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mLine 289:
Line 289: − === Authorization info ===+ − − ==== Usage ==== − ==== Safety ====+ − ===== Operation =====+ Line 303:
Line 301: − ===== Work holding =====+ Line 322:
Line 320: − ===== Health =====+ Line 338:
Line 336: − ==== Grinding wheel ====+
Boyer Schultz 6-12 Surface Grinder (view source)
Revision as of 21:16, 8 August 2018
, 21:16, 8 August 2018→Auth/Use Notes: further reorganize
Danger Committee: [[User:Jim|Jim Brink]] & [[User:mct|McTavish McArdle]]
Danger Committee: [[User:Jim|Jim Brink]] & [[User:mct|McTavish McArdle]]
=== Usage ===
* [https://www.youtube.com/watch?v=jtB_jtH__F0 "How to grind fast and accurate"]
* [https://www.youtube.com/watch?v=jtB_jtH__F0 "How to grind fast and accurate"]
* [https://www.youtube.com/watch?v=iMHksf17oqE&t=478s Square a part]
* [https://www.youtube.com/watch?v=iMHksf17oqE&t=478s Square a part]
=== Safety ===
==== Operation ====
* The magnetic chuck should never be turned off when the wheel is spinning: if, for some reason, the wheel comes in contact with a part when the chuck is off, it could kick it out, possibly hitting something or someone (at best), or causing a wheel explosion
* The magnetic chuck should never be turned off when the wheel is spinning: if, for some reason, the wheel comes in contact with a part when the chuck is off, it could kick it out, possibly hitting something or someone (at best), or causing a wheel explosion
* The spindle should never be turned on unless the wheel cover is fitted into place: if the wheel explodes when the cover is not fitted, nothing will protect you from the fragments
* The spindle should never be turned on unless the wheel cover is fitted into place: if the wheel explodes when the cover is not fitted, nothing will protect you from the fragments
** If the table exceeds its horizontal travel, it will hop off its ways, which can potentially cause a wheel crash
** If the table exceeds its horizontal travel, it will hop off its ways, which can potentially cause a wheel crash
==== Work holding ====
* Preparation
* Preparation
** Stone parts & workholding fixtures (e.g. the magnetic chuck, a grinding vice) every time the setup is changed (e.g. when a part is removed from the magnetic chuck for measuring)
** Stone parts & workholding fixtures (e.g. the magnetic chuck, a grinding vice) every time the setup is changed (e.g. when a part is removed from the magnetic chuck for measuring)
** Parts made of any other material need to be held using additional workholding fixtures (e.g. a grinding vice) which are themselves held by the magnetic chuck
** Parts made of any other material need to be held using additional workholding fixtures (e.g. a grinding vice) which are themselves held by the magnetic chuck
==== Health ====
* Dust / grit collection should always be turned on, because you do not want to breathe it
* Dust / grit collection should always be turned on, because you do not want to breathe it
* The operator should never put their hand (or any other body part) anywhere near the wheel when it's spinning
* The operator should never put their hand (or any other body part) anywhere near the wheel when it's spinning
* Magnetic chuck
* Magnetic chuck
=== Grinding wheel ===
* ID, Grit,hardness, composition
* ID, Grit,hardness, composition
** [https://www.youtube.com/watch?v=MofRhM_W-Vk Fundamentals]
** [https://www.youtube.com/watch?v=MofRhM_W-Vk Fundamentals]