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Equipment/Stratasys FDM 1650: Difference between revisions

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Equipment/Stratasys FDM 1650 (view source)

Revision as of 09:02, 18 October 2011

358 bytes added ,  18 October 2011
→‎TODO
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==TODO==
==TODO==


===Hardware===


* One or more driver boards thought to be faulty, possibly requiring transistors or capacitors to be replaced.
*Driver boards reported to be faulty
**There is a report below that the self-test passes. Does this not include driver boards ? Does it now fail ?
**but all axes move - it's not clear that any repairs are needed.
***The self-test (press both X cursor buttons while switching on) does indeed cause several movements but then hits the side of the cabinet. Therefore not completed.  
 
***Feed Home command (ACL interface) seems to do something sensible
*Self-test starts to work, but runs extruder into left hand side. Be cautious
***Manual XYZ movements all operate
**homing operation appears to work in X/Y if done separately
***Homing Z tries to run substrate into extruder, was stopped. Z axis limit switch needs examining.
**investigate setup limits
**Document state of boards
 
**Contact Ally to find out details of common faults
*Homing Z tries to run substrate into extruder
**Repair if possible
** Examine Z axis for reference or limit switches, diagnose.
 
*Contact Ally to find out details of common faults


* Possibly document connections from the automove unit -- at some point, we're going to need to figure out how to drive the heaters/extruder from the automove.  Might as well do as much as possible now, while it's open anyway.
* Possibly document connections from the automove unit -- at some point, we're going to need to figure out how to drive the heaters/extruder from the automove.  Might as well do as much as possible now, while it's open anyway.
** Is anything connected to the 38v coil drivers, the DE-9?
** Is anything connected to the 38v coil drivers, the DE-9?
** What is connected to the digital I/O connector, the 36-pin female "printer" port?
** What is connected to the digital I/O connector, the 36-pin female "printer" port?
===Operations===


* Calibrate
* Calibrate
**Find documentation for this
*Measure positioning precision
*Find out if drivers are microstepping.
*Find out stepper motor drive levels (current and voltage)
**Stepper motor signals rest at 20V - is this the supply ?
===Software===
*Run original software and capture the commands it's sending.
**Doesn't really matter if this works as long as the data is sent
**Disconnect stepper motors if it seems likely to exceed permitted travel
**Determine normal move sequences
**Note any non-XY operations to determine Z positioning and extruder control


* If we wanted to use the stratasys with skeinforge, we'd need to get skeinforge to output appropriate movement commands or, perhaps more maintainably, translate the G-code output into ACL. This might not be too difficult : skeinforge seems to use a very limited section of G and M codes, notably
*Write simple sequences to test understanding of ACL
 
 
*If we wanted to use the stratasys with skeinforge, we'd need to get skeinforge to output appropriate movement commands or, perhaps more maintainably, translate the G-code output into ACL. This might not be too difficult : skeinforge seems to use a very limited section of G and M codes, notably


  G1 linear move
  G1 linear move
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*Write translator to perform the above conversion
*Write translator to perform the above conversion
* ???
* Profit


==DONE==
==DONE==
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