STEP 1

Select a presensitised Printed Circuit Board to match your artwork. Kinsten uses a positive photoresist. That is - UV transparent areas will be etched away on the final PCB. Your artwork should have opaque tracks on a transparent background. If you are printing your own, Laserstar & Jetstar can produce well defined artworks, with dense blacks. They are far superior for printing PCB artwork than overhead transparency film.
If you have an old negative artwork, then Quick Mark reversing film allows you to create a positive artwork from a negative.
See QUICKMARK page for details on reversing film.
See KINSTEN PRICE LIST for our extensive range of pre-sensitised Printed Circuit Board's.

Order Code ex GST
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800-310P Reversing film x 1 pack (10 sheets) A$ 91.00

STEP 2

Remove the protective coating and place the artwork against the presensitised surface. This can be done in a room with low level lighting. Kinsten does not require a darkroom for processing.

Expose the presensitised PCB through the artwork. Follow the link for additional information on using the KVB30D exposure box. Depending on your artwork, exposure time is normally around 90 seconds.

If a KVB30D is not available, a fluorescent lamp held close, and even bright sunlight can be used, but test exposures must be taken to determine correct exposure time.

Order Code	ex GST	View Cart
KVB30D 240vac UV Exposure Unit	A$ 680.00
US-KVB30D 110vac UV Exposure Unit	A$ 565.00

STEP 3

Develop the image using DP50 developer. This can be done at room temperature in a shallow plastic tray such as a photographic developing tray. If the image won't develop fully, or streaks of resist are left, either the exposure was insufficient, or the developer is exhausted.

A 50 gram sachet mixes with 1 litre of water and can develop a minimum of 10 x 100x150mm PCBs.

Once mixed, developer has a working life of one day.

Visit DP50 developer page for more information.

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DP50 Sachet - 50g	A$ 2.00

STEP 4

Fill an etch tank with your preferred etchant, following any mixing or dilution instructions. Ammonium persuphate is our etchant of choice, it is quick, relatively clean and affordable. Allow the tank to heat to operating temperature and place the PCB in the etchant. Turn on the bubbler or spray mechanism until all unwanted copper is removed.

Click ET10 for more information on the ET series bubble etch tanks.

Click Rota-Spray for more information on spray etch equipment.

Note: Pump position is for illustration only. In use it should be above the liquid level.

Order Code	ex GST	View Cart
AP-600 Ammonium Persulphate - 600g	A$ 15.00
AP-2.5K Ammonium Persulphate - 2.5kg	A$ 42.00
ET-20 240vac Etch System to 200 x 300mm PCB	A$ 70.00
US-ET-20 110vac Etch System to 200 x 300mm PCB	A$ 70.00

Ammonium persulphate can only be sent by Courier(road). International orders can not be accepted.

STEP 5

Drill holes and vias with a PCB drill. A high speed drill press is essential for carbide drills, but good results can be obtained with HSS drill bits in a hand held drill.

HSS drill bits can blunt quickly with fibre-glass boards and are best used with phenolic (PP) substrate PCB's. HSS drills are available for maintaining desoldering tools and can be ordered through our HAKKO DESOLDERING SPARES page.

Computronics supply new carbide drill bits or drill bits re-ground to be sharp as new. All have a 1/8" shank.

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CDB-0.60MM 0.6mm Carbide Drill Bit	A$ 3.50
CDB-0.60MM/50 0.6mm Carbide Drill Bit (Box/50)	A$ 100.00
CDB-0.80MM 0.8mm Carbide Drill Bit	A$ 3.50
CDB-0.80MM/50 0.8mm Carbide Drill Bit (Box/50)	A$ 100.00
CDB-1.00MM 1.0mm Carbide Drill Bit	A$ 3.50
CDB-1.00MM/50 1.0mm Carbide Drill Bit (Box/50)	A$ 100.00
CDB-1.20MM 1.2mm Carbide Drill Bit	A$ 3.50
CDB-1.20MM/50 1.2mm Carbide Drill Bit (Box/50)	A$ 100.00
68-1600 1.6mm Reground Carbide Drill Bit	A$ 3.40
CDB-1.60MM 1.6mm Carbide Drill Bit	A$ 4.00
CDB-1.60MM/50 1.6mm Carbide Drill Bit (Box/50)	A$ 125.00

Prices do not include GST. 10% GST applies to goods delivered in Australia.
Australian GST is not paid on shipments despatched to an international destination.
Prices are in Australian Dollars and subject to change without notice.
Sales are subject to Computronics General Terms and Conditions of Sale
E.& O.E.

Due to continuing product improvement efforts, specifications and appearance are subject to change without notice.

All mains powered equipment supplied by Computronics operates from 240Vac, 50Hz supply unless otherwise specified.

To place an order, select the order quantity and click the ADD button.
Add items from other pages - if required.
When all items have been added, click a View Cart link to edit your order
and continue to the secure order page.
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Finish your project with a professional looking
QUICK-MARK label

Making your own PCB's is easywith Kinsten

STEP 1

STEP 2

STEP 3

STEP 4

STEP 5

Making your own PCB's is easy
with Kinsten