Bed upgrade for $30 + your filament

Here are the photos of my printer bed. The first shows the plywood, PCB heater and borosilicate. The plywood is screwed to the drawer sliders, and everything else is held in place loosely by some 3D printed clips (seen at the four corners). That wasn't sufficient so I used two binder clips on the right side to hold everything more securely.

The second photo shows PCB heater with the glass removed, and the third photo shows the underside of the PCB heater.

I don't recall seeing any other printers with this exact setup for the bed, but since Robo3D loosely calls everything an R1, it's hard to distinguish versions. Any help is appreciated.

 

Um wow. I think your best bet would be to get a new on from Robo3D, possibly the whole y axis upgrade.

 

Can you elaborate on your statement a bit more? Is my bed pre-beta or something? And does that make it totally unworkable for this linear motion upgrade?

 

Mark,

Did you buy the upgrade from Robo3d or print it out yourself?

What parts did you use/reuse?


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My Robo must be a later model being an international backer. It had the 3mm glass bed with kapton heater mounted to the rails via bolts with spacers. Mark and Mike would be the better to advise on your bed.

 

Yeah that's one of the very first kickstarter ABS printers. You should buy a replacement glass bed then you can do the mods to get it like tony's

 

What's the best place to buy a replacement glass bed? What are my options for the heating element? Reuse the PCB heater or use a Kapton heater? Does anyone make a heating element that match the XY bed dimensions of the Robo?

Thanks guys, your knowledge is very helpful.

 

This is what I suggested: http://www.robo3dprinter.com/collec...cts/replacement-heated-borosilicate-glass-bed

It's a drop in replacement for your rails. Though I would suggest upgrading to a linear rails option.

I'm in the process of making my own bed using glass from cincinatti gasket: http://www.cgindustrialglass.com/

Then I got this heater that's 24v though: http://www.ultibots.com/24v-kapton-heater-200mm-x-250mm/

 

Mark, Mike, thanks!

Mark, do you have the dimensions of the SainSmart PCB heater by chance?

Mike,

You suggested the Robo replacement glass bed. Will this bed fit Tony's linear rail upgrade? It would be great if Robo posted dimensions of their products for fitment verification.

 

The bed fits to the linear rail system. I designed the original one to update the stock system without exchanging the bed. Tonys remix uses the exact same size.

Edit: You can find the bed size in the comments at https://www.thingiverse.com/thing:386602/#comments (254 x 384mm (+/- 1mm))

 

Measure your borocilicate glass. It should be about 254X383mm
If it is, you are in luck.
Rails attached same way from what i can see so all you need to buy is the bearings X4

 

Tony,

My boroglass measures ~262mm x 250mm. However, my plywood base measures out to ~254mm x 383mm, so I should be able to use that with this upgrade.

My biggest challenge at the moment is getting the bed mounts to print correctly. My glass is slightly warped and the first layer requires constant attention and Z-rod adjustment, especially since the piece traverses nearly the whole diagonal. Nothing much to do that dedicate time to watching it and making the tweaks.

Thanks again for the help.

 

ooh man, i complained about warped bor glass for over a year. Then they finaly sent me a free replacement.
Why dont you try to do the same ?
They are not selling anymore bed on rails so they have plenty of old glass laying around. Ask them for one.
Maybe pay for shipping i dont know....

 

I ordered a new glass bed and printed out the linear axis upgrade. Until the new bed arrives I'll just use what I have. The bed I currently have is flexible/spongy in the sense that all the layers (glass, pcb heater, plywood) have some degree of give to them. This makes getting the first layer a tricky affair. I've tried shimming everything and it's now close but not perfect. I have printed a couple things on the new linear rods and really like the system. (And off topic a bit, I replaced the helical couplers which seems to have resolved the Z wobble on one side, but not the other. Will keep trying).

Thanks for everyone's help.


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Hey ToM Robo, what did you get for a delivery timeframe on your replacement glassbed? I have asked them numerous times before ordering with zero response.

 

Try the chat feature during normal business hours

 

I haven't heard anything about a delivery timeline yet. I believe they were at CES last week, so that might slow down response time.