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Today

karrad added a comment to T8843: bad Z seam in calibration print.

@anolen @logan I had not had a chance to get any of these sliced, I will try to get a couple printed today.

Thu, Aug 22, 9:23 AMRedgum
AOJAS added a comment to T9695: Extrusions and Flatness.

Dataset from a random sampling of 30 out of 6 bundles:
0.02, 0.01, 0.02, 0.07, 0.09, 0.06, 0.02, 0.09, 0.08, 0.06, 0.08, 0.02, 0.02, 0.06, 0.24, 0.08, 0.00, 0.06, 0.06, 0.4, 0.01, 0.07, 0.06, 0.05, 0.01, 0.00, 0.23, 0.02, 0.08, 0.06
Mean: 0.071
Median: 0.06
Mode: 0.06
Minimum: 0.00
Maximum: 0.4
Range: 0.4
Percent fallout of inspection for bends: 10% (3 of 30)
Percentage exceeding supplier's spec tolerance: 0%

Thu, Aug 22, 7:55 AMRedgum, Quiver
AOJAS added a comment to T9695: Extrusions and Flatness.

Updated on data to reflect an additional 216 units inspected after that initial 200 units:
Ct 1 unit: Dented end, mushrooms out
Ct 31 units: 0.44, 0.22, 0.4, 0.22, 0.32, 0.58, 1.06, 0.62, 0.56, 0.58, 0.34, 0.38, 0.42, 0.36, 0.44, 0.3, 1.46, 0.11, 0.95, 0.28, 0.14, 1.46, 0.15, 1.38, 0.32, 0.68, 0.34, 0.42, 0.31, 0.3, 0.36
Mean: 0.51290322580645
Median: 0.38
Mode: 0.44, 0.22, 0.32, 0.58, 0.34, 0.42, 0.36, 0.3, 1.46
Minimum: 0.11
Maximum: 1.46
Range: 1.35
Percent fallout of inspection for bends: 7.4% (31 of 416)
Percentage exceeding supplier's spec tolerance: 2.4% (10 of 416)

Thu, Aug 22, 7:35 AMRedgum, Quiver

Yesterday

anolen added a comment to T8843: bad Z seam in calibration print.

Just in case you need it! 馃槃

Wed, Aug 21, 4:13 PMRedgum
anolen added a comment to T8843: bad Z seam in calibration print.

I did this one as a high speed to save time but I see your earlier images of models have thinner layer heights, I can adjust to thinner layers heights if needed. Just let me know.

Wed, Aug 21, 3:14 PMRedgum
anolen added a comment to T8843: bad Z seam in calibration print.

@logan, Give this one a try: 馃槃

Wed, Aug 21, 3:13 PMRedgum
AOJAS added a comment to T9695: Extrusions and Flatness.

The passing units were released Monday and Tuesday and are being used in production. QC inspections are generally a Go/No Go process, so we collect specific data on non-conforming units, but not on conforming units. Passing units are categorically passed, not evaluated further than having met passing criteria.

Wed, Aug 21, 10:29 AMRedgum, Quiver
kent reassigned T9695: Extrusions and Flatness from kent to cmerot.

Sounds great thanks.

Wed, Aug 21, 10:02 AMRedgum, Quiver
cmerot added a comment to T9695: Extrusions and Flatness.

I spoke with @AOJAS and requested the raw data for the 400 extrusions already measured. This is plenty of data and there is no reason to measure more. I requested the data from @AOJAS. When I get the data, I will do capability analysis for straightness per their specification and per our requirement. Then we can make an informed decision.

Wed, Aug 21, 9:55 AMRedgum, Quiver
AOJAS added a comment to T9695: Extrusions and Flatness.

I got with Levi and the Phil and Dave from framing to show them how to do the check. When unchecked parts are stocked out, they will have someone check the whole batch so that the work of individual framers isn't disrupted. I've left two samples of failing units at their granite surface temporarily so they have a reference for training people to identify the issue.

Wed, Aug 21, 9:28 AMRedgum, Quiver
AOJAS added a comment to T9695: Extrusions and Flatness.

Should we have the Y Assembly station also check their EX-HD0062s for straightness issues? @cmerot
@levi

Wed, Aug 21, 8:58 AMRedgum, Quiver
AOJAS added a comment to T9695: Extrusions and Flatness.

Converting that into metric and applying it to the the length of the EX-HD0086, at 0.3175mm per foot, and the 530mm extrusion being 1.738 feet(20.866 inches), that means that the supplier's tolerance on these is 0.55mm.

Wed, Aug 21, 8:56 AMRedgum, Quiver
cmerot added a comment to T9695: Extrusions and Flatness.

@kent and @AOJAS : We need to keep production running. We can have them verify straightness on the line for now. Please keep them supplied and let Levi know that they need to prescreen for straightness until we resolve this issue.

Wed, Aug 21, 8:55 AMRedgum, Quiver
oliver added a comment to T9695: Extrusions and Flatness.

@kent @AOJAS Here is the specs for the extrusions from In-Position Technologies who odoo says we use as a supplier.

Wed, Aug 21, 8:38 AMRedgum, Quiver
DaniAO added a member for Redgum: bigmansas.
Wed, Aug 21, 8:18 AM
kent added a comment to T9695: Extrusions and Flatness.

Should I release do a partial release for production personnel to do flatness checks on during production tomorrow?

Wed, Aug 21, 8:04 AMRedgum, Quiver

Tue, Aug 20

kent added a comment to T9248: Update lulzbot plaque drawing with material, finish, text..

It's a start, but what I was looking for was to add all the information that a supplier would need to the freecad drawing. That way, its all in one document and consistent with our other drawings.

Tue, Aug 20, 3:18 PMRedgum
west updated subscribers of T9721: test die cast heatsinks.
Tue, Aug 20, 3:16 PMCecropia Silk, Dingy Cutworm(1.2mm), Banded Tiger, Mini-Hibiscus, Quiver, Redgum
west reassigned T9721: test die cast heatsinks from west to adam.
Tue, Aug 20, 2:58 PMCecropia Silk, Dingy Cutworm(1.2mm), Banded Tiger, Mini-Hibiscus, Quiver, Redgum
tutley added a comment to T9252: Make drawing for bed standoff.

@kent those were modeled more so for visual assembly purposes. not to be exact to the true part

Tue, Aug 20, 2:43 PMRedgum
kent added a comment to T9252: Make drawing for bed standoff.

Also, those models didn't match the supplier's drawing.

Tue, Aug 20, 2:42 PMRedgum
kent added a comment to T9252: Make drawing for bed standoff.

I didn't want to have multiple versions of the same part in the repo.

Tue, Aug 20, 2:41 PMRedgum
Steven reassigned T9248: Update lulzbot plaque drawing with material, finish, text. from Steven to kent.

@kent does the drawing that @DRobertson gave above provide the required information?

Tue, Aug 20, 2:31 PMRedgum
Steven reassigned T9252: Make drawing for bed standoff from Steven to kent.

@kent what was the reason for removing the two assemblies? production_parts/assemblies/10mm_leveling_washer_spacer.fcstd
production_parts/assemblies/8x10mm_spacer.fcstd

Tue, Aug 20, 2:29 PMRedgum
logan reassigned T9723: QA updates from logan to oliver.

Any further updates or feedback, push updates to T9723 branch of Redgum/Quiver

Tue, Aug 20, 2:17 PMQuiver, Redgum
logan removed a project from T9723: QA updates: Mini-Hibiscus.
Tue, Aug 20, 2:16 PMQuiver, Redgum
logan added projects to T9723: QA updates: Quiver, Mini-Hibiscus.
Tue, Aug 20, 2:10 PMQuiver, Redgum
logan triaged T9723: QA updates as Normal priority.
Tue, Aug 20, 2:07 PMQuiver, Redgum
tutley added a comment to T9720: Tool head range of motion.

I dont think changing the actuator is going to help much as this is consistently the E1 side. if it were bad actuators we would see a mix between E1 and E2 not moving far enough down. Seems like something with the assembly
@logan i too am wondering how this is being observed and rejected in production.
On the tool heads that are red tagged for this issue are they causing problems with the machine? like not clearing the blower shroud, etc?

Tue, Aug 20, 2:05 PMQuiver
logan updated subscribers of T9720: Tool head range of motion.

This would add some complexity to the test and the test stand, but I imagine we could rig up a mount for a digital indicator to measure that travel. However, determining what that should be and what tolerance that spec would have would take some testing I think.
As far as remedies for the assemblies, a few things come to mind.

  1. Wire routing - if the wires aren't routed correctly they could be preventing the full range of motion
  2. excess drag in Z - we've seen this from a few different causes but with all 4 rods installed and the actuators removed, both sides should move freely from top to bottom.
  3. bad actuator
Tue, Aug 20, 1:49 PMQuiver
west added a comment to T9721: test die cast heatsinks.

I did some thermocouple testing on a regular heatsink and a die cast to see the differences by placing thermocouples in the fins both at the top and bottom. On average they are very similar

Tue, Aug 20, 1:46 PMCecropia Silk, Dingy Cutworm(1.2mm), Banded Tiger, Mini-Hibiscus, Quiver, Redgum
west created T9721: test die cast heatsinks.
Tue, Aug 20, 1:42 PMCecropia Silk, Dingy Cutworm(1.2mm), Banded Tiger, Mini-Hibiscus, Quiver, Redgum
MichaelM triaged T9720: Tool head range of motion as High priority.
Tue, Aug 20, 1:31 PMQuiver
kent added a comment to T9703: e3d V6 nozzle drawing v8.1.

This is the v8 version of the drawing. The 150 micron nozzles no longer have a question mark after the length of the orifice which is nice. There are a couple additional radius callouts, and the angle of the outside cone is called out.

Tue, Aug 20, 1:28 PMAngelfish, Yellowfin, Dingy Cutworm(1.2mm), Cecropia Silk, Banded Tiger, Achemon Sphinx, Quiver, Finch, Mini-Hibiscus, Redgum
anolen added a comment to T8843: bad Z seam in calibration print.

@kent, Ill give that a try.

Tue, Aug 20, 11:15 AMRedgum
west added a comment to T9470: Increased X Carriage drag w/ rear tool head mounting fastener tightened.

@logan I think so if it helps the situation

Tue, Aug 20, 11:08 AMRedgum
logan added a comment to T9470: Increased X Carriage drag w/ rear tool head mounting fastener tightened.

@west Do you think we could do with a 3in*lbs torque spec vs 5in*lbs?

Tue, Aug 20, 11:05 AMRedgum
kent added a comment to T8843: bad Z seam in calibration print.

There is a setting called outer wall wipe distance which is set to .25mm. This inserts a travel move at the end of the outer wall that might be contributing to this artifact.

Tue, Aug 20, 10:51 AMRedgum
logan added a comment to T8843: bad Z seam in calibration print.

My thought process is that there isn't a big ol gap in the model, so we should be able to print it without one.
Have you tried a different wall printing order? I think those would both be treated as outer walls.

Tue, Aug 20, 10:46 AMRedgum
logan closed T7964: Insert jigs - redgum specific as Resolved.

@david.hall Since I haven't had any requests and we've moved past the development stage I'm going to go ahead and close this ticket. If anything arises please feel free to open a new ticket.

Tue, Aug 20, 10:44 AMRedgum
anolen added a comment to T8843: bad Z seam in calibration print.

I improved what I could (image posted earlier in ticket). What quality are we trying to achieve? Do we have a better print to compare to?

Tue, Aug 20, 10:44 AMRedgum
logan added a comment to T8843: bad Z seam in calibration print.

No I haven't been working on it, I already tried everything I could think of

Tue, Aug 20, 10:11 AMRedgum
anolen added a comment to T8843: bad Z seam in calibration print.

@logan, any updates here?

Tue, Aug 20, 10:10 AMRedgum
kent triaged T9717: rev2 e3d thermistor drawing as Normal priority.
Tue, Aug 20, 10:07 AMYellowfin, Dingy Cutworm(1.2mm), Banded Tiger, Cecropia Silk, Angelfish, Finch, Mini-Hibiscus, Quiver, Redgum
kent triaged T9712: e3d somestruder retention plate drawing as Normal priority.
Tue, Aug 20, 9:54 AMTAZ 6
kent triaged T9711: e3d e heater drawing as Normal priority.
Tue, Aug 20, 9:51 AMMini-Hibiscus, Dingy Cutworm(1.2mm), Banded Tiger, Cecropia Silk, Angelfish, Finch, Quiver, Redgum
kent triaged T9710: e3d Titan aero sink drawing as Normal priority.
Tue, Aug 20, 9:49 AMDingy Cutworm(1.2mm), Banded Tiger, Cecropia Silk, Angelfish, Finch, Mini-Hibiscus, Quiver, Redgum
kent triaged T9709: e3d large gear as Normal priority.
Tue, Aug 20, 9:47 AMDingy Cutworm(1.2mm), Banded Tiger, Cecropia Silk, Angelfish, Finch, Mini-Hibiscus, Quiver, Redgum
kent updated the task description for T9708: e3d titan pinon gear drawing.
Tue, Aug 20, 9:44 AMDingy Cutworm(1.2mm), Banded Tiger, Cecropia Silk, Angelfish, Finch, Mini-Hibiscus, Quiver, Yellowfin, Redgum
kent triaged T9708: e3d titan pinon gear drawing as Normal priority.
Tue, Aug 20, 9:43 AMDingy Cutworm(1.2mm), Banded Tiger, Cecropia Silk, Angelfish, Finch, Mini-Hibiscus, Quiver, Yellowfin, Redgum