The new 24VDC 240W power supply arrived today. I’m very impressed with powerbox. I ordered the power supply yesterday and it turned up today! This power supply was chosen so that the stepper motors will delivery more torque.
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- 24VDC 240W Power Supply
The power supply has been wired up to grblShield and used for a test run.
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- The stepper motors wired into grblShield.
Jogging in all axes worked fine after tuning the current limit. I ran a couple of test programs to move in 50 mm diameter circles in the XY and XZ planes.
The limit switches are installed but not wired up yet. The X and Y axes have two limit switches, one for each direction of travel. The Z-Axis has only one limit switch which will be used for homing. When homing the Z-Axis will move away from the table.
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- Z-Axis has only one limit switch to home the axis away from the table.
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- X-Axis has two limit switches. One for each direction.
When assembling the X-Z axes I found that the Z-Axis carriage fouled on a couple of bolts. The specified length was too short and the bolts I replaced them with were too long. A die grinder and 10mm carbide burr quickly fixed the problem.
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- The bolts securing the Z-Axis carriage were a bit long and needed clearance.
To anchor the timing belts for the X and Y axes 20 x 20 x 3 aluminium angle with an eye bolt and the dowel and cable tie method of clamping. This provides easy adjustment of the belt tension and the aluminium angle is very rigid.
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- Y-Axis Timing Belt Anchor
Video of the initial testing will be posted soon.
what the data sheet of grbl shield??????
Link here:
https://www.synthetos.com/project/grblshield/