Detailed Guidance on Extension Board Installation and Limited Switch Issues

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    Technology Salad

    @superhans , don't use that bracket semi-mounted on the linear rail guide-block, I can't imagine needing a dent as in the photo. Hopefully it has not altered the threads in the guide-block.

    If you have some lint-free towelettes, please wipe the sides of the guide-block where it meets the rail and clean-up the dust etc gathering. Also, do you have some really light oil, like sewing-machine oil or hair-trimmer oil that is frequently included for maintenance of said appliances. Not much is needed, but should be added in the side grooves on the guide-block every 5-10 hours of printing. They do say they are self-lubricating, but the grooves on my guide-block become dry frequently.

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    superhans

    Thanks Arnold, for some reason I must have overlooked the video entirely, although I searched through the FAQ/help sections and did a video search, that should have brought it up. Weird...

    Jason Wu also published a additional guide just now:

    https://support.tiertime.com/hc/en-us/articles/360023857753-Installation-Guide-of-Heated-Build-Platform-for-Cetus-MK3

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    Arnold

    @Joshua, no I didn't get one. I also didn't get the yellow power adaptor but I assumed it wasn't included if you order the 220W power supply. But why is my extension board working with the stock cable?

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    Technology Salad

    Is there no insulation between the bracket and the heated build-plate? Seems like there would be too much heat-transfer from the heated build-plate into the guide-block. Going to look at the guide-block documents from the manufacturer for the safe operating temperature info...

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    superhans

    Thanks for looking into it Brent! Will definitely apply your maintenance tips for the guide-block. I have no prior experience with parts like that, so any guidance is welcome :)

    Regarding the black screw, not to worry, it's the original one. The photo is a bit misleading. I can fasten the screw more, but that forces the bracket to tilt upwards opposite of the screw because of the dent. (Edit: I updated my post above to include a photo of the tilted state)

    Still unsure about the printed parts. The right one on the photo has the same clips as the extension board cover base, that snap into the extruded rods. Maybe it's just supposed to be a cable guide along the z-axis. The one with the hole, still no clue. 

    Here is a photo of the bottom of the new heated build plate:

    Edit: Regarding the sandwiching theory, I tried a couple positions, but it doesn't really make sense to me. For better perspective I included the photo. First I thought it would be a spacer, but it's too thick.

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    Technology Salad

    That's a great snippet of wisdom!!

     

    Alrighty, until next time...good journeys to you!

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    Technology Salad

    That bracket is definitely defective, I'm concerned with the threads "in" the guide-block not the screw/bolt

     

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    Arnold

    Hey Joshua, how come my package didn't come with a new transfer cable, I used the original Pyz white connector and still works?

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    superhans

    Yes, you're right, the extreme temperatures won't prolong the guide-blocks lifespan. 

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    Technology Salad

    K, grab some sleep! Tomorrow it will be...

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    Technology Salad

    Can you post a pick of the plastic part with those 4 posts near to the guide-block.

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    superhans

    Got ya, with the thread. I was gentle and didn't overdo it and the thread looks perfect still. There is a german saying regarding fastening screws that roughly translates to "after firm comes off". I try to apply that wisdom most times :)

    Thanks again and good night!

    Edit: Here the photos of the printed part with the clips:

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    Joshua Chang

    @Arnold,

    Because we have dispatched some extension board without the cable inside to EU and US warehouse  before we realized this issue ,So some early buyer may dont see the cable in package, But we added it later, The future buyer will see the cable, If you dont have it, Please contact us to get one.

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    Technology Salad

    Looks like those printed parts attach to the top of the angled bracket (with dent) , so they probably are sandwiched between the build-plate and the angle bracket.

    I'll have a quick look at the installation guide now.

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    Arnold

    @Joshua, I am so lucky then! Everything works :D

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    Technology Salad

    Wow, yup, there's the relation not seen in separate photos...lol. OK, changing recommendation...try not to push that part into any unsuspecting holes!

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    Arnold

    @superhans, the plastic on the left with a hole goes to the rear Y axis guide and secured by one of the screws. The other plastic with an angle is the ribbon cable holder used to secure the ribbon cable, the wide groove is the ribbon cable guide. Both were covered in the older videos that you can find here - https://youtu.be/stUvDT2asPI

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    Technology Salad

    I noticed what looks like a nick on the linear rail, on the left towards the end of the rail in the first photo submitted. I recommend to check for any nicks or significant scratches on the rail where the guide-block meets the rails. Any raised scratches and/or nicks in the rail grooves can easily blow-up a bearing because of the tight tolerances between the guide-block and linear rail.

    I could not find any documentation that would help-me help-you, I recommend waiting to hear from support on the issues you've raised, especially that dent!

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    superhans

    Will do, good night to you later!

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    superhans

    Hi Joshua,

    thanks for the more detailed instructions on the extension board. What I'm struggling with is to figure out how to correctly install the heated build plate. The old guide for the beta plate is not applicable/transferable to the new model. How the FFC cable is connected is clear from this guide here.

    I've 3 questions remaining:

    1. I am wondering about the new mount for the plate to the linear rail bearing block. In my case it's not possible to firmly and evenly mount it. Either there is a gap or it's off angle. Because of the dent where the sheet was folded (see photos with semi-fastened screw). Is it required? Is mine faulty? 

    Edit: Next photo is with the screw fastened, that results in a tilted bracket:

    2. What is the purpose of the printed parts? Where do they go?

     

    3. The cable with two screwable connectors (red/blue) is for an alternative power source, if the Tiertime 220 W power supply is not used, right?

    Thanks! 

     

     

     

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    Rowdy3D

    Thank you Joshua for this great tutorial!

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    superhans

    Right, it looks like a scratch on the photo, but I just closely inspected the area with a LED flash light and luckily it was just a bit of dust that got into the picture, but thanks for keeping such a close eye!

    And thanks very much for looking into it, much appreciated! I will wait for a response, that will document the heated build plate upgrade for all buyers. 

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    Joshua Chang

    @Arnold,

    Yeah, You are lucky if the original cable works!

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    Joshua Chang

    @Arnold

    Yes, In the new package we canceled the yellow power adapter ,after a while , we added the limit cable in the package , So the orders during this period ,May no cable inside the package, But the further orders will come with it . 

    Not all but most of the original cables are can  work with extension board, But some of them can not , and then they need replaced the new cable . 

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