TAZ modular bed... metal plate sags.

A forum dedicated to the stock LulzBot TAZ 3D Printer
B-Hep-Spring
Posts: 59
Joined: Fri Oct 12, 2018 11:55 am

Re: TAZ modular bed... metal plate sags.

Post by B-Hep-Spring » Sun Jan 13, 2019 2:16 pm

I just fitted the Modular bed and made new stand offs now im using the bed I also have a sag approx. 1mm at 60deg I have this fitted to the Taz 6 I was going to make new printed corners taking the 1mm off instead of the 11mm stand offs, is there another way to stop it sagging.

catzcradle
Posts: 97
Joined: Sun May 17, 2015 11:15 pm

Re: TAZ modular bed... metal plate sags.

Post by catzcradle » Wed Jan 30, 2019 1:33 am

I finally got tired of the uneven heat. (bed set to 110, reads with heatgun 75) and used a sheet of the 3M adhesive and stuck the steel to the glass. Now it gets to 110. Debating what to do with the second modular system I have on another machine.

dysan
Posts: 28
Joined: Fri May 18, 2018 8:53 am

Re: TAZ modular bed... metal plate sags.

Post by dysan » Fri Feb 01, 2019 11:36 pm

What I have used on my Ender 3 printer was a thin silicone thermal pad on top of the aluminum heat bed and then placed the glass on top of it. It works great and has very good heat transfer...cheap too!

https://www.amazon.com/gp/product/B01N9 ... UTF8&psc=1

I want to try and level the bed on my Taz 6 but haven't decided what to do. I now have a bl-touch on mine and the bed is very tilted(high on the right side). I guess the first thing would be to print some new bed mounts from nylon and raise the left side up to compensate???

hockey1237
Posts: 36
Joined: Wed Feb 03, 2016 4:19 pm

Re: TAZ modular bed... metal plate sags.

Post by hockey1237 » Mon Jul 01, 2019 1:53 pm

In case anyone is wondering, this is still an issue. I just received the new etched modular print bed heater today, and these photos are during printing. To be fair, I'm printing the new bed corners, so I guess there's an arugment that it might get better once I install it with those, but I've also got the bed set to 120 in the hopes of projecting a little more heat up to the glass.

I'll probably try flexing the steel back the other way a bit to see if I can flatten it out, and maybe put something under it to help hold it up, but it sounds like some 3M adhesive might be the way to go.
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Orias
Aleph Objects | LulzBot
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Re: TAZ modular bed... metal plate sags.

Post by Orias » Mon Jul 01, 2019 2:56 pm

Let us know if the new corners work for you, and get in touch with our support team if not: https://LulzBot.com/Support.

hockey1237
Posts: 36
Joined: Wed Feb 03, 2016 4:19 pm

Re: TAZ modular bed... metal plate sags.

Post by hockey1237 » Mon Jul 08, 2019 6:43 am

The corners didn't do much to fix the issue. The heater was just sagging way too much. I've just propped it up in the middle, so it's working, but this definitely seems like an issue that should be addressed in the design. Or ship the part with a spring to put under the middle.

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Orias
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Re: TAZ modular bed... metal plate sags.

Post by Orias » Mon Jul 15, 2019 10:25 am

Reach out to the support team at https://LulzBot.com/Support with a link to this thread, we have a standoff that'll help.

B-Hep-Spring
Posts: 59
Joined: Fri Oct 12, 2018 11:55 am

Re: TAZ modular bed... metal plate sags.

Post by B-Hep-Spring » Mon Jul 15, 2019 12:52 pm

they should read this thread and give details of the stand off< I did contact them and they seemed to be vague about this issue> LULZBOT if you reading this you don't credit yourself with such a product that clearly has a design issue..

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Orias
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Joined: Wed Mar 27, 2013 1:24 pm
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Re: TAZ modular bed... metal plate sags.

Post by Orias » Thu Aug 08, 2019 10:00 am

We've added a link to the center standoff for TAZ 5 users to the product page. Here's a link to the model: t5_flexy_standoff_8mm.stl.

If you have a TAZ 5, and the heater portion is sagging, print this in Ninjaflex, using the high-speed setting with the infill percentage set to 60%. Place it in the center of the aluminum bed plate, and place the print bed assembly on top.

If for some reason you're unable to print with NinjaFlex, reach out to the support team at https://LulzBot.com/Support.

TomsCables
Posts: 87
Joined: Mon Apr 14, 2014 8:45 am

Re: TAZ modular bed... metal plate sags.

Post by TomsCables » Fri Sep 13, 2019 11:47 am

I'll add my observations here.
I have modified my modular bed with a 3mm(0.10") thick aluminum plate that has the heat mat glued to it.

This Aluminum plate is several times thicker than the one that came with the modular bed and it has sagged also. Its just the physics of the mounting system, having the plate supported on the corners will cause it to sag. I fixed mine with a $2 solution.

Danco Rubber Faucet Seat Kit for Delta, Peerless Item # 28765 Model # 80684
https://www.lowes.com/pd/Danco-Rubber-F ... ss/1081135
This faucet rebuild kit has two small beehive shaped springs that do the trick. And ti comes with two rubber seals that you could use as thermal/electrical insulators.

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