input #4 appears to be on

[don62]

am stumbling through the v4g upgrade and have encountered a problem: when i start the shopbot program it says" the remote stop button connected to input #4 appears to be on and needs to be checked." i do not use the remote stop button and there is nothing connected to to input number 4.

tech support is on answering machine, so i cannot ask them what to do.

thanks
don

[zeykr]

Leave support a message and they'll call you back.

Under VN command in sb3 look at Switch#4 STOP Type setting. You can set this to not used or normally open and probably get it going, though adding an estop is probably a good idea.

[jerry_stanek]

If you have no e stop you can change the input switch to normally open and see if that works

[don62]

have left a couple of voice mails with shopbot - they are not answering and have not returned either call - maybe shut down for Tday.

made sure nothing is connected to terminals - went to vn and made sure it was set to closed; however either setting made no difference.

also thought it may be a bad space bar - changed keyboard to no avail.

there is confusion in the upgrade proceedures that may be contributing to my problem:
under Install the USB driver - says to not plug in the control box until you have installed the latest version of sb software - did that. then it tells you to connect the control box and turn it on. it then tells you to download and install the prtalpha software - which is the same software you just downloaded and installed.

i must have missed something somewhere

don

[Brady Watson]

Run the UR command first. Cycle thru the prompts with the enter key 3 times (or press Yes/OK) until you get to the dialog box that let's you choose your machine. Look in the folder list for Settings for Older ShopBots, then select PRT_standard Tools, then pick your tool from the list.

If you are doing a 4G upgrade, then your tool is NOT AN ALPHA. After you pick your correct configuration, run the UI command to update the firmware.

THEN - if your Input4/E-stop indicator is STILL blinking, type in the VN command and change your Switch#4 from a normally closed to a normally open switch. Then everything should be fine.

-B

[don62]

okay - had a great conversation with Ryan at shopbot and changing the vn command solved the problem. and i must admit i did go back and do what Brady told me to do - if only we could follow Brady's advice the first time.

Zeykr - you had the correct advice on the vn - thanks

now to the next challenge: my unit has the 20 tooth gears. the unit values were: 127.3240 for the xy and 1018.592 for the z. the values of 1833.465 and 2291.831 are not right for my machine - Ryan said set both xy and z to 636.6198. my question is should not the z value be different - higher than the xy values?

plan to run some test tomorrow.

and Brady - i am getting 'giddy' - thought the machine was going to fly into the neighbors - speed was set to 6! - your looking at a guy who thought 2.5 was speeding

have a great t day
don

[Brady Watson]

Don,
List the motor label part number OR take a pic of any X or Y motor, and one of the Z. It sounds to me like you have a PR with ballscrew Z?

-B

[don62]

Brady,

oriental motor vexta PK299-01AA - all four motors. do you need part numbers?

the orginal owners manual states: your shopbot has: 20 tooth pinions on the x and y axes. your unit value are 127.3240. 20 tooth pinoins on the z axis. your z unit value is 1018.592. this is how they have been set.

always appreciate your help
don

[Brady Watson]

These are direct drive motors - meaning that there is no gear reduction on them. (Assuming you don't have one of the early belt reduction boxes...) So - unit values should be identical on all 3 axes, assuming that they ALL use a 20T pinion, and the same PK299s.

Have you tried Ryan's suggested Unit Values? They seem to be correct if you take a 3.6:1 gearbox UV with 20T pinion and 'take the gear ratio out of it' to get direct drive numbers, by dividing by 3.6. When you divide 2291.831 by 3.6, you get the number Ryan gave you.

How far off is the movement using this number? Is the tool going too far or is it not going far enough? A vbit in the router and a tape measure laying down the X axis helps to figure out what's going on.

-B

[don62]

ran out of time today - plan to run tests tomorrow - i think they are probably right. the confusion/question to me is why is the z value now the same as the xy value when they were different before?

[Brady Watson]

Without knowing what your Z axis configuration was before, it is hard to answer. It could be that the Z used a different motor driver than the rest, or was setup to run at more microsteps than the others - I agree, it doesn't make much sense, but the UV numbers Ryan gave you should work on all 3. If not, you can sneak up on the right UV by measuring commanded distance vs actual distance. The UV is the number of microsteps that is commanded to move the tool 1 inch.

-B

[jerry_stanek]

do you have the rack and pinion z or a ball screw

[don62]

rack and pinion - same as the x and y rails