We will need a customer facing installation OHAI for this tool head.
So, to make this more manageable and keep the same high level of quality, MER will write up instructions all the way through from install to first print finishing with adjusting z offset to get the perfect first layer. Marketing (or a designated substitute) will take photos and screen grabs to illustrate the OHAI steps.
Please let me know if one of these things is going to cause trouble in the time we have left to get this finished.
@adam quick process question, shouldn't the OHAI be done by now since beta units have been distributed?
@kenhara good question about process. As far as I'm aware we've always used beta products to create the OHAIs - this is especially true of production OHAIs due to part changes. I think in general the people around the building we hand betas to for testing know enough to need less than a full OHAI to get running, but that could be something to think about for Banded and Dingy.
We need the flashing firmware and first print steps in cura LE.
The skirt measurement seems really thick - the nozzle is only 0.25mm we shouldn't be laying down layers thicker than 0.2mm.
We will probably need to expand step 10 the firmware flashing. Also need Cura LE control directions for step 11 I assume. Still missing first print directions - not sure if that's something that marketing or tech support would like to put together. The dual v3 directions are very good and we could probably start by copy pasting those directions and making relevant changes.
@nathan looks good - I'd probably pull out the note about z-offset. Let's keep all of that at the end with the z offset directions. Probably just have them print the first layer of the rocktomech while adjusting z offset to get the ideal squish.
Maybe even separate the z offset stuff with a subheading or something; perhaps give them the done option but also have "Are you having trouble with your first layer/bed adhesion?" instead of just "take me home"?
I can have screenshots ready today or tomorrow. Do we want to take the installation shots with a white background as well or are we going to be using the existing installation shots here?
I would prefer a white background to match the OHAIs for dual v3 and the aero v1s, but I will leave that up to you and Michael's bandwidth. If you need to focus your attention elsewhere we can make the ones we already have work for now.
edit: we would need to update to nicer photos eventually so it might be better to release it clean the first time.
That sounds good. MC and Gregg are out tomorrow so I'll have the studio all to myself and should have time to retake shots. I am running 3.2.25 Cura as well, so I'll shoot for having this all wrapped up and ready tomorrow.
Photos with white background and screenshots have been completed and are ready to be put in the OHAI. It's too many files to post here so I can direct others to them or move them to a better location as needed.
We may also want to include a shut off and unplug the printer step before we remove the toolhead just to be safe (photo has been taken for this already).
Under gather materials we should also include a 2.5mm hex key that is needed to change the toolhead.
We should also include a link to the first print, located here: http://download.lulzbot.com/3D_Models/Rocktomek/
Here's the install ohai with some formatting changes, updated screenshots, and retail shot images.
Note: We'll have a photograph of the first print on Monday: T3551
The very last picture seems a bit unprofessional to me. There is a lot of gunk in the middle, which shouldn't happen. The image is also unfocused for the majority of it, and only focused on a bit of the skirt.
This is just for recording the issue. From TS chat, we are working on getting a better one now.
Looks good from here, but I was hoping to get a picture zoomed in enough to show the proper amount of squish. If we can't get that close, this certainly looks much better than the one we have in the OHAI currently.
@Orias Just went over this and here are my thoughts:
13: I would add to 13C "The "Update EEPROM" box should be checked automatically."
14C: This one is a little tricky, we recently found out that Ngen was being left in our new toolheads (including a lot of the Microstruders) instead of PLA, which could lead to issues when trying to take out this filament. See 15D below for possible addition to address this. See T3548 for further info on the Ngen.
15A: "temperature of _205" appears to be a typo, should be just 205?
15D: Due to the possibility of Ngen filament in the toolhead we may want to add the following as 15D: "If the toolhead is having difficulties retracting you can turn the temperature up to 220c and perform steps 15A and 15B again. Make sure not to raise the temperature above 230 however, as PLA can expand and harden at higher temperatures." 220 should be good to remove Ngen or PLA.
Looks like we forgot to include a "Level X axis" command before the print (our bad those instructions were from TSR). I think the best place to add it would be as 16D although it could go in a lot of places.
16D: "To get the printer ready for a print we will want to level the X axis. Press Level X Axis and then let the Mini 2 complete the procedure before moving on to step 17." Or something along those lines. Attached are some screen shots you can use, I don't think I got the box color right.
Otherwise looks great. I think the adhesion tuning is very well done and I like the Filament loading tip.
I'm going to do some testing, but 210 feels too low to me for Ngen. I think the main issue with telling customers 210 or 220 for PLA is I don't want them to think that is a good PLA print temperature. Depends on how we say it.
15A: updated to 220
Went with this to avoid having to explain any confusion:
Type 220 into the Select temperature field.
15: Added a general note about switching between materials:
Note: Always heat the hot end to extrusion temperature before attempting to remove filament. If switching between different material types, set the hot end to the approximate average extrusion temperature of the two materials.
16D: Added, and thanks for including the source file!
I'm a bit worried about leaving the OHAI at 220 for the long run - that works with the ones we have in stock that we think are nGen, but we are getting the testing procedures fixed and will be using PLA on all new builds going forward. Would it make more sense to leave it at 205 and address problems as they come in or do we want to make a maintenance ticket to revise the instructions after we have sold through most of our current inventory?
Edit: I do like the helpful note about halfway temps for different materials
@adam I think it depends on a lot of things. I don't have a good idea of how many toolheads have Ngen in them, how many toolheads were built before the switch to PLA. If we did have users take out Ngen at 205 I think it would be okay. I've been doing some tests on my Micro by feeding in Ngen, letting it cool, then trying to do the filament swap procedure at 205. The Ngen has come out fine, but it's hard to replicate the results less experienced users will have.
I don't like that step 14 expressly says that there is PLA in the toolhead when we know it might not be. But I think this is fine if we don't want to change it.
Attached are images for the first print as well as another shot of the skirt that shows the layer height a little better. The first layer height is tricky to capture (this shot is better than my naked eye can see honestly) but this shows what the customer is looking for more effectively.
love that squish pic! I'm sure many of our customers have magnifying glasses they can use to verify their squish. If they don't have them, they should get some to really appreciate printing with Achemon