's possible at
all.  The idea behind the piece is that Dracula
commands some furniture and things to move with his
powers... The  raked wagon is 12'x12', 6" DS to 36"
US.  The Revolve is on top of it, raked as well,
having a 6" profile (this is approximate, it could be
as thin as possible or probably up to 9" thick)  It
would need to support at least 750 lbs worth of people
while moving and itself.  It could be built as either
wheels up or wheels down or some other way, so long as
the DS trap (oh yes, there is also a hole in it...)
doesn't snag on anything...

> 2. Does the revolve mount on top of the rake or is
> it built in so it's flush and level with the rake?

See above.  This size of the disk presents an
additional problem of gravitaional pull down the rake,
so the center pivot should be as beefy as possible (I
also just thought of having tires/wheels supporting it
on the DS end so it doesn't try to travel downwards
too much...)

> 3. What is your time frame, when does the build
> start and when does the revolve need to be installed
and operational?

Large minus - build starts Sept 7, when the students
get here.  Show loads in Sept 24, it should be
operational by Sept 26, show starts to tech Oct 8. 
This is one of 8 large scenic pieces (all wagons
except for the trap stage plug...)

> 7. Will the revolve be built in the shop and moved
> to the stage or built in place on stage?

Large plus (in this case) - the stage is the place we
build, so it doesn't have to be built in pieces.
 
> 4. What is your budget for the revolve, all
inclusive?

Haven't gotten that far yet, but I think I can't give
it more than a $1000 - given the other set pieces,
that's more than fair.

> 5. Is your crew all student or do you have some
> staff other than yourself?

All students (mainly clueless sophomores, no
workstudies) and an ATD who is also doing a million
other things.

> 6. Does your shop have welding capability?

Yes, and it will have to be a steel frame for the
wagon and possibly for the revolve itself (although I
won't have the time to bend steel into the circle...).


> 8. Does the design allow any way to conceal the
> drive mechanism or must it be located beneath the
deck/rake?

If it were to have a rim drive, the 12'x12' deck can
be augmented to house the drive upstage in a consealed
box.  If it were a chain/sprocket mechanism, it could
be either upstage or belowdeck.  As I said, this is
the beginning of the design, and the designer would be
all right with just the rake, but I HAVE to know how
possible this is:)

I hope Western Mass is as beautiful as ever right now
- I went to MHC for undergrad, so I miss it...

Thank you so much for the info.  Please let me know
your thoughts.

Anna


Anna Labykina
TD, Salem State College
978.542.7111 office
617.388.5656 mobile


		
____________________________________________________
Start your day with Yahoo! - make it your home page 
http://www.yahoo.com/r/hs 
 

From ani_td at yahoo.com  Mon Aug 22 14:07:07 2005
From: ani_td at yahoo.com (anna labykina)
Date: Mon, 22 Aug 2005 11:07:07 -0700 (PDT)
Subject: [Usittne] Oops
In-Reply-To: <20050822175222.52126.qmail@web50110.mail.yahoo.com>
Message-ID: <20050822180707.43611.qmail@web50101.mail.yahoo.com>

Didn't mean to broadcast the e-mail, need to pay more
attention:)

Anna

Anna Labykina
TD, Salem State College
978.542.7111 office
617.388.5656 mobile

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

From mptecdir at gmail.com  Mon Aug 22 21:56:10 2005
From: mptecdir at gmail.com (Michael Powers)
Date: Mon, 22 Aug 2005 21:56:10 -0400
Subject: [Usittne] Motorized turntable?
In-Reply-To: <20050822175222.52126.qmail@web50110.mail.yahoo.com>
References: <58f67b0f050819111668d20348@mail.gmail.com>
	 <20050822175222.52126.qmail@web50110.mail.yahoo.com>
Message-ID: <58f67b0f050822185635efbb4b@mail.gmail.com>

A couple of people indicated they would be interested in whatever
information was shared on this topic, so I'm posting it to the list.

On 8/22/05, anna labykina <ani_td at yahoo.com> wrote:
......................
> > 1. Revolve on a rake, is the revolve raked also?
> 
> Yes.  I should have a working sketch done by the end
> of the day, I can e-mail it to you.  It gets better
> though - the rake is also a wagon. ....................I want to know if it's possible at
> all.  

E-mail as soon as you have it!!

It's very possible.  I've done it before.  The Wizard of Oz, Dorothy's
house on a revolve on a wagon.  For the tornado the wagon crossed the
stage in a large arc while the house spun.  The house was set on a
diagonal so the audience only saw two sides at a time.  Two sides
painted in color, two sides in grey scale.  While it spun, the
"Lightning" was all in the amber range so it tended to kill the
colored sides.  Dorothy was inside the spinning house changing into a
colored costume (underdressed) so we actually did the color change
like the movie.

In your case the rake adds a small wrinkle to the equation but not a biggie.

> The  raked wagon is 12'x12', 6" DS to 36" US.  The Revolve is on top of it, raked as 
> well, ......

Wow, a rather steep rake.  Just as a point of note, Equity requires
notification if a rake exceeds 3/4" per foot.  Your rake is 2-1/2" per
foot.

If the rake unit is 12x12 and the revolve dia is 12,  that doesn't
leave much room for a surround frame.

 I still have another question.  Is there a surround, resulting in a
12x12 walking surface,  or does it look like a 6" thick cylinder on
top of 12x12 rake with the corners of the unit 6" (or so) lower than
the revolve?  Best way is having the revolve "built-in" to the rake
creating a 12x12 flat (but slopped) final walking surface.  This
allows the mechanics to be built in below the acting surface.  It
allows the rake construction to contain part of the revolve height
thus creating a lower over all height.  A cylinder on top requires a
skirt or facing around the revolve.  An edge drive would be rubbing on
a show surface.

> as thin as possible or probably up to 9" thick) 

As noted above, built in method could result in a unit with the lower
edge 9" above the stage floor, an "apparent"  3" revolve thickness.

> would need to support at least 750 lbs worth of people
> while moving and itself. 

Easy.  Many ways to frame and support this load.  It's all a matter of
framing and caster placement.


> wheels up or wheels down or some other way, so long as
> the DS trap (oh yes, there is also a hole in it...)
> doesn't snag on anything...

The inverted caster method for the revolve allows you to off set the
rake vs: revolve casters.  This could, for example, use a 4" upright
caster for the rake and a 4" inverted caster for the revolve, but an
overall height, bottom of rake caster to top of revolve caster, of
only 7".

>  This size of the disk presents an
> additional problem of gravitaional pull down the rake,
> so the center pivot should be as beefy as possible (I
> also just thought of having tires/wheels supporting it
> on the DS end so it doesn't try to travel downwards
> too much...)

Yes you do need a beefy pivot and it needs to be anchored VERY firmly.
 Horizontal wheels on the downhill side sound like a good idea but can
add more problems than they solve unless your construction is dead-on,
1/64" accuracy or better.  First, the edge the wheels guide, needs to
be a VERY accurate circle, machine cut, not hand sawn.  Then the
circle and the center pivot need to be perfectly concentric.  If the
circle is not perfect, the wheels will be forcing the the revolve
against the pivot where the radius is too large and not supporting at
all where the saw cut was inside the line.  If they are not
concentric, the revolve will act like a large cam, pushing the wheels
away (or the pivot) or hanging in space every 180 degrees.  It can be
done.  Build the part the wheels are to push against and cut/build the
circle 1/4" to 1/2" too large.  Mount the center pivot, revolve
casters etc.  Now mount a large circular saw on a rigid frame, set at
desired radius plus 1/8".  slowly spin the revolve and slowly lower
the blade into the work.  Repeat at the exact desired radius. The
first cut allows the second cut to be very smooth.

The pivot pin diameter is not as critical as the strength of the
attachment of the pin itself and the attachment of the bearing to
their respective units.  I tend to prefer having the pin stationary
and the bearing mounted on the revolve.  The next most critical item
is how long your pin extends unsupported.  Shorter is better.  For the
steepness of the rake you mentioned, the load mentioned, allowance for
live load forces,  minimum 2:1 safety factor, I'd say you could go
with a 1" to 3" diameter pin if it extends no more than it's own
diameter unsupported.  My gut feeling would be toward a 2" shaft.

> 
>- build starts Sept 7, when the students
> get here.  Show loads in Sept 24, it should be
> operational by Sept 26, ..........

Hummmmmmmmmm!  Gonna be tight!
 
>  the stage is the place we
> build, so it doesn't have to be built in pieces.

Definite plus as long as rehearsals don't cut into the build time.
> 
> > 4. What is your budget for the revolve, all
> inclusive?
> 
> Haven't gotten that far yet, but I think I can't give
> it more than a $1000 - given the other set pieces,
> that's more than fair.

Again, a little tight, but possible depending on what you have in
stock and what you can borrow.
> 
> > 5. Is your crew all student or do you have some
> > staff other than yourself?
> 
> All students (mainly clueless sophomores, no
> workstudies) and an ATD who is also doing a million
> other things.

This could prove to be the biggest obstacle unless you intend to spend
a couple of 100 hour weeks doing it all your self.
> 
> > 6. Does your shop have welding capability?
> 
> Yes, and it will have to be a steel frame for the
> wagon and possibly for the revolve itself (although I
> won't have the time to bend steel into the circle...).

Wagon, steel frame, yes!  Have you thought about a frameless and/or
stressskin for the revolve???    If prices are similar in your area,
it would run about $300 - $400 to have a steel fabricator roll you two
12' circles out of 16 ga, 1" sq tube. Time to build your own roller,
it could be ready by thanksgiving :-)  !!!!

Without seeing the design, all this is a bit vague, but maybe it can
get you started.
-- 
Michael

Michael Powers
413-863-4376 home
413-522-3036  cell


From atstuart at hotmail.com  Wed Aug 24 20:38:35 2005
From: atstuart at hotmail.com (Andrew Stuart)
Date: Wed, 24 Aug 2005 17:38:35 -0700
Subject: [Usittne] Motorized turntable?
In-Reply-To: <20050819140440.7736.qmail@web50105.mail.yahoo.com>
Message-ID: <BAY107-F199A3AAF6F0C501215CA8BCFAB0@phx.gbl>

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