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Post by markwisniowski on Feb 18, 2017 15:36:42 GMT
I have read the manual over and over on how to install the y axis homing switch but I'm just not getting it.
Can someone post a photo or 2 on how theirs is installed?
Thanks!
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Post by Derek the Admin on Feb 18, 2017 20:04:26 GMT
I am away from the computer so I can't get you a pic right now, but the switch goes on the underside of the left Y axis extrusion. The horn (the metal thing) faces the back of the machine so it can get engaged by the aluminum spacer on the left underside of the bed.
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Post by aforww on Feb 18, 2017 22:13:24 GMT
I have read the manual over and over on how to install the y axis homing switch but I'm just not getting it. Can someone post a photo or 2 on how theirs is installed? Thanks! Hope this helps. My machine is bolted down so just took these from the top. Should work.
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Post by markwisniowski on Feb 20, 2017 2:26:57 GMT
That works, thanks!
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Post by Scott on Feb 24, 2017 8:22:32 GMT
How did you get the t nuts in the rail? Were they supposed to be installed earlier in the assembly process?
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Post by Derek the Admin on Feb 24, 2017 14:27:49 GMT
These t nuts drop into the already installed extrusion. It's hard to describe, but you sort of place them at an angle and roll them into the slot.
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Post by mikedpp on Mar 2, 2017 6:41:32 GMT
I have a question. I installed the Y homing switch in the location shown which is the front left corner under the bed, but when I try to home with GRBL, the bed moves toward the back of the machine, which is the positive direction in the GRBL software. With the Y homing switch in the front left corner, the machine does not hit the switch and limits out in the homing operation when the bed hits the back of the machine. I thought about spinning the bed around 180 degrees to get the homing switch stop post on the right and relocate the homing switch on the back right side of the machine. An added benefit to doing that would be to create more clearance for the Y belt to travel through the Y belt anchor plate. Before I do all that, I figured I would ask...what did I do wrong? Thanks.
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Post by Derek the Admin on Mar 2, 2017 7:40:57 GMT
Without homing it.... try to move it. Do an unlock with $X. Use the machine controls in UGS with step size of 1 to do a Y- move. The bed should move towards the back of the machine.... meaning it heads in the direction where it will hang off the back. If it is doing the opposite, power everything down. Unplug USB cable from computer. Take the plug for the Y axis stepper motor and flip it around, meaning just turn the plug 180 degrees. The will get the direction right.
I would not modify anything by flipping the bed.
Please let me know if that helps.
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Post by aforww on Mar 2, 2017 10:53:22 GMT
Motor plugged in backwards you silly goose. At least that's what I gather since X and Z home correctly.
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Post by mikedpp on Mar 3, 2017 1:17:12 GMT
Yes, I thought of doing that but I plugged everything in as the instructions indicated. Also the orientation of the on screen Y- and Y+ button in GRBL made me think the Y+ moved the bed out the back of the machine. Now that I know Y+ should move the bed to the front, it will hot the homing switch as I have it installed. Thanks very much guys. I am sorry that I have these remedial questions. I guess I just want to make sure I don't mess this stuff up. Mike
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Post by aforww on Mar 3, 2017 1:18:47 GMT
Yes, I thought of doing that but I plugged everything in as the instructions indicated. Also the orientation of the on screen Y- and Y+ button in GRBL made me think the Y+ moved the bed out the back of the machine. Now that I know Y+ should move the bed to the front, it will hot the homing switch as I have it installed. Thanks very much guys. I am sorry that I have these remedial questions. I guess I just want to make sure I don't mess this stuff up. Mike Don't apologize man. We all start from zero. I had TONS of noob questions. Poor Derek was basically the only one to field them at that point lol.
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kmp
New Member
Posts: 8
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Post by kmp on Aug 27, 2018 17:08:13 GMT
Similar install issue, sort of. The hole for the post the switch is supposed to hit is on the right side of the bed. As near as I can tell I put the bed in according to the pictures but I am guess I am wrong about that. So, do I mount the switch on the right rail (wires long enough?) or do I drill a pilot hole for the post on the left under the bed? Your input greatly appreciated.
Doh
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Post by Derek the Admin on Aug 27, 2018 17:14:57 GMT
Hey kmp. Yes, looking from the front of the machine, the pilot hole for the long post that engages the Y axis homing switch should be on the left side if you were looking at the understand of the bed. It does sound like you have it the other way around, but you should be able to put the switch on the right Y extrusion to compensate. The only catch is that you will need to carefully fold the capacity to the other side of the switch so it mounts properly.
Let me know if that clears it up.
Derek
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kmp
New Member
Posts: 8
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Post by kmp on Aug 27, 2018 18:34:25 GMT
Thanks for the quick response, Derek. I'll look at it when I get back to my digs. I may just decide to carefully drill a "B" pilot hole on the left side, mirroring the one I see on the right. Will let you know how it works out.
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kmp
New Member
Posts: 8
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Post by kmp on Aug 28, 2018 14:51:05 GMT
Drilling a new pilot hole was definitely the way to go. On to the next mistake!
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