Home › Forums › TinyG › TinyG Support › Zeroing/ test run
- This topic has 26 replies, 2 voices, and was last updated 8 years, 8 months ago by cmcgrath5035.
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March 23, 2016 at 5:57 pm #9481cmcgrath5035Moderator
You Gdrvie folder or file needs to be shared.
You will receive an email from GoogleMarch 23, 2016 at 5:58 pm #9482aspadavecchiaMemberit should be shared. i received the email and shared it to two people.
March 23, 2016 at 6:31 pm #9483cmcgrath5035ModeratorYes, I now have it.
When I look in that file on Gdrive, I don’t see what you describe above.
I see
$1tr=1.25
$2tr=1.25
$4tr=1.25Are you sure you posted the current settings?
If so
set
$1tr-60
$2tr=60
$4tr=60
$xtm=x size of your machine (1500?)
$ytm=y size of your machine (1500?)Soft limits will still not be in effect, but have $xtn=$xtm=0 might shut off the axis.
March 23, 2016 at 6:46 pm #9484aspadavecchiaMemberi may have uploaded the wrong settings. the belt is a GT3 with a 25 tooth gear. The machine is a 750X1500. X=750 and Y=1500. If i am at front left corner the X would be my horizontal axis, correct? I am going to see if i can attach a picture in another post. If i can attach the picture I am considering the Y the longest axis.
March 23, 2016 at 6:51 pm #9485aspadavecchiaMemberMarch 23, 2016 at 8:55 pm #9486aspadavecchiaMemberI am home and just pulled the current settings from the tinyG. Here they are.
https://drive.google.com/file/d/0B07DBEG7oJi7SUtpcXJiNWtwWEk/view?usp=sharing
March 23, 2016 at 8:58 pm #9487cmcgrath5035ModeratorWe need to do the permissions dance again, watch the email
March 23, 2016 at 9:00 pm #9488aspadavecchiaMemberI just changed it to sharing I just figured out how to change it. Sorry about that, still trying to figure out how to use the Gdrive.
March 23, 2016 at 9:04 pm #9489cmcgrath5035Moderatori may have uploaded the wrong settings. the belt is a GT3 with a 25 tooth gear. The machine is a 750X1500. X=750 and Y=1500. If i am at front left corner the X would be my horizontal axis, correct? I am going to see if i can attach a picture in another post. If i can attach the picture I am considering the Y the longest axis.
This is a difficult subject. For ShapeOko folks, 0,0 is typically the “lower left” corner and for Ox folks it is normally the “upper right”, but then you will ask “relative to what” and I will say, I don’t know because the machines are more or less symmetrical.
I suggest zero your machine in the middle, then see if +X and +Y makes sense.
For most folks, Y is the longer axis, but even that is not really fixed.
Typically X has one stepper, Y has two, if that helps.
March 23, 2016 at 9:06 pm #9490cmcgrath5035ModeratorWhat you just posted looks same as three hours agoo, all $trs = 1.25mm
March 23, 2016 at 9:37 pm #9491aspadavecchiaMemberok so I rechecked the gears and changed the $tr to 60. It seems to move 19.5mm with the command of G1 Y20 F800, so it is darn close. I really appreciate the help. Do you have any other suggestions.
March 24, 2016 at 6:27 am #9492cmcgrath5035ModeratorYou have a big machine – Y range 1500 mm.
Set a (0,0) near the mechanical Y0.
Do a
G1 Y1000 F800
moderate speed long move,
measure the actual distance with a good meter stick.
The adjust $_tr on your Y motors by *(distance_measured/1000).Using your example above , you would reset $tr to 60* (19.5/20)=58.5.
Repeat this until you are satisfied with accuracy.
Then use the same $tr for Xaxis, retest there. -
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