View allAll Photos Tagged 3Dprinter
RepRap Mk2b dual voltage heater circuit board wired for +24V operation with a 10k ohm resistor and a red LED.
Short XY Plate cut from 3mm thick aluminum plate. Short XY plate is based upon the DXF cut file,
xstageshort.dxf
found as a download of Thingiverse Thing 252041,
www.thingiverse.com/thing:252041
Use the short XY plate if you have a short NEMA17 stepper motor such as those MBI uses for their extruders. If you have a stepper motor with a bigger stack, then you may need to use xstagequ_bd.dxf.
The aluminum heat spreader bars are the proper 0.5 inch thick ones MBI uses on the Replicator 1 and 2 series. They provide far more contact area with the thermal barrier tube than the Mk7 style heat spreader bar. Unfortunately, a number of the Mk-style extruder kits provide the Mk7's thinner heat spreader bar (e.g., QU-BD's MBE v9). If you plan on extruding PLA, you want the thicker bar! Otherwise, you will likely experience jams on long duration prints.
Robotdigg.com and dealextreme sell the thicker bars BUT only one of the holes is tapped for M6 threads. Use that hole for the thermal barrier tube. The other hole is smooth bored and will accept a M6 bolt. Cut a M6 bolt to a length of 19 mm. (I do it by threading 4 M6 hex nuts on, cutting flush to the fourth nut, filing the cut end, then removing the nuts. (Having the nuts on helps you clean the cut threads after cutting.)
A hand cut slot has been made in the XY plate with which to affix the heat spreader bar using the cut M6 bolt and a thin M6 hex nut.
WanHao LCD (connector at a better angle)
FlashForge button & SD card module (better job of assembling the pard with the buttons perpendicular to the board)
Ribbon connector is also from WanHao.
21 ‪#‎3DBenchy‬ boats on a single 32-hour ‪#‎3dprint‬.
Read more at: 3dbenchy.com/?p=677
‪‬
WanHao LCD (connector at a better angle)
FlashForge button & SD card module (better job of assembling the pard with the buttons perpendicular to the board)
Two spacers are placed on the upper fastening bolts of the LCD display. This causes the display to tip backwards slightly making viewing while standing in front of the display easier.
21 ‪#‎3DBenchy‬ boats on a single 32-hour ‪#‎3dprint‬.
Read more at: 3dbenchy.com/?p=677
‪‬
21 ‪#‎3DBenchy‬ boats on a single 32-hour ‪#‎3dprint‬.
Read more at: 3dbenchy.com/?p=677
‪‬
Changed the design on the side panels as well to match the Replicator 2 style.
Custom Replicator case increases build height by 100mm.
Fused power inlet. This particular inlet is a Corcom PE0SSSSX0 (Digikey CCM1384-ND) which is rated 10A @ 120VAC, fused, and filtered. It's overkill for this application but I happen to have a few of them and it's convenient to use the same unit everywhere.
21 ‪#‎3DBenchy‬ boats on a single 32-hour ‪#‎3dprint‬.
Read more at: 3dbenchy.com/?p=677
‪‬
Top view of the XY plate with the heat spreader bar mounted. The M6 bolt should not project past the hex nut; otherwise, it may interfere with the face of the extruder stepper motor. Also, try to get the hex nut parallel with the long edge of the heat spreader bar. This also helps prevent any interference with the face of the stepper motor.
The electronics bay with 14.6A 24VDC Meanwell PSU available from WanHao USA, Mouser, and other suppliers.
FlashForge Mightyboard rev E clone board with C20 and Extra FET added. FlashForge peripheral terminals replaced with Phoenix screw down terminals. The stepper driver cards are modified Pololu A4988 Black boards. Modified to work with the Mightyboard replacing the standard Botstep cards. Also, the Pololu boards have been adjusted to support the higher current needs of the X, Y and Z stepper motors.
The wiring for the stepper motors is not yet connected.