Disc Grinder Introduction: Difference between revisions

Latest revision as of 20:28, 8 May 2024

This is the content required for an introduction to our disc grinders - reading this does NOT replace the mandatory session with a tutor! It will make it a lot quicker though ;-)

If you need this introduction, please reach out to the following tutors: Lukas, Patrick, Luzian, Johannes

Let's begin! First off, make sure you have read the machine's manual, if available (should be linked from its InfoBox).

Safety

Personal protection:

Breathing protection might also help depending on your material, but unless it can filter fumes you should always take care of sufficient ventilation.^[1]

Dangers	Precautions
generation of hot sparks that are expelled in varying directions	wear goggles AND a face shield to protect your eyes never use it without the blade guard understand the spark direction, which will always be tangential to the point of the disc that is in contact with the workpiece coordinate your activity with others in the area do not attempt to vacuum up sparks! The dust collection bag could catch fire
sparks fly very far and deposit themselves as fine dust metal fumes and fine dust can be a health hazard when inhaled^[2]	take care of sufficient ventilation and/or wear a fume-filtering respirator when working with a grinder
the workpiece heats up and stays hot for a while	wear suitable gloves to prevent burns from sparks or the workpiece
possible kickback if the disc gets caught on the material	put the workpiece in a vise or clamp it down during grinding hold the machine firmly with both hands, one-handed operation causes 40% of all accidents^[3] try not to shift the disc during a (deep) cut let the disc get to full speed before you start grinding
aluminum and other non-ferrous metals (DE: Nichteisenmetalle) can clog regular abrasive discs and cause them to overheat until they break/"explode"	do NOT use generic "metal" discs on aluminum! You will need to buy specialized aluminum cutting discs or accomplish your task with a more suitable tool.
a disc that is off-center or loose is very dangerous	after inserting a new disc, let it run freely for a minute and make sure it runs safe and true

Changing Discs

Please avoid overtightening the nut holding the disc in place! It should only be tightened softly by hand but may be loosened with the associated "pin" wrench if necessary. The direction of the motor's rotation is enough to tighten the nut to the appropriate degree.

@@ Line 1: / Line 1: @@
-This is the content required for an introduction to our [[Disc Grinders|disc grinders]] - '''reading this does NOT replace the mandatory session with a [[tutor]]!''' It will make it a lot quicker though ;-)
+This is the content required for an introduction to our [[Introduction for::Disc Grinders|disc grinders]] - '''reading this does NOT replace the mandatory session with a [[tutor]]!''' It will make it a lot quicker though ;-)
+If you need this introduction, please reach out to the following tutors: [[Tutor::User:Lukas|Lukas]], [[Tutor::User:Pakue|Patrick]], [[Tutor::User:Luzian|Luzian]], [[Tutor::User:Johannes|Johannes]]
 Let's begin! First off, make sure you have read the machine's manual, if available (should be linked from its InfoBox).
 == Safety ==
-=== Dangers ===
+[[PPE|Personal protection]]: [[File:Protection - goggles.svg|50px]] [[File:Protection - face shield.svg|50px]] [[File:Protection - hearing.svg|50px]] [[File:Protection - gloves.svg|50px]]
-* generation of hot sparks that are expelled in varying directions
-* sparks fly very far and deposit themselves as fine dust
+''[[Breathing Protection|Breathing protection]] might also help depending on your material, but unless it can filter fumes you should always take care of sufficient ventilation.''<sup> [https://www.bghm.de/arbeitsschuetzer/praxishilfen/arbeitsschutz-kompakt/074-winkelschleifer/]</sup>
-* the workpiece heats up and stays hot for a while
-* the Kingcraft grinder has no prevention of turning on after loss & restoration of power ''(keine Anlaufsicherung)''
-* the disc can get stuck if it is shifted while deep in a cut
-* metal dust can be a health hazard when inhaled
-=== Precautions ===
+{| class="wikitable"
+|-
+! Dangers !! Precautions
+|-
+| generation of hot sparks that are expelled in varying directions ||
 * wear [[goggles]] AND a [[Face Shields|face shield]] to protect your eyes
-* wear [[Ear Defenders|ear defenders]]
+* never use it without the blade guard
-* wear a proper breathing mask when working with a grinder
+* understand the spark direction, which will always be tangential to the point of the disc that is in contact with the workpiece
 * coordinate your activity with others in the area
-* understand the spark direction, which will always be tangential to the point of the disc that is in contact with the workpiece
+* do not attempt to vacuum up sparks! The dust collection bag could catch fire
-* wear suitable [[gloves]] to prevent burns from sparks or the workpiece
+|-
+| sparks fly very far and deposit themselves as fine dust
+* metal fumes and fine dust can be a health hazard when inhaled<sup> [https://en.wikipedia.org/wiki/Metal_fume_fever]</sup>
+||
+take care of sufficient ventilation and/or wear a fume-filtering [[respirator]] when working with a grinder
+|-
+| [[File:Danger_-_heat.svg|left|50px]] the workpiece heats up and stays hot for a while || wear suitable [[gloves]] to prevent burns from sparks or the workpiece
+|-
+| possible kickback if the disc gets caught on the material ||
 * put the workpiece in a [[vise]] or [[clamp]] it down during grinding
-* if the power has been lost for whatever reason, always return the power button to the "off" position before restoring it!
+* hold the machine firmly with '''both hands''', one-handed operation causes 40% of all accidents<sup> [https://www.bghm.de/arbeitsschuetzer/praxishilfen/arbeitsschutz-kompakt/074-winkelschleifer/]</sup>
-* be prepared for kickback
+* try not to shift the disc during a (deep) cut
-* do not attempt to vacuum up sparks! The dust collection bag could catch fire
+* let the disc get to full speed before you start grinding
+|-
+| [[aluminum]] and other non-ferrous metals ''(DE: Nichteisenmetalle)'' can clog regular abrasive discs and cause them to overheat until they break/"explode" ||  do NOT use generic "metal" discs on aluminum! You will need to buy specialized aluminum cutting discs or accomplish your task with a more suitable tool.
+|-
+| a disc that is off-center or loose is very dangerous ||  after inserting a new disc, let it run freely for a minute and make sure it runs safe and true
+|}
+== Changing Discs ==
+Please avoid overtightening the nut holding the disc in place! It should only be '''tightened softly by hand''' but may be '''loosened with the associated "pin" wrench''' if necessary. The direction of the motor's rotation is enough to tighten the nut to the appropriate degree.
 == Suggested Reading ==