Oscillating Bobbin Sander

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This equipment is safety category 3:

  • Mandatory, in person, instructions.
  • Make sure you read the Wiki before asking.

This equipment is Noise Category 2: Can be used at all hours, but in moderation.
Be considerate; if you feel you need to wear ear protection, then only use the tool between 07:00 and 19:00.

This equipment is should be used with active dust control.
Connect the shopvac prior to use.

Ocbobbsander.jpg
Ocbobbsander-ss.png

Documentation:

  1. https://www.youtube.com/watch?v=1RYAR111Zg8
  2. https://github.com/MakerSpaceLeiden/Manuals/raw/master/Houtbewerking/oscillatingsander.pdf

Algemeen

Bobbin1.gif Bobbin2.gif

The bobbin sander is suitable for most types of woods as wel as other material such as (hard, thermo-harding) plastic glass -- provided that it does not `gum up' the bobbin. As it is to be primarily used for wood - contamination or use with metal is out. (If you do need it for metal; take it to the metal shop and clean the machine extensively afterwards to avoid ruining the next woodmakers work).

This equipment is safety category 4:

  • In-person, instructions strongly advised but not mandatory.
  • Reading, and following, the instructions on the Wiki is mandatory!


This equipment is Noise Category 2: Can be used at all hours, but in moderation.
Be considerate; if you feel you need to wear ear protection, then only use the tool between 07:00 and 19:00.

Opstelling

Make sure that the area around you is clear; and that nothing (including your clothing, hairs or jewelery) an be caught in the rotating parts. Be sure to connect the dust-exaction and either switch it on all the time (manual) or put it on `auto'.

Main rules and instructions

Opmerking vooraf: Het veilig gebruiken van een oscillerende schuurmachine leer je niet door het lezen van de wiki en de handleidingen; maar door goede praktijkinstructie en oefening op de machine. Vraag dus om hulp en instructie wanneer nodig.

  1. Use hearing protection, (safety)glasses and safe clothing.
  2. Leave the machine clean. If it is found not clean; clean it first; or do not use it. The last person to use it is responsible for leaving it fully and completely cleaned.
  3. Don't leave it running unattended.
  4. It is mandatory to report issues, malfunctions, lack of supplies to the mailing list.

Prior to use

  1. Verify that the machine is clean and looks ok.
  2. Make sure it is wired up; and connected to the dust extraction.
  3. Make sure the space around it is free/clean.
  4. Switch the machine shortly on - to check it runs smoothly; without vibration and that the dust extraction comes on.
  5. Check that the sand-paper is not slipping.
  6. Check your material for things like old nails.
  7. Keep listening to the sound of the machine; it should be regular without whining or high pitches.


In case of doubt - check the manual or ASK.

Wat betreft de machine schoon en veilig achterlaten - per algemene makerspace regel is dit altijd de verantwoordelijkheid van de *laatste* gebruiker. Dus als je de troep van een ander niet wil opruimen; meld het dan - en gebruik de machine niet. Zodra je iets gebruikt ben je verantwoordelijk voor het in goede en schone staat achterlaten van de machine; en het melden van storingen of defecten.

Dangers

  1. Hair, loose clothing or similar getting caught and sucked in.
  2. Bits of machinery coming loose and flying around
  3. Dust and splinters in hands & eyes.
  4. Very high temperatures due to rubbing (rather than sanding) and smoldering wood.

Instruction

Instruction is optional - do check the video - or ask on the mailing list if you want someone to show you. This generally takes 10-15 minutes.

Issues and defects to be reported to: deelnemers@makerspaceleiden.nl within 24 hours.

Accidents (i.e. that require first aid or fire extinguishers) are to be reported at bestuur@makerspaceleiden.nl immediately.

Use

See the manual at: https://github.com/MakerSpaceLeiden/Manuals/raw/master/Houtbewerking/oscillatingsander.pdf for full instructions; or the short primer below.

There are two ways to use the machine; with a round bobbin or with a short sanding belt. The first is useful for narrow corners; the latter for edges.

Using the bobbin

Mounting the bobbin 1
  1. Put the yellow plate (1) in the machine;
  2. select a spacer (2) that is a bit larger than the bobbin (3) you are to use. And slide this over the pin.
  3. then slide the bobbin (3) over the pin.
  4. pick the largest washer (4) that still fits.
  5. Then use the knob to tighten it all; the rubber should expand a little to 'grab' the sanding paper.
make sure there is enough space

When selecting the spacer (2) - be sure that there is space around the bobbin; as it will start moving up&down.

Using the sander

  1. Find the belt, tightening knob and the silver coloured washer. Osc-sander-belt.jpg
  2. Mount the sanding belt - checking that the pin on the non-axle side slides into the plastic washer. Osc-pin-belt.jpg
  3. Make sure the belt is all the way down; rotate it a bit until it 'clicks' in place. You should almost see the axis flush with the top. Osc-pin-belt-mounted.jpg
  4. Then mount the washer and tightening knob Osc-pin-belt-flush.jpg

Supplies

Gekocht 2019-1-17:

  1. HBM 6 Delige Schuurdrumset Korrel 80 voor Oscillerende schuurmachine Artikelnummer: 2160 | EAN: 7435125185173
  2. HBM 6 Delige Schuurdrumset Korrel 120 voor Oscillerende schuurmachine Artikelnummer: 2161 | EAN: 7435125185180
  3. HBM 6 Delige Schuurdrumset Korrel 240 voor Oscillerende schuurmachine Artikelnummer: 2162 | EAN: 7435125185197

Stof Afvoerbuis

Volgens de documentatie: The dust exhaust port has an internal diameter of 36 mm and an outside diameter of 39 mm.