[Lab] Plastic Bending Strips

[Richard Guy Briggs]

On Thu, Jul 04, 2013 at 04:50:14PM -0400, Henri Kuschkowitz wrote:
> Wow, Richard. That's really generous. I will let you know how it will turn out.

No worries, that's why we're in this community list.  :)

I've had it for several decades, used it infrequently, but it has come
in handy when I have needed it.

Another place it is really useful is for testing vacuum tube equipment.
You can bring up the voltage slowly, testing things gradually and shut
things down before it gets into a range where it can self-destruct.
This is of particular concern for tube equipment that hasn't been turned
on in decades where caps have dried out...

> Cheers,
> Henri
> 
> On 2013-07-04, at 4:33 PM, Richard Guy Briggs <rgb at tricolour.net> wrote:
> > On Thu, Jul 04, 2013 at 04:07:09PM -0400, Henri Kuschkowitz wrote:
> >> So, I am still getting some more costs tomorrow, but I think I might
> >> go with this quick/dirty setup:
> >> http://www.youtube.com/watch?v=wVEf7PfuKxo 
> >> 
> >> What do you guys think? This leads me to my next question, would
> >> anybody know if the lab has an item similar to this:
> >> http://www.temcoindustrialpower.com/products/Variable_Transformers/TVT001.html?utm_source=temcotransformer.com&utm_medium=Banner%2BAd&utm_campaign=Variac%2BTVT001
> > 
> > If not, I have one you are welcome to borrow.  It is an old one mounted
> > on a 4U 19" rack mount plate.  It should manage 5A without too much
> > trouble.
> > 
> >> Cheers all,
> >> Henri
> >> 
> >> On 2013-07-04, at 7:54 AM, Alex <alexbarbour at bell.net> wrote:
> >> 
> >>> Henri
> >>> 
> >>> Angle iron is a common name applied to steel angles. some are extruded in the heavier sections and have a sharp outside corner.
> >>> 
> >>> Some are bent from flat stock and have a radiused corner.
> >>> These are better for use as formers for plastics.
> >>> 
> >>> Home depot. Hardware dept.
> >>> CTC ect.
> >>> ----- Original Message -----
> >>> From: Henri Kuschkowitz
> >>> To: Alex
> >>> Sent: Wednesday, July 03, 2013 9:12 AM
> >>> Subject: Re: [Lab] Plastic Bending Strips
> >>> 
> >>> Hey Alex,
> >>> 
> >>> I have a very particular type of acrylic we are going to be using that I doubt comes 'bendable'. Angle iron? I haven't seen those before. Got a reference or suggestion?
> >>> 
> >>> Cheers,
> >>> Henri
> >>> 
> >>> On 2013-07-03, at 8:03, Alex <alexbarbour at bell.net> wrote:
> >>> 
> >>>> On the other hand they do produce an acrylic sheet that can be
> >>>> bent cold .
> >>>> Have done small pieces by hand. For larger OR thicker ( say 1/8
> >>>> inch + )one needs a former for the edge. Angle iron with a round
> >>>> egde serves well.
> >>>> Alex B
> >>>> ----- Original Message -----
> >>>> From: Henri Kuschkowitz
> >>>> To: lab
> >>>> Sent: Tuesday, July 02, 2013 3:09 PM
> >>>> Subject: [Lab] Plastic Bending Strips
> >>>> 
> >>>> Hey guys,
> >>>> 
> >>>> I figured it's a good time to start asking the collective for
> >>>> some feedback. We are planing on bending larger sheets of acrylic
> >>>> (they will definitely not fit into the laser cutter) and I am
> >>>> looking at bending strip heaters to build a custom heating
> >>>> element for our purposes. Before I go ahead ordering the pieces I
> >>>> was wondering if anyone had ever used such a thing and/or knows
> >>>> of a good local source? For saving some money, I wonder if
> >>>> reusing a baseboard heater could do the trick :P
> >>>> 
> >>>> Cheers all,
> >>>> Henri 
> > 
> > 	slainte mhath, RGB

	slainte mhath, RGB

--
Richard Guy Briggs               --  ~\    -- ~\            <hpv.tricolour.net>
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