Update readme.md #27

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# Archimajor
# Archimajor ![ ](https://img.shields.io/badge/-Altium-EEBF3F?labelColor=gray&style=flat&logo=altiumdesigner&link=https://www.altium.com)
<img align="left" width="300" height="200" src="./.allspice/PCB.PNG">
## Summary
Board is an all in one 3D printer motherboard. It is an original RAMBo style design with the 32bit Atmel SAM3X8E processor (same as Arduino Due) and TMC2130 stepper drivers all on one integrated PCB. Archim is named after the mathematician Archimedes. The RAMBo stands for (R)epRap (A)rduino-compatible (M)other (Bo)ard.
You will see this board is not complex at all, but at the same has a few details and components, making it a great option to learn how you can leverage AllSpice in your Altium projects.
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## Specifications
3D printer motherboard, designed by [Ultimachine](https://ultimachine.com/). Features include:
- **5x integrated 256 microstep motor drivers**
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- **SPI (Serial Peripheral Interface)**
- ** Removed infinite loop on self-calibration.
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## Specifications
### General Specifications
**Input Power Supply**: 12V - 24V DC, 16A+
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[Current FW image](https://github.com/ultimachine/Marlin/commit/2f9e3b771e2669118cce922ad52785165e16d1e9)
## To Do List
To make the most out of this demo we suggest you to:
- [ ] Clone this repo to your local env
- [ ] Review the schematics and PCB files within AllSpice and your local env.
- [ ] Take a look at the PCB Prints PDF in [this file]()
- [ ] Review the issues tab and create a new one from the templates.
- [ ] Review the Design reviews tab and the comments left
- [ ] See the releases for the [repo](https://hub.allspice.io/allspice-hermes/ArduinoUNO-DEMO/releases)
- [ ] Fork the repo and make an update yourself to later do a resign review
## Documentation
- [Git 101](https://learn.allspice.io/docs/git-101)
- [AllSpice Crash Course](https://learn.allspice.io/docs/allspice-crash-course)
- [Design review and merging guide](https://learn.allspice.io/docs/design-reviews-and-merging)
- Importance of [.gitignore](https://learn.allspice.io/docs/git-101) and [.gitattributes](https://learn.allspice.io/docs/how-to-minimize-files-in-design-review-by-file-pattern-or-extension) files.
### Original source
[Source](https://github.com/ultimachine/Marlin4due/tree/Archim2)
### Legacy firmware (use releases for current fw)
[Binary](https://github.com/MarlinFirmware/Marlin/archive/bugfix-2.0.x.zip)
## Bill of Materials
[Archimajor.csv](./Archimajor.csv)
## Note
Changed heat bed fuse holder to yellow to differentiate channels.
## Disclaimer