Tue, Dec 3
Mon, Dec 2
We will let the new marketing department decide if we need anything on this.
Oct 10 2019
would've been nice
This was actually solved by checking drag specs in finals.
Could not figure this out.
Sep 20 2019
These BoM's have been updated.
Sep 13 2019
This is now merged into master for kangaroo paw so I've removed the tag. @DaniAO assigning this over to you for the hibiscus change order.
Sep 10 2019
@tutley Sweet, I will get these pushed. Thanks!
@david.hall Sorry, I meant ready to merge for Bio. For Hibiscus this is going through change order.
Once I push these files to cluster I will let you know, no part number changes from what was created before for T3450
OHAI updates for Hibiscus will be done when that is assigned as a deliverable on the change order. Bio OHAI will likely start getting filled out next week.
@logan i had no issues installing these
@logan let us know if you push this to Cluster, so that we can identify the part on our board and make a place for reserve. Inventory will have to make a location for it also. I assume that it will be a part number change? We will have to check back stock and see when you want to roll in on the production floor. Also and updated OHAI?
This branch (T9909) contains the model files for the new Bed Corners v2.2.4 (PP-GP0477)
@tutley Any issues with install?
Sep 6 2019
These are installed on all 7x machines here in R&D
Sep 4 2019
Missing cut and strip length tolerances. There is a tolerance table on the heater cartridges, but no electrical tolerances on this drawing. Could use more detail on the inside of the cartridge, potting material, installation depth, length of insulation inside the cartridge.
Same thing here, probably want to make heater and thermistor holes unilateral with -0 to make sure we don't run into any heater or sensor fitment interference.
Looks pretty good, only feedback is that it does not specify RoHS compliance.
Probably want the ID of the gear to be a unilateral tolerance with +0 to ensure good grip on the hobb knurled section.
Probably want to make that 5mm callout on the ends a unilateral tolerance to avoid interference where it goes into the bearing. More detail on the hobbgoblin profile and especially the knurling major diameter spec since that gets pressed into the titan large gear (we saw an issue with this on the v3 gear hobb setup).
The tolerance block doesn't cover the 9.000 hole where the bearing goes, we will probably want to set that as a unilateral tolerance so that we don't run into interference with the bearing.
Also no tolerances on dimensional callouts here.
Not seeing any tolerances on this drawing.
I received 100 of the black oxide screws listed above and they work with the die cast heatsink
Sep 3 2019
Sure thing, provided the test slice is good I will have 7 sets to send you, should be done today and over to you by tomorrow
sounds good! can you send 7x sets to rockies to update the 3 prototype units and the 4x alpha units here?
@logan any updates?
@zachah It seems with the jig we are also able to get the skirt within the old spec as well.
Update on this from my testing as well. On Friday I was also able to get three additional red tag printers to have passing skirts with the shims. (0.380-0.498) (0.375-0.446) (0.349-0.434)
Aug 30 2019
@tutley those dont appear to be the correct versions. The latest versions that I can find from commit history are:
PP-GP0349 - X Belt Mount v0.6
PP-GP0350 - Y Belt Mount v6.1
PP-GP0351 - Adjustable belt tensioner v2.2
This is from the old ticket so there are already existing slices for this
Since some nozzles are unable to touch the bed in some cases, once we confirm this on more machines, we should get a change order in to adjust the y ends to add ~1mm to the mounting face. This will shift the y axis assembly up 1mm and should give us the additional room for the bed leveling compensation to do its job.
The Z home position of the nozzle is currently at 183mm above the glass, so a 1mm change will allow us to still print 180mm tall and be able to lift and move the hotend away from a full z build height print
Update on the first test: After adjusting the z offset I was able to get a passing skirt (approx. 0.35mm to 0.49mm) on a machine that could not get a passing skirt before.
Aug 29 2019
Glad I asked, those look sweet!
Them being black definitely reinforces wanting black screws.
@west just for my own curiosity do you have any pics of the die cast heat sinks?
I don't see any issue with using those, I think it will look better than the silver ones. Lets do it!
E3D can't drill and tap those holes right away and if they do set up for that the cost savings will be minimal from the milled heat sinks.
@west found some self-tapping screws that should blend better than the stainless steel: https://www.mcmaster.com/90935A135
We are still looking at a new screw with a phillips head instead of a hex.
Aug 28 2019
@kent thanks, this is now merged into master.
Aug 26 2019
@oliver also took a look at the gap measurement data that we had and determined the size of the slots on the latest rev of parts should work well with the distribution of belt thicknesses that we receive. So I agree that this is ready to move forward and should be implemented in time for kpaw production.
these parts worked pretty well and were about to be rolled into production, however the assemblers at the time had just gotten used to the current method and it was deemed a "wont fix" because it would take them time to learn a new method which would then slow down production.
I think there is probably room for improvement on these parts but they have been installed on all of Fpod in cluster plus some machines around the building and as far as i know none of them have had the belts loosen up or anything. So these could probably be rolled into production as is
after talking with Christian, We would like to get this done and kranagroo paw and then will Roll it into Mini 2.
@logan, they dont tap the holes for the fan for us. We are essentially wedging the screw between the fins. With the new heatsink, the holes no longer align with gaps between the fins, there are untapped posts.
The plan is to roll this new heatsink in on all aero toolheads. @adam do you know the saving going to the new heatsink?
@west They currently tap those locations for us in the machined heat sinks right? Is there concerns with doing so for the die cast ones?
Ultimately, socket cap hex heads are sturdier and the self tapping screws are Phillips if I remember correctly. The aesthetic appearance will change due to the color of the fastener also. This would require stocking a different fastener as well.
Would this heat sink change apply to all Aero hotends?
Aug 22 2019
Aug 21 2019
@tutley Mini 2 calibration will be printing these along side the current octopus calibration and evaluating the octopus for any issues to see how those issues translate to the new file. We will be bagging both the octopus and the new calibration print in the same bag and labeling it with the serial number, date, and the name of the calibrator. Any issues with the octopus will also be included on the tag. This will continue on for approximately 2 weeks where we should be able to attain over a hundred points of data.
Aug 20 2019
@tutley I have a slice created that is around 55 min to print. I'm going to talk to calibration about be on the look out for each of the issues so we can get some testing done to see how well this print will be able to show these issues. Possibly working with cluster as well will be beneficial.
Works for me.
I'm going to close this ticket out as I'm not certain there was ever clarification of the requirement for it. Feel free to reopen with more info or make a new ticket.
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
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.