Devin Ward: Difference between revisions
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== 9 May 2014 == | == 9 May 2014 == | ||
* Examined stand grinder for serviceability, location in shop made this difficult. Will require assistance moving it. | * Examined stand grinder for serviceability, location in shop made this difficult. Will require assistance moving it. | ||
* Removed existing attempt at hydraulic motor mount. | |||
* More lathe cleanup. Set up compound rest, discovered it was in dire need of maintenance. | * More lathe cleanup. Set up compound rest, discovered it was in dire need of maintenance. | ||
* Performed teardown of lathe carriage, cross slide, and compound rest. Thoroughly cleaned, degreased, dressed, re-lubed, reassembled the compound; cross slide almost completely cleaned, will continue tomorrow. | * Performed teardown of lathe carriage, cross slide, and compound rest. Thoroughly cleaned, degreased, dressed, re-lubed, reassembled the compound; cross slide almost completely cleaned, will continue tomorrow. | ||
| Line 11: | Line 12: | ||
# Myriad scratches, nicks, divots, etc. on bearing surfaces, shims, and screws. | # Myriad scratches, nicks, divots, etc. on bearing surfaces, shims, and screws. | ||
* None of these problems appears to be serious enough to impede getting the lathe running again, but they will have a negative effect on precision operations. | * None of these problems appears to be serious enough to impede getting the lathe running again, but they will have a negative effect on precision operations. | ||
* 3-jaw chuck jaws are stiff in areas as they are closed/opened. I suspect the scroll mechanism is dirty or clogged and will likely require a teardown as well. | |||
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Revision as of 12:51, 10 May 2014
9 May 2014
- Examined stand grinder for serviceability, location in shop made this difficult. Will require assistance moving it.
- Removed existing attempt at hydraulic motor mount.
- More lathe cleanup. Set up compound rest, discovered it was in dire need of maintenance.
- Performed teardown of lathe carriage, cross slide, and compound rest. Thoroughly cleaned, degreased, dressed, re-lubed, reassembled the compound; cross slide almost completely cleaned, will continue tomorrow.
- The scope of the damage to these components is greater than I initially thought (much damage was concealed by dirt, paint, other parts of the machine).
- Underside of compound has a large divot/crack (unable to determine how/from what).
- Compound swivel is pitted and corroded.
- Compound lead screw threads are worn unevenly (not too badly).
- Cross slide shim/set screws are a mess. Looks like someone broke off a set screw and tried to drill a new hole. One set screw hole has a large divot broken out on the inside.
- Cross slide lead screw bearing has been replaced with a homemade part (made of aluminum).
- Myriad scratches, nicks, divots, etc. on bearing surfaces, shims, and screws.
- None of these problems appears to be serious enough to impede getting the lathe running again, but they will have a negative effect on precision operations.
- 3-jaw chuck jaws are stiff in areas as they are closed/opened. I suspect the scroll mechanism is dirty or clogged and will likely require a teardown as well.
8 May 2014
- Design Sprint Google hangout.
- Modeled oxy torch in SolidWorks.
- Developing rough concept for small-scale biogas reactor:
- Run on kitchen waste
- Using two 55-gal plastic barrels, large-diameter pipe, small diameter pipe, valves and assorted connectors (most of this is already on-site)
- Should provide some data and test platform for larger-scale systems and alternate feedstocks
- Preliminary sketches of mounting system for a hydraulic drive system on large lathe in workshop.
- On Marcin's suggestion, searched storage sheds for lathe parts. Found 2 tool posts for lathe, 2 tool holders (1 right-hand, 1 straight), 4-jaw chuck.
7 May 2014
- Scheduled design conference call for 7pm with my contact who is going to work on z-axis controller.
- He thinks the easiest course of action is to reconfigure Lasersaur controller to add back support for z-axis (Lasersaur ignores z-axis).
- Marcin seems to think a second, independent z-axis controller is the best way to go, since we don't want to interfere with using the Lasaur app.
- Sent my rough SolidWorks mock-up of induction furnace design to electrical engineering friend who wants to run COMSOL simulations to help refine design specifications.
- Investigated implementing a load balancer to improve our internet infrastructure on-site.
6 May 2014
- Continued familiarization with Lasersaur manual.
- More team collaboration on CNC Torch Table Project.
- Investigated ultrasonic rangefinder devices for z-axis sensing:
- Cheap USB sensor unit.
- Expensive module; integrated rangefinder and controller.
- Discussed CNC Torch Table project with personal contact who has agreed to assist us with the electronics and programming of an independent Z-axis controller system.
- Researched gas purification techniques for possible use in small-scale biogas reactor.
5 May 2014
- Researched, compiled list of existing open source CNC machine projects, uploaded here: CNC Torch-Router Table 2 - Controller module - Industry Standards.
- Recruited two personal contacts to participate in upcoming design sprint.
- Continued familiarization with Lasersaur manual.