I could use some help
-
@deckingman said in I could use some help:
But there is a catch. Because if you use normally open switches and have a wire fall off, as soon as you start a homing move, the carriage will stop (because the firmware "thinks" that the switch has immediately gone open). But it'll also set that as the homing position - even if it';s half way along an axis. If you didn't spot what happened, and started a print, strange things are going to happen because the origin isn't 0,0 but somewhere else. Now there is a way to catch that but it involves conditional gcode and I really don't think it would be a good idea to go down that road at this stage of the game - you have enough on your plate just getting the thing doing basic stuff.
One correction here, otherwise it's a good description of NC vs NO.
Because if you use normally open switches and have a wire fall off, as soon as you start a homing move, the carriage will stop
Should say:
Because if you use normally CLOSED switches and have a wire fall off, as soon as you start a homing move, the carriage will stop
SeemeCNC Rostock Max V3 converted to V3.2 with a Duet2 Ethernet Firmware 3.2 and SE300
-
@fcwilt Oh it's nothing to get excited about. You may recal that I have a failed expansion board and the Duet guys have kindly donated a 6HC main board to replace the two 3HC expansion boards. The deal is that using a 6HC as an expansion board has never been tried in anger, so I'll test it out and we'll work together to resolve any issues that may arise.
But grafting this board onto my machine such that it can connect to the 6 extruders which move on the UV gantry is a major operation. It involves doing away with the AB load balancing gantry (which has no effect on print quality) and removing some frame members which have various cables running though them, as well as extending and re-routing all the wiring that is associated with the two expansion boards. I'm making progress but it's a substantial undertaking.
-
@alankilian Thanks for spotting and correcting that.
-
@fcwilt could you post a picture or two of the monster you're working on?
-
@fcwilt that explains it, when I look at them, with a magnifying glass no less, I have this weird feeling that if I could only see a little bit better, that would be a C!
So here's a mystery: 6-30-22, 4:53:37 PM Event: G28 Y, Error: Go/G1: insufficient axes homed. I was trying to Home Y (after I M119'd the end stops to see if they were present, then M119'd each of them while activating one endstop at a time to see if they were working.
Silly me, I assumed that since they were present and working, I could try to USE THEM!
Mac
-
@mac said in I could use some help:
@fcwilt that explains it, when I look at them, with a magnifying glass no less, I have this weird feeling that if I could only see a little bit better, that would be a C!
So here's a mystery: 6-30-22, 4:53:37 PM Event: G28 Y, Error: Go/G1: insufficient axes homed. I was trying to Home Y (after I M119'd the end stops to see if they were present, then M119'd each of them while activating one endstop at a time to see if they were working.
Silly me, I assumed that since they were present and working, I could try to USE THEM!
Mac
But it was your video that showed your Y axis movement was very erratic leading us to conclude that you needed better steppers.
I have two printers using the board you have and they both work fine. I should make a short video. I will do that tomorrow.
Frederick
-
@fcwilt I will watch it!
-
@mac said in I could use some help:
@fcwilt could you post a picture or two of the monster you're working on?
I don't think Frederick mentioned anything about him working on a "monster". In case you are getting confused between the two of us, my own "monster" is well documented on my blog and YouTube channel which are linked in my signature.
-
@deckingman everyone has their monsters.
7 hours, the last 3 of which were “air printing.”
-
-
System marked this topic as a question
-
System marked this topic as a regular topic
-
This post is deleted! -
I think I am losing my mind or perhaps hallucinating from lack of sleep.
I thought I read posts from you suggesting Mack's endstops were on the high end of his axes.
The last time I saw them, in one of his videos, they were on the low end.
Or did I imagine the whole thing?
Frederick
-
@fcwilt I think they were originally, or at least X was, but now they should be on the low end.
Ian
TronXY X5S with Duet 3 MB6HC and Roto toolboard : Cartesian bed-slinger with Duet 3 Mini 5+ WiFi and 1LC : RRP Fisher Delta v1 with Duet 2 Maestro : Polargraph with Duet 2 WiFi
-
@droftarts said in I could use some help:
@fcwilt I think they were originally, or at least X was, but now they should be on the low end.
Ian
So perhaps I found myself reading near the start of this thread by accident.
That would explain it.
Thanks.
Frederick
-
@fcwilt for the current record, the X-endstop is on the far left of the X-axis, the Y-endstop is at the rear of the printer, right in front of the motor, and the Z-endstop is at the bottom of the Z-axis approximately 6 inches below the X-endstop. This is where they have always been. I will include pictures.
These are in order: X, Y, and Z.
-
@fcwilt no, they’ve always been where they are. We did have a discussion about high and low endstops, which led to setting the X and Y endstops as High in RRF.
I can change that if this visual info suggests all three endstops are in the low position.
I would prefer to do it by editing the config.g Instead of using RRF again.
Mac
-
@mac said in I could use some help:
@fcwilt no, they’ve always been where they are. We did have a discussion about high and low endstops, which led to setting the X and Y endstops as High in RRF.
I can change that if this visual info suggests all three endstops are in the low position.
I would prefer to do it by editing the config.g Instead of using RRF again.
Mac
Hi Mark,
I must have read some out of date information that I thought was NEW information and it just threw me for a bit.
There have been a lot of posts in this thread and I just wanted to verify that I was up to date.
Thanks for confirming that I am not losing my mind (at least not yet).
Frederick
-
@fcwilt you're very welcome. I was hoping to see a video link?
On the end-stops, should all of my endstops be low in rrf?
re: coding them low versus using rrf, can you comment?
Mac
-
@mac said in I could use some help:
@fcwilt you're very welcome. I was hoping to see a video link?
On the end-stops, should all of my endstops be low in rrf?
re: coding them low versus using rrf, can you comment?
Mac
Hi Mark,
Chores took up most of yesterday, the guests arrive today and I still have two things yet to do.
The endstops are physically fine where they are and the configuration is correct if you have changed the wiring from the NO pin to the NC pin.
Frederick
-
@fcwilt cool, enjoy your guests, Amazon is telling me the motors will arrive today.
