[chbot] Chchrobotics Digest, Vol 158, Issue 9
Mark Atherton
markaren1 at xtra.co.nz
Fri Nov 27 23:46:26 GMT 2020
Hi Graeme,
A 75V/10A transformer is a pretty specialist voltage, and while you
might get lucky finding one, the idea of 3 x 24V/10A with secondaries in
series sounds a more likely/lower cost option.
You might be able to do something clever with beefy ex-UPS transformers,
but they are not going to have their windings marked so there is a
possibility of injury if you wire them up wrongly.
Obvious places to scour include Echotech, Trademe, and Molten Media.
Regards,
Mark
PS Warren may also have some ideas, or something squirrelled away :)
On 28/11/2020 11:51 AM, Graeme Absalom wrote:
> Hi All
> I need some help. Recently I've been pondering on why my spark eroder
> only delivers 3 Amps on the onboard ammeter. It hadn't worried me before
> because it does work. It is rated for 10 Amp. I decided that the
> transformer is far too small to deliver 10 Amps. I tried putting in a
> 120 volt 12 Amp and proved that the installed transformer is not capable
> but blew a power resister. Reading the book / specs again what I need is
> a wire wound, iron core, 230 volts to 75 volts AC and 10 Amp. The book
> uses 3 x 24volts AC 10Amp transformers in series.
>
> Does anyone know where I could get a approx 75 volt, 10 transformer?
>
> Thanks
>
> Graeme Absalom
> ------------------------------------------------------------------------
> *From:* Chchrobotics <chchrobotics-bounces at lists.ourshack.com> on behalf
> of chchrobotics-request at lists.ourshack.com
> <chchrobotics-request at lists.ourshack.com>
> *Sent:* Friday, 27 November 2020 1:00 AM
> *To:* chchrobotics at lists.ourshack.com <chchrobotics at lists.ourshack.com>
> *Subject:* Chchrobotics Digest, Vol 158, Issue 9
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>
> Today's Topics:
>
> 1. Molten Media Stripper Party - Thursday 6:30pm until late!
> (Andy Gardner)
> 2. Re: Molten Media Stripper Party - Thursday 6:30pm until late!
> (Stephen Irons)
> 3. Re: Molten Media Stripper Party - Thursday 6:30pm until late!
> (rudy.kremers at 123gaming.com)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 26 Nov 2020 09:48:07 +1300
> From: Andy Gardner <ceo at andygardner.com>
> To: chchrobotics at lists.ourshack.com
> Subject: [chbot] Molten Media Stripper Party - Thursday 6:30pm until
> late!
> Message-ID: <6cecaa05-c59a-dfa9-478d-ffa386916113 at andygardner.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
>
>
> Rudy and I would like to thank Russell, Stephen, Spencer and Brindsley
> to coming to the Stripper Party last night, between them they stripped
> over 70 system units, and made a huge dent on the scrap pile that we
> need to urgently process by the end of the week. Legends!
>
> We're having another party tonight at 6:30pm at 8b Wordsworth Street, so
> if anyone would like to come along and help that would be superb!
>
> It's a lot of fun - imagine pulling stuff apart and not getting in
> trouble with your dad for doing so!
>
> Hope to see you there,
>
> Andy
>
>
>
> On 25/11/20 10:37 am, Andy Gardner wrote:
>>
>> Sorry about neglecting to include the address. I knew, after getting back from sorting and moving stuff from there in the small hours, I would forget something in the invitation email.
>>
>> The Stripper Party is at 8b Wordsworth Street - the old location. We're having one tonight, and depending on how much stuff we manage to get through, we might need to have another one on Thursday!
>>
>> There's a lot more room to move there now that most of the "stock" has be relocated.
>>
>> The new location is 11/21 Michelle Road, Wigram, and will be run in a more efficient and tidy manner.
>>
>> There is going to be a special section - in the new much larger and tidier shop - for stuff that robotics members (and men's shed members) will be interested in.
>>
>> We will probably be closed for a few days as we're just waiting for Enable to get the fibre installed. I'm planning to pull some old cat5 phone lines out of some ducting (and replace with a pullstring) to speed up the install when the contractor arrives.
>>
>>
>> Cheers,
>>
>> Andy
>>
>>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 26 Nov 2020 10:14:48 +1300
> From: Stephen Irons <stephen at irons.nz>
> To: Christchurch Robotics <chchrobotics at lists.ourshack.com>
> Subject: Re: [chbot] Molten Media Stripper Party - Thursday 6:30pm
> until late!
> Message-ID: <O0FDKQ.WZV6VE1AFOLG2 at irons.nz>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>
> It was great fun. It was interesting to see how various PC cases work
> -- how easy it is to access any part on some, but on others, everything
> got in the way of something else.
>
> We had to make-do with the tools we had last night. Next time, I would
> take the following:
> cordless drill/driverlong driver bits, 150 mm or longer
> Philips #2 or Pozidrive #2 -- Pozidrive bits work in Philips screws,
> but not the other way around)Torx T15
> any other driver bits and hand screwdrivers that you have -- you never
> know what you will needside-cutters for cable tieslong-nose plierssmall
> prybar for levering -- I used a 6 mm flat screwdrivercut-resistant
> gloves (Ninja, Esko, etc). Leather will work but might be a bit
> thickother PPE. There did not seem to be much danger from falling
> objects, noise, dust, flying chips, sparks; use your common sense.
> I am busy tonight, but would otherwise be happy to help.
>
> Hope your move to the new premises goes well.
>
> Thanks
>
> Stephen Irons
>
>
> On Thu, Nov 26, 2020 at 09:48, Andy Gardner <ceo at andygardner.com> wrote:
>>
>>
>> Rudy and I would like to thank Russell, Stephen, Spencer and
>> Brindsley to coming to the Stripper Party last night, between them
>> they stripped over 70 system units, and made a huge dent on the scrap
>> pile that we need to urgently process by the end of the week. Legends!
>>
>> We're having another party tonight at 6:30pm at 8b Wordsworth Street,
>> so if anyone would like to come along and help that would be superb!
>>
>> It's a lot of fun - imagine pulling stuff apart and not getting in
>> trouble with your dad for doing so!
>>
>> Hope to see you there,
>>
>> Andy
>>
>>
>>
>> On 25/11/20 10:37 am, Andy Gardner wrote:
>>>
>>> Sorry about neglecting to include the address. I knew, after getting
>>> back from sorting and moving stuff from there in the small hours, I
>>> would forget something in the invitation email.
>>>
>>> The Stripper Party is at 8b Wordsworth Street - the old location.
>>> We're having one tonight, and depending on how much stuff we manage
>>> to get through, we might need to have another one on Thursday!
>>>
>>> There's a lot more room to move there now that most of the "stock"
>>> has be relocated.
>>>
>>> The new location is 11/21 Michelle Road, Wigram, and will be run in
>>> a more efficient and tidy manner.
>>>
>>> There is going to be a special section - in the new much larger and
>>> tidier shop - for stuff that robotics members (and men's shed
>>> members) will be interested in.
>>>
>>> We will probably be closed for a few days as we're just waiting for
>>> Enable to get the fibre installed. I'm planning to pull some old
>>> cat5 phone lines out of some ducting (and replace with a pullstring)
>>> to speed up the install when the contractor arrives.
>>>
>>>
>>> Cheers,
>>>
>>> Andy
>>>
>>>
>>
>>
>> _______________________________________________
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> Message: 3
> Date: Thu, 26 Nov 2020 01:45:14 +0000
> From: "rudy.kremers at 123gaming.com" <rudy.kremers at racingworld.com>
> To: Christchurch Robotics <chchrobotics at lists.ourshack.com>
> Subject: Re: [chbot] Molten Media Stripper Party - Thursday 6:30pm
> until late!
> Message-ID:
>
> <AM6PR08MB33191A86B00452B7B6DA60BA86F90 at AM6PR08MB3319.eurprd08.prod.outlook.com>
>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi,
> We'll be at Molten Media from about 3:30pm onwards if anyone wants to
> come early.
> See you there.
>
> Thanks,
> Rudy
>
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> ------------------------------
>
> End of Chchrobotics Digest, Vol 158, Issue 9
> ********************************************
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