Monday, 9 June 2014

Facom Micro-Tech Screwdriver Tool Holder Project

With a of fresh delivery of Facom Micro-Tech Screwdrivers, I decided it was time for some workbench organisation in the form of a tool holder, inspired by Werner Berry.

Having used a set of Facom Micro-Tech screwdrivers since the 90's, I though it was time to fill some of the gaps with a few common Hex and Torx drivers.

 After some deliberation,  the following sizes were ordered from Premier Farnell / Element14, as they seem to stock most of Facom's range.

Hex Head
84E.1,5X35  Yellow  1,5mm Hex
84E.2X75     Green    2,0mm  Hex
84E.2,5X75  Indigo    2,5mm Hex

Torx Head
AEX.5X35   Green  T5 Torx
AEX.6X35   Indigo  T6 Torx
AEX.8X75   Pink     T8 Torx
AEX.10X75 Plum    T10 Torx

Slot Head
AE.1.5x35               1.5mm  
AE.1x35                  1mm    
Philips  & Pozi Heads
AEFP.000X35 Pink     PH.000
AEFP.00X75  Purple   PH.00
AEFD.0X75   Orange  PZ.0

The top and sides were designed in Eagle PCB and exported as DXF files then loaded into BobCad. Even though the parts would be made manually, it can be useful to load the files into a 3D package for a visual inspection and to get a feel for the design.

The holes in the top plate are drilled with a 10 Degree angle.

In order to drill at the correct angle I made a quick angle table for the drill press, also known as a Sine table in the machinist world. It doesn't have to be anything special, I made this out of scraps of chip board, two hinges, two adjustable feet with captive nuts to alter and maintain the chosen angle.

Having used the make shift Sine table, even in this simple form, I shall probably make a more professional version for future use.

There is a trick to drilling holes at an angle on a drill press... you have to keep in mind a drill press is not a milling machine! (where side play, run out, is a non- issue) Drill press bearings are general designed for thrust type operations, not side forces. When the angled drill bit hits the work piece, the drill and shaft will want to push away due to the uneven and small point of contact. At least until it drills itself level with the drill centre, at which point drilling is as normal.

 In order to maintain even spacing allowing for the run out of drilling at an angle, I made a drill template with a grid of all the hole centres. The line on the front edge of the wooden fence is an index mark, which is in line with the centre of the chuck. The horizontal centre is set for each line using a visual aid, such as a small drill bit, the template centre line is moved to the index mark after each hole is drilled. No pilot holes were used, only the finished drill bit size.

When bringing the drill bit down to make contact with the work piece, do so very lightly and slowly at first until, you have milled a flat on the work surface.

Overall, I am very pleased with the finished tool holder! Now all my most used tools are always tidy, and to hand.


The right side of the tool holder was reserved for Hakko soldering iron tips, Tweezers and my "ENGINEER SS-02" solder sucker