Difference between revisions of "Equipment/RJH Tool Grinder"

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= RJH Tool Grinder =
 
  
 
This is a dedicated tool grinder intended for removing small amounts of material to shape heat-sensitive steel cutting tools to specific geometry. It is not a general-purpose metal shaping and grinding tool - the regular bench grinder (on the opposite side of the cage) is a much better tool for this purpose.
 
This is a dedicated tool grinder intended for removing small amounts of material to shape heat-sensitive steel cutting tools to specific geometry. It is not a general-purpose metal shaping and grinding tool - the regular bench grinder (on the opposite side of the cage) is a much better tool for this purpose.

Revision as of 22:17, 21 December 2021

RJH Tool Grinder
File:Tbc
Sub-category Metalworking
Status Operational
Last updated 2 September 2024 08:21:57
Training requirement Yes (Included with Lathe)
ACnode not directly (via access to tool room which is granted once you have either Lathe or Mill authorisations)
Owner LHS
Origin Pledge
Location Ground Floor, Cage
Maintainers Machine Shop Team

This is a dedicated tool grinder intended for removing small amounts of material to shape heat-sensitive steel cutting tools to specific geometry. It is not a general-purpose metal shaping and grinding tool - the regular bench grinder (on the opposite side of the cage) is a much better tool for this purpose.

Training is required for this tool it will be included in lathe training. It is powered via a 16A plug, the extension lead for which is kept in the metal shop toolroom (which is ACNoded) - please do not attempt to use this grinder if you do not have access to the toolroom

Note that this grinder must be used with a coolant - a separate bottle is located next to the machine which must be tipped into the sump of the grinder before operating. The coolant must be drained out between uses - we are planning to install some kind of drain cock at the base of the sump, but for now please just bail it out with a jug or something. Note that this coolant is topped up from the same bottle of oil used for the mill and lathe but once used on the grinder, this coolant will be contaminated with abrasive sludge that will damage other tools so please keep the used coolant separate.

Accessory - Wheel Dressing Tool

There is a wheel dressing tool kept in the metal shop toolroom. This should be used periodically to straighten the face of the wheel and clear out any debris. To use it, extend the dressing tip as little as possible from the jig then run side to side along the tool slot to dress the wheel. Do not remove more wheel than necessary or dress too often as this will reduce the life of the wheel

Accessory - Angle Setting Jig

We have partially constructed an angle-setting jig which can be used to hold tools at a specified angle and control the depth of cut. (also kept in toolroom). The angle-setting features are currently usable but it requires fitting with some feed screws to control the depth of cut before it will be fully functional - will update the wiki once this is the case