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![Forest biochar rocket stove](https://farmhack.org/sites/default/files/IMG_20140415_093431.jpg)
Forest biochar rocket stove
Rocket stove designed to make biochar and provide heat for cooking and space heating
![Custom 3D printable Jang Seeder Rollers](https://farmhack.org/sites/default/files/IMG_7631_0.jpg)
Custom 3D printable Jang Seeder Rollers
Custom versions of seeder rollers for a Jang seeder. So far, the YX-24 and LJ-24 are adapted to become YX-48 and LJ-48 rollers to double the amount of seeds that are planted per revolution of the seeder wheel. Instead of alternating seeds one at a time on each side of the wheel, our wheel drops two seeds at a time. We also made the holes slightly deeper on the LJ-48. May 1, 2015 - Added the YX-80 for arugula seeds. 80 per revolution.
![Compost Sensor](https://farmhack.org/sites/default/files/image-5.jpg)
Compost Sensor
Compost Sensor is an open source sensor system for monitoring and recording the temperature and moisture of active compost. It is for small scale commercial composting operations to help with quality control and the certification processes. http://www.instructables.com/id/Compost-Sensor/
![Cold Frame with Recycled Windows](https://farmhack.org/sites/default/files/IMG_1494.jpg)
Cold Frame with Recycled Windows
Use salvaged windows and materials to construct a mini-greenhouse for season extension. These cold frames can be used to warm soil before planting directly in the ground, create a micro climate for seedlings and starts, overwinter dormant plants, and more.
![Small Scale Threshing Machine](https://farmhack.org/sites/default/files/image_2.jpg)
Small Scale Threshing Machine
Small scale threshing machine manufactured in Turkey. Cleans small and large grains. Adjustable vibrating screens. Stationary operation. Runs off pto. Here is a link to learn more about it. http://www.riodelreybeans.com/farming-heirloom-beans.html callaloofarm@gmail.com
Row / Bed Marker
The tool shown here is a row/bed marker that is rolled out before direct seeding or transplanting. It's purpose is to quickly mark out beds at 1' intervals with an in-row spacing of 11" so that when I direct seed and transplant, crops will be planted on a grid for easy cultivation, harvesting and will facilitate in keeping track of yields / plants per bed.
The Free Farm Manifesto
We lay the Free Farm Manifesto here editable by the community to help define what software and hardware freedom means to us and our goals for achieving that freedom in the tools we use in agriculture.
![Sweet Box Germination Chamber V2.0](https://farmhack.org/sites/default/files/Germination%20Chamber.jpg)
Sweet Box Germination Chamber V2.0
A "sweat box" style germination chamber built using readily available parts and a broken chest freezer that provides humidity and temperature control. Early season germination can be inconsistent without a closely controlled environment for starting seeds. Commercial greenhouses use similar systems but the cost can be prohibitive for the small vegetable grower. This is a branch of the first version posted to Farm Hack (http://farmhack.net/tools/sweat-box-germination-chamber)
![Seed Germination/Early Growth Chamber](https://farmhack.org/sites/default/files/IMG_20150303_193852_865.jpg)
Seed Germination/Early Growth Chamber
A seed germination chamber using a broken upright freezer. I got the idea from DGrover's "Sweat box" Germination Chamber: http://farmhack.net/tools/sweat-box-germination-chamber. I added onto his design by adding lighting, air circulation, a heat source and temperature/humidity gauges. This is a functioning concept that is being tested right now, and there are still issues to work out. Such as preventing excessive temperature and humidity levels as well as other concerns. So far the expense is about $150 (not including cost of freezer), nominal compared with a manufactured growth chamber, thus enabling small farmers/gardeners the ability to reliably start quantities of seeds early and extend their season.
![Wireless Garden/Field Sensor Node](https://farmhack.org/sites/default/files/20150117_174105.jpg)
Wireless Garden/Field Sensor Node
An open source, wireless,solar powered sensor that monitors soil temperature, air temperature, humidity, luminosity, and soil moisture levels in garden/field