Silhouette (original) not finding second registration mark

[peterdc]

I have a Silhouette QuickCutz, also referred to as the Silhouette Original; however, I believe it is the same machine as the Craft Robo CC200-20. This machine uses "Type 2" registration marks, which do not have a square in the upper right, but another "L" corner.

I've been able to get this to work in Sillouette Studio and have modified the template to work with Type 2 marks. Using inkscape-silhouette I have been able to detect the first registration mark, but the machine then scrolls continuously (well past the end of the sheet and cutting mat).

Suggestions for how to troubleshoot this and where to look in the code would be appreciated.

Thank you very much for making this plugin, I've had great success cutting without registration marks and really appreciate that my many year old machine is supported for use with Inkscape.

[t0b3]

@peterdc thank you for the flowers.
I guess it might be the best though not easiest way to do some usb sniffing.
... alternatively you may find some documents, though I can't say whether this applies to your model or not

[EtherGraf]

The relevant section of the code which starts the regmark search is in the following place.

inkscape-silhouette/silhouette/Graphtec.py

Lines 1306 to 1333 in 937dba0

	if regmark:
	# after registration logically (0,0) is at regmark position
	# compensate the offset of the regmark to the svg document origin.
	#bb = s.find_bbox(pathlist)
	#print("bb llx=%g ury=%g" % (bb['llx'], bb['ury']), file=s.log)
	#regoriginx = bb['llx']
	#regoriginy = bb['ury']
	print("bb regoriginx=%g regoriginy=%g" % (regoriginx, regoriginy), file=self.log)
	offset = (offset[0] - regoriginx, offset[1] - regoriginy)
	# Limit the cutting area inside cutting marks
	height = reglength
	width = regwidth
	self.send_command("TB50,0") #only with registration (it was TB50,1), landscape mode
	self.send_command("TB99")
	self.send_command("TB52,2") #type of regmarks: 0='Original,SD', 2='Cameo,Portrait'
	self.send_command("TB51,400") # length of regmarks
	self.send_command("TB53,10") # width of regmarks
	self.send_command("TB55,1")
	if regsearch:
	# automatic regmark test
	# add a search range of 10mm
	self.send_command(self.automatic_regmark_test_mm_cmd(reglength, regwidth, regoriginy - 10, regoriginx - 10))
	else:
	# manual regmark
	self.send_command(self.manual_regmark_mm_cmd(reglength, regwidth))

Have a a look there as a starting point.

Maybe your first try should be to change the regmark type in line 1322