ceiling fan installation question.

michael_thm

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How would you fix the prefab steel plate on the fan metal plate? The thickness of the plywood is needed so that the screws can fix the fan metal plate to the plywood.
Then u oso have to drill hole on the ceiling for the bolt to go into the base plate mah
The inner 50mm circle is for the wires to pass thru. The inner 4 bolt holes is to secure the steel plate to the base plate. The outer 4 bolt holes is to secure the steel plate to the expansion bolts drilled into the ceiling.

PS. Diagram is wrong in dimensions. Got flaw. the inner 4 bolt holes has to be inside the diameter of the BTO light hole. Meaning shrink the circle to radius 20mm and inner bolt holes 25mm away from center of circle.


 
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Nuvole

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sol1.jpg
 

Nuvole

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The inner 50mm circle is for the wires to pass thru. The inner 4 bolt holes is to secure the steel plate to the base plate. The outer 4 bolt holes is to secure the steel plate to the expansion bolts drilled into the ceiling.

The inner 4 bolt on the ceiling side also must drill hole mah, how else the plate going to flush with ceiling.
 

Alphas

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You may have problem with "inner 4 bolt holes is to secure the steel plate to the base plate". The plywood mount is far easier to fix and more than strong enough for the fan.
 

michael_thm

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The inner 4 bolt on the ceiling side also must drill hole mah, how else the plate going to flush with ceiling.
Modified like this?
Circle cutout is for wire to pass thru.
The 4 holes 30mm from center will be to fix the base plate to the steel plate. The bolts will be tightened to fix the base plate to steel plate before the steel plate is installed on the ceiling with the 4 outer holes for 4x expansion bolts. The inner bolts will fit inside the lighting hole. Workable?

 

michael_thm

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You may have problem with "inner 4 bolt holes is to secure the steel plate to the base plate". The plywood mount is far easier to fix and more than strong enough for the fan.
see new post and advice thanks.
 

Dividends

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Hack a length of thin groove to run the wires and mount the fan beside the hole, then plaster up the hole😢

The groove can be very slim since you can extend the wires with thin ones and hide the thick wires in the hole
Good idea if TS doesn't mind the fan looking very off centre. Otherwise, like most people said, 2 anchor bolts more than enough for a fan, the housing will break before the bolts/nuts break.
 

michael_thm

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Good idea if TS doesn't mind the fan looking very off centre. Otherwise, like most people said, 2 anchor bolts more than enough for a fan, the housing will break before the bolts/nuts break.
Serious tempted... but scared coz got thread complaining ceiling fan fell down...

The groove idea is great too. Except don't have tools for hacking... Best idea except it is the most time consuming and challenging. Sealing the hole risk difficulties later on. Standard drilled holes can just cover with putty and paint over. Easy peasy.
 

Mecisteus

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The new KDK cmi.. china bearing, after few years have noise liao.
Had used Elmark and Fanco.

All noisy after a few years.

That's why this time I try try a cheap brand.

Which brand you recommend ?
 

oddbasket

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Good idea if TS doesn't mind the fan looking very off centre. Otherwise, like most people said, 2 anchor bolts more than enough for a fan, the housing will break before the bolts/nuts break.
Definitely the strong vibration from the fan and after impact drilling, the 1cm thickness will crack eventually, but also 8-10cm off centre is really not very obvious to the naked eye if say is the living room instead of smaller bedroom.
 

oddbasket

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Serious tempted... but scared coz got thread complaining ceiling fan fell down...

The groove idea is great too. Except don't have tools for hacking... Best idea except it is the most time consuming and challenging. Sealing the hole risk difficulties later on. Standard drilled holes can just cover with putty and paint over. Easy peasy.
you just need a very thin and shallow groove which will be hidden by the plate anyway and can be accomplished by dragging your impact drill over the surface

To seal the hole just cut styrofoam or some light material that can stuff and seal the hole tightly then just plaster over it, easy peasy.
 
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