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Polishing

Lacquering Machine Polishing - Buffing

After I got tired of it, to polish all the finishes by hand, I wondered, to build a polishing machine itself. This not only saves a lot of time and elbow grease, the surfaces shine professionally ;-)

I see two possibilities here. One is for "times from and to polish", the other for the frequent use. The latter consists of a 750W / 240V motor with 1280 U / min, a belt drive 1: 2, a double-mounted polishing shaft and two cotton polishing wheels. The speed can be described as "cozy". Better is double speed and correspondingly more power. Everything together is mounted on a board and provided with a switch. Of course, the safety regulations must be complied with (accident prevention, electrical safety, etc.)! In this polishing machine I use two slices per side. To get into the tight radii with electric guitars, I like to use a disc on the Borhmaschine. It also reaches a disc in width for very good results. Rotates the disc, it is indeed a bit wider.

Polishing Machine 1 Polishing Machine 2
 

One could of course build the disc itself and trim made of soft cotton cloth, which lasts very long - you need to about 250 discs - Depending on the thickness of the fabric and the disk of course - not really an alternative.

The polishing wheels itself it is essential to pay attention to quality! Not every polishing wheel is equally good - not everything that comes from overseas. This is partly due to the choice of materials and the construction. Polished to stainless steel cutlery or aluminum rims of the motorcycle on glossy Assuming materials other than the sensitive Instrumentenlack.Bekannte materials are: sisal sisal fabric, felt fins, Molton slats, fine nettle, cotton fabric, etc. The material to must be free of seams, soft and at the same time dynamically react to pressure when polishing. Is the tissue very often placed on the radius in wrinkles, it can carry more polishing paste and polishing cloth portion located in the intervention is greater. The resulting oscillation unifies the image polishing and cooling is larger. So you can stay longer in one place, without having the same "burns out".

In my products find their professional discs, as they are also used in very large factories (approx 300mm diameter, 25mm width). Depending on the Drive you get the drill with adapter (01-013-0010 + 01-013-0020), 30mm (01-013-0011) or 19mm (3/4 ") hole (01-013-0010). With a cheap adapter (01-013-0021) can also be operated by drilling down to 12mm.

For hard to reach places (eg. As in electric guitars the horns towards the neck) or for infrequent use, also offers the combination drill / buff. In the pictures below I have the 300mm disc mounted on an adapter. The drill itself should drill holder are mounted in a stable (!). Under normal drill uprights so find large disks often no place, which is why they horizontally mounted standing on top on a workbench addition.

 

 

Use:

The device is intended for polishing high-gloss paints, previously sanded with water sandpaper (600,800,1000,1200). Of course you can also fast times a piece of bone saddle, ebony or rosewood polish it, but if you want to polish a fingerboard with frets so, one makes the slices so dirty that it can no longer suitable for the paint polish, so prefer a buy equal separately if one has before.

To start up the disks must be "trimmed". The fact is that after the first run at rated speed by the centrifugal force a non-uniform polishing surface will occur. If there is a U-shaped or spherical surface, the outstanding pieces of fabric at a standstill (!) Must be cut off with scissors. Only when there is an even contact surface in turn, can start one.
Now, the substance needs to be "pitched". That is, with a special blade (01-013-0022 scratches polishing wheels), the first 1-2mm be dissolved. This is the area that can then accommodate polishing paste. Man keeps the doctor this short time on the contact surface and control the outcome, if necessary repeat.. Then polishing paste is held against the running wheels and you start polishing. Depending Poliervortschritt the polishing paste job is repeated approximately every 2-3 minutes. Hold short against the disc, further polish etc.

A widely used and very good polish for paint instrument is manufactured in Germany by the company Manzerna.

A slice is reserved for pre (01-013-0001 Polierpaste prepolishing (brown)), the other disk for final polishing (01-013-0003 Polierpaste gloss (light beige) and / or 01-013-0005 Polierpaste Superfine). At quite inaccessible places or Touch Up I also use the 01-013-0007 "Manzerna special polishing cream". After sanding is something of the polishing cream on a cotton ball and with a circular motion the bodies concerned are highly polished.

If you the first time ever polished, covered to the entire workshop floor on top with thick foam - (;-))), there is almost happens to everyone that you polished against the running direction, the polishing part eats and thrown out of the hand becomes -(:-(((.

Before the polish really starts, "warmed" to the windows with the squeegee or a piece of wood, which is pressed against the panes in the course. It is best to begin with the floor. Here first polish the outer regions (ringsherumg about 10cm) and then works you look inwards. Like the painting I move the guitar also crosswise. Just at the edge of deposits or in inaccessible places in cutaways you need to be very careful to heat and coat thickness, always check with the hand and eye.

 

If you have a uniform, slightly matt sheen, you can switch to the Endpoliturscheibe and repeats the process.
It has always cautious werdendem printing glossy achieved small scratches appear in dark paints like to the polishing wheels or of the preparation. Just then I use the white, superfine polishing paste on the disc. These small scratches are acceptable and they can also be observed in brand new guitar.

Small scratches on used instruments / pickguards can also remove so that is distributed and rubbed on a very soft rag or cotton for example 01-013-0007 Manzerna special polishing cream.

Precautions:

  • Note the applicable accident prevention regulations
  • Use safety goggles
  • do not wear loose clothing - can come in machine
  • Securing the machine very good, check every now and then!
  • Cover fast moving machine parts due to injury
  • Use safety switches
  • Never polish against the running direction, polishing part can be knocked off!