A place to track all things related to the LulzBot TAZ 6
Wed, Jul 31
Tue, Jul 30
Mon, Jul 22
Jul 15 2019
I am currently going back through the instances of failures listed above in a bit more detail and thus far I have found at least 1 additional issue that I listed that upon closer inspection looks to not actually a RAMBo issue. I wasn't able to get through everything today so I will have to finish and update this on Friday when I am back in. I just wanted to update to make sure that people knew it is still on my radar and I should have things better situated on this ticket on Friday. Sorry for the delay!
@TyTh good on ya
I have already set up an RMA to send him the new one-piece as well.
Since he's seeing the exact same issue as before the RAMBo was swapped, has everything else been checked? Specifically the internal and external bed power harness that @kent suggested checking in the ticket, which is a common failure point. If that hasn't been checked you should consider sending the new one-piece version along with the RAMBo.
This is the customer from ticket ID 81753, mentioned above
A customer is talking about this on social media. Referred to Ty to get more info and resolve his issue.
Jul 12 2019
Nevermind, I now see that it is a TAZ 5 so that wouldn't be as straightforward. Disregard
@Galadriel Ouch! Missing 90% of the LCD header. Have you suggested upgrading to 1.4? I'd send them the harnesses free of charge at this point given their trouble, personally.
@kent @mjpelletier @Steven New one to add to this list, ticket ID 207,731. Customer bought a new 1.3L RAMBo from us and it came with pins missing, based on photos looks like the pins were never installed. Reference for purchase of board: SO103180.
We will be sending customer replacement board, would you like us to get this one back so we can check so serial number on the board or anything?
@kent Here is a list of RMA's that resulted in either a printer coming back or a board being sent out:
Jul 11 2019
I have another customer (ticket ID 81753) with a failed RAMBo after a week of installing.
Jul 10 2019
@kent will do
@Galadriel can you make a list of RMA's that resulted from these RAMBo issues and post it here? @MikeR @bigmansas @oliver @zachah @logan @EricNugent @franklin if you repair one of these RMA's hang on to the boards so we can give it to @mjpelletier and he can do some failure analysis.
Jul 3 2019
This fixture is no longer in use and has been disassembled.
Some of these helpdesk issues resulted in RMAs, so they are going to be down in MER on the green pallet in machines awaiting repair, or if they have already been repaired, they will probably be in the electronics scrap bin.
@Galadriel where are the boards located? We can send them to Mark.
Jul 2 2019
In speaking with Kent, this is not so much a vendor quality issue as the errors relate to other issues. These units were tested prior to leaving Aleph and passed. Some of the RAMBo's were installed by Customers which could lead to problems. Some of the tickets are not RAMBo issues but other issues with the printers. If it is truly an electrical issue can @mjpelletier look at the tickets and see what his conclusion is?
Jul 1 2019
Helpdesk ID reference:
going to remove redgum for now as it's not effecting them. We can always add it back should we see any problems.
Jun 18 2019
@MichaelM I updated the part number for you. I think the images are close enough that we can use them. LMK if this is not the case.
Jun 13 2019
Jun 12 2019
Could I get one of you Great Mer folks to check on the Taz 6 frame jig? It seems to be out of square.
May 29 2019
Oliver and I have talked to PMM about this. They have suggested that the holes should be centered on the flange rather than offset towards the curved side, because their machines have trouble putting the inserts in so close to a curved edge. I told them to submit a redesign to Josh Perry to be approved by R&D to improve the manufacturability of this part.
Steven and I found that most of these will be acceptable by tightening the screws a little more and they should be okay. If there are any that look extremely crooked, then we will have to correct it by either re-tapping or replacing the chassis.
@guadalupe Please keep a look out for these when using any chassis to build boxes. Make sure that the pem nuts are straight.
May 28 2019
May 22 2019
May 21 2019
May 17 2019
OCA part card updated to include approved heatshrink DWHST12BK4.
@kim I approve using MPN DWHST12BK4 for EL-MS0356.
@kim normally I think we would want to get a small amount in for a first article, but if the risk is that we go line down, then that might not be an option.
I didn't find the MPN on the datasheet you posted, but I searched it and found https://we-supply.com/heat-shrink-tubing-1-2-x-4-31-adhesive-dual-wall-black-dwhst12bk4 which looks like it will work fine.
Correction: The AO partnumber should be EL-MS0356 Heat Shrink Dual Tubing 1/2" for 5mm ID 11mm OD Ferrite, Black 4FT