Tips and Free Stuff
Welcome to Zerksus
Engineering South African based
have been quiet on the commercial side. A lot of effort has gone into
contracts dealing directly with clients and that has served us well.
But the itch is always there to be a bit more creative and have
products to sell. Hopefully the website will start to have some more
products and services available.
New capabilities by Q2 2015:
We still continue
to design and manufacture special power supplies, FPGA and CPU cards,
modules (like GSM/GPS), stepper motor drives and many other types of
circuits. We are also still committed to fuel saving research.
x 2 meter plasma cutter. Currently we will only be able to cut mild
steel up to 5mm and stainless up to 2mm. Hopefully this machine will be
- CO2 laser (around June) on the 3m x 2m platform. This is only planned as a 90W laser for acrylic/perspex and plywood. No metal.
format 3D printer. We already have a common RepRap 20cm x 20cm 3D
printer but there is a need for a much higher speed and powerful
printer that can do larger parts. Seeing that all the manufacturing is
done in-house please let me know if there are any needs for really
large 3D printers (like 1meter x 1meter). For printers these sizes it
will not use filament but extrude directly from the raw material.
x 40cm x 10cm CNC router. This is mainly used to route PCBs,
drill holes and machine small-ish boxes. But we are procuring a 2.2kW
high speed spindle for it, so it should prove to be useful for many
other tasks. For now only non-metal machining.
- LDI (Laser
Direct Imaging) for PCB manufacturing. The first machine is up and
running but can only do 6.5cm x 10cm PCBs. The laser throws a 20um spot
but the step size if 16um. Keep in mind 1mil = 24.5um, so currently the
unit cannot make perfect increments in mil scale. But the resolution is
still excellent. Track and gap size varies on PCB copper thichness. You
can get 6 mils on 35um copper and as small as 3mils on 18um copper. It
is a rapid manufacturing process but unfortunately still slow. The
system takes normal Gerber files and generates either raster (slow) or
vector (much faster but more error prone to mechanical variants)
outputs. We can make single or double sided PCBs but for now it won't
be through hole plated. The PCBs can be made with "solder mask" which
is made with the normal negative resist but heat modified after
development. It is fairly resistant to temporary soldering heat and
even thinners (as flux remover) but gets attacked by bases (like
caustic soda). Again, this is for rapid prototyping. Also no silk
screen/legend. This can be done as a subtractive process on the
soldermask. This system is used to quickly make 1 or 2 boards
(same day) that will normally take 2 to 3 days elsewhere and also at
resolutions better than normal photographic processes. A larger machine
is planned but I must warn that PCBs will be expensive as it is very
- The LDI machine can be used to make
quick break-out boards for difficult to mount SMD components. Think for
instance how you would do a quick evaluation of a 3mm x 3mm, 16 pin QFN
ST accel sensor. The LDI process will allow a designer to pick up a
component at e.g. RS Components today, quickly CAD a postage stamp size
carrier and have it ready somewhere during the next day for
breadboarding. Years ago, when all the components were through
hole, you could do this on strip board/Vero board but now more and more
components are coming out in these difficult to use, small sizes. This
generally requires the manufacture of a production PCB that not only
costs a lot, takes lots of manufacturing time but also takes a lot of
your time in making sure that the design is 100%. I know that many of
you have a box full of little, interesting components, bought over many
years that you never had the time or money to quickly test/evaluate
that are probably already obsolete by now.
interest sake we have quite a few HHO power supplies available due to
the fact that the contract lapsed with our one client (constant 20A per
PSU from 12V or 24V vehicle battery input). Also great to increase fuel
efficiency for generators during our country's wonderful loadshedding.
Talk to me about it.
Drop me an email to firstname.lastname@example.org
Zerksus is a design and manufacturing business
specializing in electronics. Zerksus was founded in1997 and is dedicated
to long term relationships with clients.
We are able to
assist with custom designs and manufacturing as well as the supply with
standard products to make your life easier. We specialize in security
systems, vehicle tracking, FPGAs, microcontrollers and power
supplies. If you have any queries please don't hesitate to email us at
(Please report broken links)