Reprap Forum - Bounties Contributing to Open Source Development with Bounties https://reprap.org/forum/list.php?337 Wed, 11 Mar 2026 16:01:52 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?337,877974,877974#msg-877974 high temp pt100 sensor instalation for 450c temp extrusion (no replies) https://reprap.org/forum/read.php?337,877974,877974#msg-877974 I would like to install a pt100 sensor to monitor the heating of the hotend (v6 gold edition with copper plated heat block and nozzle x) I would like to know how I can wire the thermistor to a panda pi. but I also have a skr 1.4t, skr 1.1 and a mks sbase 1.3. I would prefer to use the panda pi but after months of trying to make this printer and having this pt100 sensor problem, broke a skr 1.4t already.... i am close to give up. I would like somebody's help and I will pay for the service. I have the pt100 signal booster board and the max31855 board (what duex2 pt100 daughterboard uses) ... If somebody is willing to help me out with the wiring, firmware and make the hotend heat to 400+ degrees i would gladly pay for the service. And then make a tutorial about the subject and mention the person that helped me out (if they would like to) since there is little to no info on this and all info i read is sort of all over the place and not specific. Contact me here through a pm if you are interested in helping me out and I can explain in more detail.]]> ormerodnewb Bounties Fri, 09 Oct 2020 10:50:35 -0400 https://reprap.org/forum/read.php?337,825020,825020#msg-825020 London RepRaps needed for printing artwork (1 reply) https://reprap.org/forum/read.php?337,825020,825020#msg-825020
I am interested in distributing the ownership of a highly visible artwork through collaboration, network building, and open source development. The exhibition will be held In New Cross during the Masters of Fine Arts Degree show. My research as a graduate student has led me to concerns with the production of artworks through a distributed means. I am asking the London RepRap community for help with my degree!

I have worked on a file to create a Geosphere that is roughly larger than three meters in diameter. The nodes of the intersecting rods will be made of 3d prints. I believe the printing should be distributed across London. Through this process I hope to connect a network of artists, designers, and makers to a greater community.

DEADLINE IS 01/07/2018

Please contact me if you would be interested in taking part in the project. Thank you and happy making ;)

Best regards,
Richard Ensor

For further information as to how you can be involved, email me at renso002@gold.ac.uk]]> ensor89 Bounties Sun, 10 Jun 2018 06:37:10 -0400 https://reprap.org/forum/read.php?337,717972,717972#msg-717972 Request for Funds: Marlin3DprinterTool (no replies) https://reprap.org/forum/read.php?337,717972,717972#msg-717972
Marlin3dPrinterTool is a open-source software that helps you configure and test your 3D printer. The software is under development and some features ar not fully tested on all types of 3D printers. The code is tested on: BigBox Pro Rigidbot Big RapideLite 200

The main features are:

Endstop testing
Bed limit and bed abjusters position
Z-probe configuration
Bed Level Tool
Scan building surface and create visual chart
Z-rod maintenance
Auto PID calibration
Extruder calibration
Firmware upgrade and migration
Installing

the installer can be found at [github.com]

Press download
Run the MSI
The program will create shortcut in the Start-menu and on the desktop
Endstop testing

Visual status Endstop. The function M119 uses and interprets the response. This feature makes it possible to control the connected Endstops reacts to physical contact. The function can detect all types of Endstop that Marlin can be configured.

X-min
X-max
Y-min
Y-max
Z-min (which is sometimes used as the Z-probe)
Z max
Bed limit

Move the extruder to the construction surface boundaries and save its corners. Adjustment screws location indicated by placing the extruder / z probe as close as possible and save the position. Safe Home is a position where it is easy to change the adjustment of the bed.

These values are saved and used for the semi-automatic bed level adjustment and for scanning the buildsurface.

Z-probe configuration

Test and configure Engage and release of Z-probe. Find the Z-probe offset. This is done by a procedure that combines the "paper-under-nozzle" with the fact that the printer itself can meassure the z-probe offset. The function is created with a serie of Gcode commands and some calculation

Bed Level Tool

Uses the bed limits and the adjusters position to create a suggestion how to adjust the bed. Each adjustment point/screw will give

Clockwise/counterClockwise turn of the adjuster
Amount of turn described as hours:minutes where 1:20 means " 1 turn = 1 hour and 1/3 turn = 20 minutes
The lower left corner is fixed. All other adjusters are compared to this "fixed" adjuster.
The meassured value from the z-probe is shown.
After each bed-level-procedure the adjuster is calculated and the extruder is moved to the "Safe-Home" position and the adjustmen ovf the adjusters can be done.

Repeat until all adjusters are within wanted differance. ( within 10 minutes turn is a good startingpoint)

Scan building surface and create visual chart

Almost the same as the bed-level-procedure but with more points. (a bed-level-procedure will create a 2x2 surface chart) This takes time but gives a visual chart of how and where the buildingsurface is uneven.

Z-rod maintenance

Moves Z repeated up and down and makes it possible to look for points where the z-rods sticking / binding. At the same time, you can clean and lubricate the z-rods in motion

Auto PID calibration

PID autotune for both Bed and extruder. Manual update of Firmware

Extruder calibration

Calibrate the extruder mm-per-step using a serie of Gcode commands. Manual update of Firmware

Firmware upgrade and migration

An editor that has syntax highlight on Marlin keywords and tries to find matching keywords in different versions of Marlin

Updates current Firmware and makes comments and old values
Transfer current Firmware values to a new version of Marlin
After saving updates the Arduino IDE can upload the Firmware.

STL Viewer
Show STL files and be able to rotate/zoom/resize/pan

STL Thumbnai
Windows File Explorer Shell Extension. Shows miniatures/thumbnails on STL files

More data available at [github.com]]]> Johnnyboy Bounties Fri, 28 Oct 2016 12:32:11 -0400 https://reprap.org/forum/read.php?337,560791,560791#msg-560791 Filament Extruder - 10K (5 replies) https://reprap.org/forum/read.php?337,560791,560791#msg-560791
Although there are many designs out there already, and I have spent lots of $$$ to develop yet more designs, the world is in need of an easy to put together kit for a basic filament extruder.

I would like to start over and have someone develop an extruder that makes filament as the same speed as you can feed into your 3D printer.

The extruder needs to be able to be controlled by a port on on the 3D printer board and use open source software.

We are starting with Black ABS, which will come to you pelletized.

These pellets are made from recycled Auto Bumper.

I am located in Seattle, WA USA - and I am open to anyone in the world who wants to work on this.

I can offer funds upon completion and also equity in my start up company.

You can see our website at www.prototypeamerica.com]]> lizhavlin Bounties Mon, 31 Jul 2017 03:22:45 -0400 https://reprap.org/forum/read.php?337,429419,429419#msg-429419 Request for CNC services (4 replies) https://reprap.org/forum/read.php?337,429419,429419#msg-429419
I'm currently developing a new hot end and need some decent quoting to machine three parts: one in brass one in steel and one in aluminum.

All the info in the following post:
[forums.reprap.org]

I'll be glad to give all info required and help with files.

Thanks,

Gerardo Gherbaz

If this post needs to go somewhere else please let me know.]]> ggherbaz Bounties Sun, 09 Nov 2014 22:10:53 -0500 https://reprap.org/forum/read.php?337,277762,277762#msg-277762 Request for funds: Wally and GUS Simpson Documentation (1 reply) https://reprap.org/forum/read.php?337,277762,277762#msg-277762
I have started a bounty for Wally's and GUS's assembly instructions. Instruction to get people through their first print will also be included.

If you want to motivate me with money then use the links below. :-)

Wally Documentation
GUS Documentation]]> nicholas.seward Bounties Sun, 01 Jun 2014 12:48:50 -0400 https://reprap.org/forum/read.php?337,277759,277759#msg-277759 Request for funds: BOB Simpson (7 replies) https://reprap.org/forum/read.php?337,277759,277759#msg-277759
I have the basics all mapped out. (Lashed geared double lamina compliant joints, proportional gear drive joints, gear bearings for pulleys, etc.) There is still a lot of work to do. How do you make a solid stepper mount without bolts? How do we tension the string without any vitamins? I want to print everything in small sections (To avoid a heated bed) directly on existing surfaces so we can avoid the need for a none-PLA build platform.

Time is tight and this isn't high on my list right now so I thought I would give the bounty system a try. I set the goal pretty high at $5000. I asked myself how much money would I need to get it to be on the top of my list.

This is an experiment in how the bounty system will work for something like this. Let's find out.

BOUNTY LINK

For this to work, you need to pledge if you want this to happen AND you have to use your contacts to solicit more support. I would imagine that if only the people that see this post pledge then this won't work.]]> nicholas.seward Bounties Thu, 20 Feb 2014 19:39:58 -0500 https://reprap.org/forum/read.php?337,272823,272823#msg-272823 Funded Bounty: Create a configuration tool for RepRap firmware (15 replies) https://reprap.org/forum/read.php?337,272823,272823#msg-272823
The bounty is currently at $50.00 USD. The link is here.

Please check it out if you would like to work on this, or contribute to the bounty.

Quote
bounty description
Problem:

To configure a RepRap for a particular printer, users have to edit a C header file. This can be tricky and error prone. Some firmwares allow a config file to be stored on an SD card, but the file still needs editing by hand.

Required

A user friendly config tool. The tool should be allow the user to select config settings, and then export the settings to a C header file, or other text file.

The tool should be cross-platform, at least Windows, Unix. The tool can store a local database of settings in a format such as XML, it does not need to read and parse a C header file, although that would be nice at least for initial import.

The tool may be written in any suitable language such as Python, Java, C#. The project must be published with a GPL or other Open Source license.
]]> MattMoses Bounties Sat, 07 May 2016 14:11:23 -0400 https://reprap.org/forum/read.php?337,270335,270335#msg-270335 Using Bountysource (7 replies) https://reprap.org/forum/read.php?337,270335,270335#msg-270335
I can think of a few things I would sling a few bucks for, but I have no interest in giving money to bountysource if it may never eventuate.]]> Greg Frost Bounties Wed, 11 Dec 2013 22:56:54 -0500 https://reprap.org/forum/read.php?337,270269,270269#msg-270269 Contributing to Open Source Development with Bounties (no replies) https://reprap.org/forum/read.php?337,270269,270269#msg-270269 reprap.org]]]> VDX Bounties Thu, 21 Nov 2013 14:50:12 -0500