Thread: Z axis error woes
I wasn't keeping this a secret - my 'post 11' on this thread yesterday alluded to this!
the thing is I'm likely to be coughing up for a better machine (which will come with very good stepper drivers), so just need to limp on investigating as best I can ...probably until the chap I'm buying off has more machines in stock (22nd feb)
oh...btw - All your jokes are falling ahem 'flat' :heehee:
Last edited by HankMcSpank; 08-02-2012 at 10:38 PM.
LMAO . . .Can't come back at that one Poz. . :clap:
Hank what about just lifting the holders and soldering the QFP's directly to board?
Thanks Jazz at least it was us not STEPPING out of line here.......:naughty:.....My last one promiseIf the nagging gets really bad......Get a bigger shed:naughty:
Jazz your as bad as me not reading it all as well! Apologies to Hank:whistling:If the nagging gets really bad......Get a bigger shed:naughty:
It was my stepper board after all. This mnorning I managed to wire in a nasty Chinese TB6560 based stepper board (in place of my easy-cnc 3 axis board).....selected 1/8 microstepping, calibrated my axises -BINGO! (so as suspected a combination of low axis resolution & then missed steps which was causing large errors on my Z axis (& likely the other axises too)
I'm now quite content with the results, certainly the SOT23-5 (which only has 0.4mm of space inbetween the pins!) is fine by me....
(the pic below is massively magnified - that main IC toward the middle of the photo is an SOIC-14 package ...which is just about 8mm long)
(the stray islands of copper you see randomly peppered about the board - eg just above & below the SOT23-5 pads - I'm not worried about them, so it's not in my g-code to remove them)
Thanks for all your input....it's nice to put this one behind me!
Last edited by HankMcSpank; 09-02-2012 at 12:46 PM.
Result looks great from here. What V-cutter did you use (angle, flat width)?
That was a cheap carbide V cutter from China - 20 degree angle, 7500rpm (ie the fastest my spindle goes), about 0.15mm depth)
Grand job Hank and good to see you are on your way again. Well doneIf the nagging gets really bad......Get a bigger shed:naughty:
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