Still can't get my TAP with Can to work.

[mbunjes]

Set up : Octopus v1, SB2040 v2, Optotap v1. Canboot and Canbus installed, no errors.

I first had the Optotap v2.4.1 connected to gpio25, gnd on the front connector and 5V from the endstop connector on the SB2040. I had soldered the solder bridge on the Optotap for 5V.

The leds on the octotap worked but ENDSTOP_QUERY did not report a working endstop.

I then aquired a octotap v1, connected it the same way : no leds and no z endstop. Connecting all the wires to the 5V endstop connector and gpio28 : no endstop.
 

I'm out of ideas, what could the issue be ?

Decided to test Optotap with external power supply : LED llt up red when I interrupted the op0tical switch. Isn't it supposed to turn blue when it's not triggered ?

 

Edited July 2, 2023 by mbunjes

[mbunjes]

Ok, it finally turned out to be something as stupid as a pull-up sign in front of the pin. BTW the Optotap v1 did not work.

[mvdveer]

9 hours ago, mbunjes said:

BTW the Optotap v1 did not work.

Just installed a SB2040 Canbus on the Sitchwire revival build, (Octopus v1.1 with CanBoot).

Converted to TAP and used the V1 Optotap PCB, connected to 5V port (gpio28) - no issues at all - worked first time.

No soldering, no bridging. As I understand it, the Optotap v1 had no issues when connected to 5V, only to 24V. My experience in 4 installs now. 

[mbunjes]

I installed the v1 exactly like that and it didn't work, no leds, no endstop change, nada. installed the 2.4.1 again on 5v on gpio 25 and it worked. probably a faulty Optotap.

[claudermilk]

I don't know about v1, but I had trouble with V2.4. But V2.4.1 has worked perfectly. The LED is red with the sensor triggered (Tap at rest with tab breaking sensor) and blue when Tap is lifted.

[mbunjes]

On 7/3/2023 at 12:10 AM, mvdveer said:

Converted to TAP

Is this working on the Switchwire or do you have a y axis conversion that makes the bed more rigid ?

[mvdveer]

11 hours ago, mbunjes said:

Is this working on the Switchwire or do you have a y axis conversion that makes the bed more rigid ?

Had to make the bed more rigid by adding two additional Y-Rails. TAP is working with very low variances in the corners.

As time is a factor, I have not yet fully tested, just some quick preliminary tests.

Will keep you updated.

[mbunjes]

Does this still use the Prusa Y axis carriage ?

[mvdveer]

18 hours ago, mbunjes said:

Does this still use the Prusa Y axis carriage ?

The build I am doing it does. Have seen variations on discord where 4-6mm alumnus plates have been used. @Penatr8tor suggested stiffening the corners of the bed, which I will do with a solid square aluminium, replacing the spacers.

[RopusLongus]

Now that build looks familiar to me .

But I use 2 motors there

Edited August 4, 2023 by RopusLongus

[Glengus]

Glad to hear you got it working! Mine is red light when normal then blue when it triggers.