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Drilling PCB board Manufacturing China, Drill PCB DIY, Drill PCB Process,Handdrill PCB Manufacturing,China Manufacturer

How to make really really good homemade PCBs
Note - this article is original material. There is currently a plagiarised copy of it on the site of an Indian electronics magazine credited to a rip-off artist called Indrani Bose.

This page is a guide to producing consistently high quality PCBs quickly and efficiently, particularly for professional prototyping of production boards. Unlike most other PCB homebrew guides, emphasis is placed on quality, speed and repeatability rather than minimum materials cost, although the time saved by getting good PCBs every time usually saves money in the long run - even for the hobbyist, the cost of ruined PCB laminates can soon mount up!

With the methods described, you can produce repeatably good single and double-sided PCBs for through-hole and surface mount designs with track densities of 40-50 tracks per inch and 0.5mm SMD pitches. A blog of robotics, electronics, mechanics, programming, and engineering.
Pictures, source code, circuit diagrams, ideas, thoughts, drawings, sketches and real-life goofups.

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Contact What to use for PCB Drilling ?PCB Drill Bits

Location Home/PCB Drill Bits
PCB Carbide Drill Bits
The PCB drill bits that we sell are made of high quality micro grain carbide. They are used primarily in CNC machines for drilling printed circuit boards for electronics but their toughness and accuracy lend them to uses in other industries. Our carbide drill bits are also used in medical and aerospace manufacturing for drilling small precision holes.

Carbide PCB drills are well suited for drilling composite materials such as G10 epoxy laminates, phenolic, plastics as well as various metals. They also lend themselves to drilling ceramic castings. Drilling printed circuit boards
X-ray drill of reference holes
Now we drill the holes for leaded components and the via holes that link the copper layers together. First we use an X-ray drill to locate targets in the copper of the inner layers. The machine drills registration holes to ensure that we will drill precisely through the centre of the inner layer pads.Printed Circuit Boards (PCBs)

Also see: Breadboard | Stripboard | Types of Circuit Board
Printed circuit boards have copper tracks connecting the holes where the components are placed. They are designed specially for each circuit and make construction very easy.

Designing, Creating and Soldering your own PCBs

The website build-electronic-circuits.com provides clear instructions on designing, creating and soldering your own PCBs.
Cleaning and Drilling a PCB ready for Soldering Experimental Research on the High Speed Drilling...
Paper Title:
Experimental Research on the High Speed Drilling of PCB Using Microdrill
Periodical Advanced Materials Research (Volume 426)
Main Theme Advanced Materials and Manufacturing Technology I Printed Circuit Prototyping

PCB prototyping, when approached in an orderly fashion, is a relatively straightforward process to master. Assuming that the appropriate discipline is exercised, printed circuits can be fabricated with little or no environmental impact.

These two facts are at the heart of Green CirKit.
Table of contents
(click on the icons for process tutorials)

PCB Shop Setup
PCB Artwork Creation
PCB Substrates
Drilling Methods

Holewall Activation
Electro-plating Drilling Copperclad Substrates
CNC drilling
The techniques for drilling copperclad for double-sided and multilayer PCBs with automated equipment are identical, with the exception that multiple drilling steps will be needed if your multilayer design includes buried or blind vias. Refer to the documentation that came with your drilling machine for more information (standard boilerplate cop-out).
Items to remember include:

set the STACK HEIGHT parameter to clear all dowel pins during traverse
set the SPINDLE FEED (inches per minute) and SPINDLE SPEED (RPM) for each drill size to values consistent with drilling standard 0.062" (1.6mm) FR-4 copperclad.
set the SPINDLE PLUNGE DEPTH so that the tip of the largest diameter drill bit fully enters the backing material. Otherwise, these large diameter holes will not totally penetrate to bottom laminate and exit foil.
DO NOT contour route the board immediately after drilling the stack. This should only be done after all other processing is complete.
Manual drilling
With the laminate stack formatted as detailed above, manual drilling is a straightforward, if somewhat mind-numbing process. Items to consider include:DIY Pcb Hand Drilling Machine by zorif
Download See AllJump To3 Steps Hand drilling PCBs on a budget
Login or register to post comments by kariloy Collected by 2 users
Tip/walkthrough
By kariloy
@ October 25, 2012
makes 'handy' holes on PCBs


Do you lack power tools (power drill, dremel, etc)? are you wary to use them? are you unable to get proper drilling precision because you lack a drill stand? and/or are on a severe budget or el cheap-o mode? And still... you really need to those holes done on your recently homemade PCB? Well, look no further, this tip is for you. Hand drilling resorting to an Archimedes drill.

Pros:

- Very cheap

- Reasonably accurate

Cons:

- Time consuming

- Very easy to break smaller (<0.9 mm) drill bits

DISCLAMER: If you're an hand model or otherwise depend on the softness of your hands (fingertips mostly) for a living don't use this method.

Method:

- Buy an Arcuimedes Hand Drill (can be bought che
Favorite

hello all,
This is my first instructable.
I am just a hobbyist who interested making circuits and their pcb's in complete DIY manner.i saw lot of articles of home made PCBs.they were quite good except one step.making holes for mounting components.start from laser printing the PCB layout to mounting the components you can carry out in home except the drilling procedure.you shld have a drilling machine with small drill chuck,which is capable of holding 0.5-1.5 drills.
Then i had in my mind,why not DIY PCB Hand drilling machine.
My goal is to built one from junk which is capable of drilling small holes to mount components.

Remember this is not sort of professional drilling machine.with it u can just make holes small enough to mount electronic components over PCB.
Finishing of the drilled holes will depend up on the type of drill you used.(made)

Below is my PCB hand drill and my PCB making setup.

ALWAYS WEAR SAFETY GLASSES WHEN OPERATING A DRILL PRESS, ESPECIALLY IF YOU ARE DRILLING WITH CARBIDE PCB DRILL BITS.
IF AVAILABLE, ALWAYS USE A VACUUM CLEANER TO REMOVE DEBRIS AND COLLECT AIRBORNE DUST DURING THE DRILLING OPERATION. THE DUST GENERATED DURING PCB DRILLING CAN POSE A VERY SERIOUS HEALTH HAZARD AND SHOULD NOT BE INHALED OR INGESTED UNDER ANY CIRCUMSTANCES.
When using a conventional drill press, hole placement accuracy can be improved and drill breakage minimized through the use of a "sensitive drilling" or "finger" chuck. Small format, precision high-speed drill presses, ideal for PCB fabrication, are also available from a number of sources.
Regardless of the type of drill press being used, a pressure foot should be employed if available.
If available, position a work lamp on a flexible mount as close to the work surface as possible.
Although more brittle than conventional high speed steel (HSS) drills, tungsten carbide bits designed specifically for PCB drilling will yield far superior hole wall quality. minimize burr formation, and outlast HSS bits almost 10 to 1. The downside is that, with smaller diameters [0.018"(0.46mm) and less], the carbide drills are easier to break and must be handled carefully.
Dry-film Lamination
Printed Circuit Imaging

Developing Photopolymers
Etching techniques
Multilayer Fabrication
Chemical Analysis


Established 1990

On the web 1994

Payment Processing

Edited by Dunwen Zuo, Chuanzhen Huang, Ming Chen, Jun Li and Guo Hun
Pages 223-226
DOI 10.4028/www.scientific.net/AMR.426.223
Citation Xiao Hu Zheng et al., 2012, Advanced Materials Research, 426, 223
Online since January, 2012
Authors Xiao Hu Zheng, Z.Q. Liu, Qing Long An, Ming Chen, Cheng Yong Wang
Keywords Drilling, Feed, Printed Circuit Board, Rotation Speed, Thrust Force
Price US$ 28,-
View full size
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Abstract
Printed circuit board (PCB) composed of glass fiber reinforcement plastic and copper foil is a kind of typical composite material. The cutting process of fiber reinforcement plastic materials such as carbon fiber or glass fiber reinforcement plastic materials have been studied for many years, but the drilling process of printed circuit board using microdrill is more complicated than common carbon fiber reinforcement plastic materials. It is event that the cutting force changed when drill


Clean off the protective coating from the PCB using a PCB rubber or steel wool so that all the copper tracks are bright and shiny. The PCB rubber has grit in it to make it very abrasive.
In fact the coating can be left on and it should melt away around the joints as you solder but you may get better results by removing the coating.
Drill the holes with a 1mm diameter bit. This is easiest with a proper electric PCB drill in a stand, but a hand-held miniature electric drill can be used if you take care to avoid twisting and snapping the small drill bit. Wear safety spectacles.
A hand-drill is not suitable for such small bits unless you are very skilled.
A few may holes may need to be larger, for example preset resistors usually need a 1.5mm diameter hole. It is simplest to re-drill these special holes afterwards.
Check carefully to make sure you find all the holes.
Even with experience it is easy to miss one or two!
WARNING! The small drill bits are fragile. Drill gently but firmly. If you are using a hand-held drill you must take great care to avoid twisting the drill sideways because this will snap the drill bit.
Top of page | Designing | Exposing and Etching | Cleaning and Drilling

Prepare the stacks for drillng
To set up the drill the operator first puts a panel of exit material on the drill bed. This stops the drill tearing the copper foil as it comes through the PCB. Then he loads one or more PCB panels, and a sheet of aluminium entry foil.

Drilling the holes
The drilling machine is computer-controlled. The operator selects the right drill program. This tells the machine which drill to use and the X Y co-ordinates of the holes. Our drills use air-driven spindles which can rotate up to 150,000 revolutions per minute. High speed drilling ensures clean hole walls to provide a secure base for good plating on the hole walls.

Drilling is a slow process as each hole must be drilled individually. So depending on the drill size we drill a stack of one to three PCB panels together. We can drill holes down to 100 microns in diameter. To give you an idea of the size, the diameter of a human hair is about 150 microns. Drill change is fully automatic. The machine selects the drill to use from the drill rack, checks that it is the correct size, and then loads it into the drill head.

Once all the holes are drilled the operator unloads the panels from the drilling machine and discards the entry and exit material.

With over 35 years experience using and selling PCB drills can help you set up your process and shorten your learning curve. We can suggest feeds and speeds parameters for board stack heights based on the materials, board lay-up and equipments capabilities. We can also provide the support materials such as entry and backup material.

Note that we carry an extensive line of drills with extra long flutes used for drilling probe plates or In-Circuit test (ICT) and functional test fixtures or for any project where you need a longer reach tool. We are also able to produce custom diameters and flute lengths to customer specs.

All drills are available with the plastic set rings at no additional charge. Please let us know in the special instruction section when ordering if you do not want them installed.

Please take a moment to view our online inventory and use our secure online ordering system to have your tools shipped to you as soon as tomorrow!


I was sure this was asked before but a forum seach came up with ZIP.

I need to get somthing better to drill PCBs with. What do you use ? How well does it work? Do you break bits?

We have a dremel but some have said there is too much play in the dremel drill press stand to use it with carbide bits. Others say it works fine.
I have found "Milescraft 1097 Rotary Tool Drill Press Stand" for $35 on Amazon.com. It looks similar to the Dremel 220-01 Rotary Tool Work Station $40.

I would rather not spend the money on the MICROLUX 3-SPEED STANDARD DUTY DRILL PRESS $160 + shipping. But if the others are iffy I will.


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THURSDAY, SEPTEMBER 10, 2009

Simple DIY PCB Drilling

The next step in DIY printed circuit board (pcb) fabrication after designing the pcb layout and etching the PCB is drilling the holes. Drilling holes was much easier than I anticipated, probably because I chose the right tools.
PCB DRILLING TOOLS

I needed mini carbide drill bits and a Dremel drill press / workstation or one like it (recommended by one online forum for DIY PCB fabrication).

This information has been condensed from over 20 years' experience of making PCBs, mostly as prototypes of boards to be put into production. If you follow the methods outlined here exactly, you WILL get excellent quality PCBs every time. By all means experiment, but remember that cutting corners can easily reduce quality & waste time.

I will only consider photographic methods in depth - other methods such as transfers, plotting on copper and the various 'iron-on' toner transfer systems are not really suited for fast, repeatable use. Although I've heard some good reports from some toner transfer systems, the problem with these is that the 'expensive part' is the film, and you can't really feed much less than an A5 sheet through a laser printer, so you waste a lot on small PCBs. With photoresist laminate and cheap transparency media, you only use as much of the expensive part (the board) as you need, and offcuts can usually be used later for smaller boards. Double-sided PCBs are also rather tricky with toner-transfer methods.