03.05.23 1

Minifix Problems

Level 2.1. Furniture industry manufacturing technologies

The quality and value of furniture is determined by the wide variety of manufacturing methods. In Cause: - The diameter of the drill hole for the housing is too large

1. The drill bit is too large or does not rotate centrically (it wobbles)

The drill bit size doesn’t conform to the metric system (particularly in the USA and England, drill bits in inch sizes are used)

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Minifix problems

Problem: The housing is spread apart when tightened firmly

Cause: The drill hole for the housing is too deep

The bottom of the housing is not supported by the chipboard and expands

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Minifix problems

Problem: The connection is not tightly closed. There is still a gap between the parts.

Cause: The drill hole distance is too small (smaller than 23.5 mm or 33.5 mm)

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Minifix problems

Problem: The housing cannot be turned and stops before "9 o'clock"

Cause: The drill hole distance is too large (larger than 25 or 35mm)

Overtightening may cause the housing to split

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Minifix problems

Problem: The housing drops down at the back during tightening

Cause: The drill hole distance is too large (larger than 25 or 35mm)

The housing is in ideal position (further than 9 o’clock), but still is tightened further with great tightening effort

The chipboard panel is too soft inside (bad quality)

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Minifix problems

Problem: The fitting can be tightened without any noticeable resistance

Cause: The drill hole distance is too small (smaller than 23.5 mm or 33.5 mm)

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Minifix problems

Problem: The housing is difficult to tighten or will not tighten at all. The connection is difficult to open or will not open up at all. The bolt heads are bent or snap off.

Cause: The horizontal drill hole is too deep (off-centre). The tip of the bottom eccentric curve meets the bolt head or just about squeezes in underneath.

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Minifix problems

Problem: The housing is lifted during tightening and is not flush

Cause: The horizontal drill hole is too high (off-centre)

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Minifix problems

Problem: The housing is difficult to tighten or will not tighten at all. The bolt head bends or snaps off. The housing breaks.

Cause: The horizontal drill hole does not run into the centre of the vertical drill hole (viewed from above)

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Minifix problems

Problem: The housing moves towards the front and (or) drops down at the back

Cause: The diameter of the horizontal drill hole is too large. This does not leave enough material around the bolt to withstand the pressure of the housing

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Minifix problems

Problem: The housing cannot be turned or breaks when considerable force is applied

Cause: The bolt is screwed in too far. The housing cannot grip the bolt head The plastic sleeve has been knocked in too far (optional) Overtightening can cause the housing to break The connection may open up due to vibration (during transport), since the

housing cannot be turned to at least 9 o'clock

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Minifix problems

Problem: The bolt is pulled out of the drill hole during tighteningCause: The diameter of the drill hole for the thread is too large

The diameter of the drill hole for the plastic sleeve is too largeThe plastic sleeve has not been glued inBad chipboard quality

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Minifix problems

Problem: The connection is not flush on the outsideCause: The distance from the edge to the centre of the first drill hole is not

consistent with the board thickness (should be ideally half the thickness of the used board)The board does not comply with standard dimensions. It is either thicker or thinner.

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Minifix problems

Problem: The mitre opens outwards, the side panels are not at a right angle

Cause: The diameter of the horizontal drill hole is too large. This causes the bolt to lean against the inside of the drill hole which reduces the drill

hole distance. The reduced drill hole distance can also cause the

housings to come loose.

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Minifix problems

Problem: The mitre does not close tightly and the housings are difficult to turn

Cause: The diameter of the horizontal drill hole is too small. This causes the bolts to jam in the horizontal drill hole. The bolt joint protrudes and the mitre does not close tightly. The

housings break when tightened firmly