RE: [CAD_CAM_EDM_DRO] Robotic Arm

Peter

What thickness Mylar are you using for your screen print?



I’ve got my machine it’s an old Dynapert 318, but with a full set of spare
parts and over two hundred parts feeders.

I also bought a full conveyer oven, which arrived about a week ago, customs
having ripped half the insulation out looking for drugs.

Am awaiting my first batch of PCB’s for one of our marine products for a smt
run.

The mylar film, or stainless sheet laser cutting have all now given loads of
options, but have very little advice.

One of the US dealers has dropped the price of their Chinese conveyer ovens
from $10,000 to about a quarter of that. It has three heating zones, and a
big set of fans to cool the parts.

Actually the oven would be the easiest thing to make, they say it’s all very
hi tech, but as you know from your delonghi the technology is minimal. My
conveyer oven does have a few safety issues, like the plug to the fans is a
microphone connector with 240V on it, and live pins. My only complaint is
the gap isn’t high enough to get a pizza through.

I looked at an oven on ebay the other day, it went for £20, I was very
tempted until I discovered it was 5m long, 3m wide and draws 50 amps on each
of three phases. But for others that are interested there are box table top
ovens for sale from China starting at around a thousand bucks ($).



Regs Mark



Dr. Mark Vaughan Ph'D. B.Eng. M0VAU

Managing Director

Vaughan Industries Ltd, reg in UK no 2561068

Water Care Technology Ltd, reg in UK no 4129351

Addr Unit3, Sydney House, Blackwater, Truro, Cornwall, TR4 8HH, UK.
Phone/Fax 44 1872 561288

RSGB DRM111(Cornwall)

_____

From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Peter Homann
Sent: 27 March 2007 06:36
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Robotic Arm



Hi Jon,

See below.

Jon Elson wrote:

> Peter Homann wrote:
>> Hi Jon,
>>
>> Good choice. I received my Pick and place machine a couple of weeks ago.
>> It is a Yamaha YM-84, commonly known in the USA as a Philips CSM-84.
>>
>> It came with about 50 feedersas well. I've already run out of feeder
>> slots
>> on the machine. It has 3 heads (0.7mm, 2mm and one about 4-5mm. It also
>> has a pneumatic centering station plus an upwards looking centering
>> vision
>> camera. Plus a tray freeder
>>
>> Ran off a handful of ModIO panels and a DigiSpeed panel over the
>> weekend.
>> It's quite a fun machine to use.
>>
>> One of the thinks I need to make is a number of waffle trays to hold
>> various components. One of them is the power inductor for the ModIO
>> power
>> supply. I purchase a part reel without the reel and the tape is all
>> cracked up. Iplan to use some 4mm perspex to mill an array of pockets to
>> suit the inductor. I'll draw it up in Autocad and use sheetcam to do the
>> nesting array and produce the G-Code.
>>
>> I've had a days training on it, and it is now productive.
> Great! I was worried that there was a malfuction, but I just
> had to manually crank the axes into the center of the workspace
> and then the error condition cleared up.
>
> I have a lot to learn on how the board conveyor and work stops
> are supposed to be used. I don't think it would take too long
> to get it placing parts, but I don't have any facility for
> applying the solder paste or reflowing the boards, yet.

The machine comes with a pendant that controls the menu on the RH screen.
The interface is primitive and similar to a Nokia phone text interface. It
hakes a while to get used to but is consistant.

Do you have a manual with it? If you have questions I can answer them to
the best of my limited knowledge.

>
> What are you doing for that?

I use a mylar laser cut stencil for applying paste. I also have a
pnuematic paste despenser as well.

For reflowing I use a fanforced toaster oven that I made a temperature
controller for.

>
> I see a solder paste dispenser is available, but this machine
> didn't come with one. (I still have to go through all the boxes
> of extra stuff, there could be one in there.)

I was told that many have tried unsuccessfully to get the despenser to
apply paste. It should only be used for adhesive.

>
> Thanks,
>
> Jon
>
>
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