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Interconnect housing adjustments
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Description

The retention features added from T3428 are ineffective due to the overall width of the slot being too wide.
I have had to drill out a lot of the holes for the stand offs, not removing much material, mostly due to our of round holes. This may be affected by the machines and the locations where these parts were printed.
The bed harness (not the bed power side) has a tendency to slip out and show the small wires, I think the exit hole for that could be tightened up a bit.

Event Timeline

logan created this task.Dec 4 2018, 2:32 PM
logan created this object with edit policy "LulzBot Hardware Products (Project)".
west added a comment.Dec 4 2018, 3:28 PM

Changes made, I'm going to print one off and test the fit

logan added a comment.EditedDec 5 2018, 12:11 PM

Received test part from @west The adjustments worked ok, the bed power retention could stand to be a touch tighter. Adjustments made to exit holes helped the bed harness but is now a tad too tight on the bed power harness due to the sticker on the harness in that location. May still be workable.
Widening the holes helped fit the part over the stand offs much easier.

west added a comment.Dec 26 2018, 12:32 PM

If we are going to go with adding the TVS diode to the bed harness then the bed harness connector will need to be changed from a 4 pos connector to a 6pos (sill start a different ticket for that) but that will change the bed harness slot. Luckily the z max switch spot can be made quite smaller since it is a wire running through the interconnect

logan added a comment.Dec 26 2018, 1:05 PM

Doesn't the bed harness already have a diode? Are we adding a second one?
Since we're already using 5 pin housings elsewhere in the assembly, could we use a 5 pin instead of 6?

west added a comment.Dec 26 2018, 2:02 PM

We could, do you know the pn for the male and female connectors?

logan added a comment.Dec 26 2018, 2:07 PM

My apologies, I guess the ones I thought were 5 pin are actually 6 pin.
What harness is this referring to?

west added a comment.Dec 26 2018, 2:09 PM

EL-HR0140 bed harness

@mjpelletier says it is helping with esd to add the second diode

west added a comment.Jan 3 2019, 3:01 PM

I tested this on quiver 18 and the bed power retention works well

@EricNugent @MikeR the Alpha changes doc shows this was test on one machine in MER. Can this be installed on another machine and confirmed if good?

@Steven I will try to get this part installed on my merchine sometime today.

i installed this new interconnect housing and it went in just fine

I was able to get this part installed today and fit much better.

Steven closed this task as Resolved.Jan 11 2019, 12:44 PM

@MikeR thanks! This is now merged into master.