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The 3rd party heated print bed for The Micro M3D printer brings full utilization to the printer.
The 3rd party heated print bed for The Micro M3D printer brings full utilization to the printer.
247 backers pledged $26,214 to help bring this project to life.

About

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The Micro M3D Compatible Heated Print Bed

$26,214

247

$21,500 - Heat Barriers!

See update for more info!

I have only recently been dealing with Kickstarter. My first purchase was actually the M3D Micro Printer. They were very responsive and have a great product and it is getting better by the day. From day one the backer's noticed that it would be a much more functional printer if we were able to have a heated print bed. Several people bought existing parts off the shelf and created there own and they worked well.

I thought there might be a need for people who want a heated bed, but may not have the resources, the time, or the ability to do that. So I had a custom heated bed made, designed a circuit board, sourced electrical components, and had a program written to control the board using PWM. 

The prototypes work great! It is a small step, in this case, to go from prototyping to near production. 

The 12V DC connection will come standard in every Power Module.
The 5V USB connection will only be available in Power Modules with the integrated Power Cord Addon.

USB Connection is for power only (They can be used for more than just LED Lights and OctoPrint)

If you have already added $20 for the integrated power cord, simply reduce your pledge my $5, unless of course you want the LED Light Addon. Then increase your pledge by $10

Why You Need A Heated Bed

Prevent Warping
I know most of you have seen images like this one.

The print on the right is printed without a heated bed, even on buildtak this is still a major problem, especially with ABS. However, the print on the left was done with a heated bed. It keeps the plastic warm/hot enough to prevent shrink that occurs when the plastic cools. PLA shrinks less than ABS which is why ABS warps more. 

Pros of ABS
ABS is my preferred material to print with, and the heated bed makes it easier than PLA to print with. With a properly configured printer, the right temperature, and a clean heated build platform, you shouldn't have a problem with warping anymore! 
The reason it is my preferred material to print with is its durability. PLA is much harder and stiffer than ABS, and in a lot of functional prints a material that is more durable (flexible but strong) can last much longer than PLA. The other advantage is its ability to be vapor smoothed with Acetone. Check out the image below.

Instructions can be found on how to do this with a glass jar, some acetone, and a heated print bed. Although there are a lot of ways to do this. Your prints can look amazing when you use ABS!

Enclosure Design!

The enclosure design features 3 spring loaded rubber foot clamps that won't harm your Micro, They are extremely easy to place. They also include a magnetic latch that will keep the doors firmly secured while printing, and also provide a open space in order to get out completed prints.

Rewards

Power not Included (Shipping not included)

This simply comes with the bed and attached thermistor. 

Tinker's Kit (Shipping not included)

Included in the tinker's kit:

  • Aluminum Heat Bed (With Attached Thermistor)
  • Power Cable for Aluminum Heat Bed
  • Power Distribution Module's Individual Components
  • Power Distribution Module Enclosure
  • Power Adapter
  • 3ft Mini USB Cable
  • 4-Bed Mounts (All hardware necessary to mount bed)

Super Early Bird (Shipping not included)

Included in the super early bird:

  • Aluminum Heat Bed (With Attached Thermistor)
  • Power Cable for Aluminum Heat Bed
  • Assembled Power Distribution Module
  • Power Adapter
  • 3ft Mini USB Cable
  • 4-Bed Mounts (All hardware necessary to mount bed)

Early Bird (Shipping not included)

Included in the early bird:

  • Aluminum Heat Bed (With Attached Thermistor)
  • Power Cable for Aluminum Heat Bed
  • Assembled Power Distribution Module
  • Power Adapter
  • 3ft Mini USB Cable
  • 4-Bed Mounts (All hardware necessary to mount bed)

On Time Bird (Shipping not included)

Included in the on time bird:

  • Aluminum Heat Bed (With Attached Thermistor)
  • Power Cable for Aluminum Heat Bed
  • Assembled Power Distribution Module
  • Power Adapter
  • 3ft Mini USB Cable
  • 4-Bed Mounts (All hardware necessary to mount bed)

Add Ons

$10 - PEI Sheet installed onto heated bed (Take a look at LulzBot, and Upgrade from Kapton) HIGHLY RECOMMENDED!  

$20 - Acrylic Enclosure - 4 panels (leave top open) along with clips. I am currently designing this. At least one side will be a hinged door with a magnetic latch

$15 - Modified Power Cable (The power supply with a connection for the heated bed, AND the micro)

$15 - LED Light kit that mounts underneath the top of the micro!

Wiring Diagram

 

Heated Bed with attached cable

Here is a prototype of the heated bed with a soldered on cable. The plan for the Kickstarter batch is to solder a connector onto the heated bed in a location that won't interfere with the frame of the printer. The supplier is willing to work with me to get everything just right. 

Custom PCB's

 The PCB below is an early version, I have added a connector for the ESC so it isn't hardwired to the board. Instead of using the fairly unreliable toner transfer method, I would like to machine these out, It will make a much higher quality circuit board.

Here is the first batch of PCB's that I made for testing along with Mr. Octopus that I printed using the heated bed. Typically a very difficult print without a heated bed due to the long thin tentacles.

 Power Distribution Module

The 12v USB Port shown above has been changed to a DC connector port for safety and standard reasons. 

Just finished the end caps for the enclosure. They printed wonderfully and completely flat. You can see some bad parts of the print on the ends, that is because I had peeled up some of my kapton when I first began testing so it just prints directly onto the aluminum in some places.

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I just got done designing a polycarbonate version of the enclosure that I could machine out of sheet. What do you think?

Heated Bed Installation

 I have prototype parts that use the holes in the base of the Micro. These squeeze the silicone tubing outward against the walls of the Micro. Below are some images of them installed. You insert the mount, tighten the screw, and then put the bed on top of all four of them, then screw the bed down to the mounts. These parts need to be made out of high temp material. Either Nylon or a high temp Polyurethane are what I am planning on trying.

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Heated Bed in the Micro

The first batch of heated beds had the holes drilled in the wrong location. This requires the power cord to come out of the front of the Micro. This will be fixed so it can come out of the back of the Micro. (It looks a lot better that way)

The wire in the image above and below is the thermocouple, not the power cord.

SHIPPING

I will attempt to ship anywhere around the world. Shipping however will be collected after the Kickstarter.

Add Ons

$10 - PEI Sheet installed onto heated bed (Take a look at LulzBot, and Upgrade from Kapton) HIGHLY RECOMMENDED!

$20 - Acrylic Enclosure - 4 sides (leave top open) along with clips. I am currently designing this. At least one side will be a hinged door with a magnetic latch

$15 - Modified Power Cable (The power supply with a connection for the heated bed, AND the micro)

$15 - LED Light Kit - Set of four led lights (one for each side) can be adhered underneath the top of the micro.

STRETCH GOALS

$17,000 - Kapton Film Installed On Beds

$20,000 - Injection Molded Mounts

Disclaimer-
By funding this Kickstarter you are agreeing to using the product at your own risk. Never use the product without adult supervision. It gets extremely hot. As with electricity, there is always a chance that it could catch fire. I am not responsible for any damage the product may cause. 

Risks and challenges

There really aren't very many risks. I have determined that the bed mounting parts being 3D printed aren't very durable due to their size. My plans are to create polyurethane castings of these parts, and if the stretch goal is met, have them injection molded in Nylon to withstand the temperatures of the bed. Due to the simplicity of the components they shouldn't be hard to injection molded, and already have quotes from several suppliers.

Another risk might be getting carpal tunnel from soldering too many circuit boards ;)

I have already sent out several prototypes, and am using one myself currently. They make a world of difference.

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Support

  1. Select this reward

    Pledge $1 or more About $1.00

    You will have my eternal thanks.

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    Support

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  3. Select this reward

    Pledge $20 or more About $20

    Polycarbonate Enclosure
    -Four Sets of Polycarbonate panels
    (includes all hardware to mount and use)

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  4. Select this reward

    Pledge $35 or more About $35

    Power Not Included

    Heated Bed Only with 100k Thermistor Installed.

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  5. Reward no longer available

    Pledge $70 or more About $70

    Tinker's Kit

    Kit (Assembly Required)
    Includes Heated Bed with 100k Thermistor Installed, as well as everything else needed to create a fully functional kit. (Soldering required and cables will come with crimped on ends (tool is expensive))

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    Reward no longer available 25 backers
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  6. Reward no longer available

    Pledge $70 or more About $70

    Super Early Bird

    No Assembly Required
    Includes everything from the Tinker's Kit, except you don't have to tinker. Just install the bed and plug it in.

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    Reward no longer available 20 backers
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  7. Reward no longer available

    Pledge $80 or more About $80

    Early Bird

    No Assembly Required
    Includes everything from the Tinker's Kit, except you don't have to tinker. Just install the bed and plug it in.

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    Reward no longer available 50 backers
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  8. Select this reward

    Pledge $90 or more About $90

    On time bird - Don't worry there are plenty of worms to go around

    No Assembly Required
    Includes everything from the Tinker's Kit, except you don't have to tinker. Just install the bed and plug it in.

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    131 backers
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Funding period

- (30 days)