12.31.2009
Repstrap Parts Under Construction
Here are a few parts that have been built so far. We are gettign close to an actual assembly now.
Software Installs
So here is the diagram of how we think all the software fits together.
The second diagram is from replicat.org and was very helpful for understanding How to take 3d designs from the computer to the electronics. One catch is that we didn't know we needed the usb-tty cable so after a few attempts to build one we decided to order it online. Hopefully it get's here before the end of the week. Yes it's a major set back but these types of things are expected. There is plenty of work here so we are just moving on.
The third image is just some install notes for all the software.
The second diagram is from replicat.org and was very helpful for understanding How to take 3d designs from the computer to the electronics. One catch is that we didn't know we needed the usb-tty cable so after a few attempts to build one we decided to order it online. Hopefully it get's here before the end of the week. Yes it's a major set back but these types of things are expected. There is plenty of work here so we are just moving on.
The third image is just some install notes for all the software.
2 Paths Under Development
Now that the base is complete. We are going to start down two paths of development. One path for the software and makerbot electronics and the second for machining and constructing the robot.
Software & Electronics assembly: prior to thinkaweek we gathered up all the hardware for the Ubuntu PC. We also installed Ubuntu and generally had it running. We also placed all of our electronics orders and hoped they would all show up by Christmas.
Robot Construction: Some of the machine work also started prior to thinkaweek but not all of it was done. The main parts to connect the Y axis to the A frames was started, also the Z axis blocks were almost ready. We still need to fit size and place everything so there are a ton of unknowns right now.
Software & Electronics assembly: prior to thinkaweek we gathered up all the hardware for the Ubuntu PC. We also installed Ubuntu and generally had it running. We also placed all of our electronics orders and hoped they would all show up by Christmas.
Robot Construction: Some of the machine work also started prior to thinkaweek but not all of it was done. The main parts to connect the Y axis to the A frames was started, also the Z axis blocks were almost ready. We still need to fit size and place everything so there are a ton of unknowns right now.
Making the Base 2
12.23.2009
Just catching up before the build starts
I thought I would just get some of the drawings, pictures, and notes into the blog as we prepare to build over the Christmas holiday. We have been scrounging and order parts since October in an attempt to have everything we might need to complete the printer by January 1, 2010.
In advance thanks to everyone that has contributed to the Reprap project. Your thinking makes us think.
In advance thanks to everyone that has contributed to the Reprap project. Your thinking makes us think.
Quick Design Notes #1
Trash compactor screws will make a better Z and we will stick with a faster cable or belt drive on X.
A 36" plotter for the last axis has been found.
the lead screw for the table axis. I pulled two long screws out of dads old trash compactor.
A new source for a granite base is old pool tables
Lin Engineering 4218L-01D-02 bipolar stepper motor Item: 28M063 Price: $8.95
makerbot mostly assembled electronics
misc. electronics parts from Mouser and Digikey
Pullys and belts from Stock Drive Products and Sterling Instrument.
A 36" plotter for the last axis has been found.
the lead screw for the table axis. I pulled two long screws out of dads old trash compactor.
A new source for a granite base is old pool tables
Lin Engineering 4218L-01D-02 bipolar stepper motor Item: 28M063 Price: $8.95
makerbot mostly assembled electronics
misc. electronics parts from Mouser and Digikey
Pullys and belts from Stock Drive Products and Sterling Instrument.
steper motors from the plotter
Engine bipolar
Pitch angle: 1.8 degree
Voltage: 2.8 VDC
Current: 1.1 A / phase
Number of windings: 4
Winding resistance:
Winding key: 2 x 2.8 ohms
Winding Auxiliary: 2 x 26 ohm
Inductance coils: 4 x 6.5 mH
Torque: 0.4 Nm
Overall dimensions: 57x57x78mm
Weight: 0.44 kg
LEAD: 8 wires
Manufacturer: Shinano Kenshi CO., LTD. Japan
Symbol: 52H10
Price: 75 zł
11.09.2009
Paasche Nozzles
I think that I have found a great series of nozzles for the project. The Paasche airbrush nozzles are precise and fairly inexpensive. They have a nice multi angle taper on the inside Multiple nozzle orifice dimensions and sell for around $7.00
The small square ones are from an airbrush. The medium size is from their A series industrial gun and the big one is a C series. You can almost see the nice taper on the inside of the C series.
The small square ones are from an airbrush. The medium size is from their A series industrial gun and the big one is a C series. You can almost see the nice taper on the inside of the C series.
10.13.2009
Duct tape repstraping - rapid prototyping the project together.
Here are some photos of this years repstrap thinkaweek project. It was a quick mock up of all the parts found so far. It gave some size and perspective of how to build the project. It was fairly complete for duct tape and sticks.
10.08.2009
thinkaweek 2009
Our goal will be to produce a repstrap machine based on the reprap designs. We have already begun scrounging parts and thinking about how to go about building the robot.
Subscribe to:
Posts (Atom)