Clarification of parts required (and sourcing)
Posted by Yonderboy
|
Re: Clarification of parts required (and sourcing) August 25, 2012 07:11AM |
Hey Sublime... so I tried wiring up the LCD using the little shield board you made for me. It worked just great, first time out. Thanks!
The only problem I'm having now is with wiring my encoder. I think the connections are pretty standard... two pins on one side, three pins on the other, and the center clips are grounds, however Suntek doesn't supply any useful documentation of it. I tried wiring it the same as was done in the tommyc-reprap post you linked. However, in his design, he uses only three connectors going back to his RAMPS, not the four you use... so there must be a significant difference in how you wire them.
You have the four pins: gnd, click, 1, and 2 pretty clearly labeled on the RAMPS, but I'm not clear on what pins on the encoder I'm connecting those to. In tommyc's case, he's grounding out two of those side pins, but when wiring it like he did and adding a ground wire, I'm getting weird behaviour out of the encoder. I must have wired it wrong.
Can you supply a detailed diagram of how you're preparing the encoders with the wiring? Here's the image of mine again for reference. Thanks.
The only problem I'm having now is with wiring my encoder. I think the connections are pretty standard... two pins on one side, three pins on the other, and the center clips are grounds, however Suntek doesn't supply any useful documentation of it. I tried wiring it the same as was done in the tommyc-reprap post you linked. However, in his design, he uses only three connectors going back to his RAMPS, not the four you use... so there must be a significant difference in how you wire them.
You have the four pins: gnd, click, 1, and 2 pretty clearly labeled on the RAMPS, but I'm not clear on what pins on the encoder I'm connecting those to. In tommyc's case, he's grounding out two of those side pins, but when wiring it like he did and adding a ground wire, I'm getting weird behaviour out of the encoder. I must have wired it wrong.
Can you supply a detailed diagram of how you're preparing the encoders with the wiring? Here's the image of mine again for reference. Thanks.
|
Re: Clarification of parts required (and sourcing) August 25, 2012 07:32AM |
His fourth connection is later in the instructions and goes to ground.
In your picture.
Top left is ground.
Top right is click.
Bottom left is 1 or 2
Bottom center is ground
Bottom right is 1 or 2
This is how I wire it.
The middle pin is soldered to the back of the encoder body (this must be done with a hot iron very quickly on a clean backing with flux). If you do this and take to long to solder it you could damage the encoder.
This how I solder the one that is in the top left of your picture. Note it is soldered to the back of the encoder body as well as to the ground wire.
This is how both look.
In your picture.
Top left is ground.
Top right is click.
Bottom left is 1 or 2
Bottom center is ground
Bottom right is 1 or 2
This is how I wire it.
The middle pin is soldered to the back of the encoder body (this must be done with a hot iron very quickly on a clean backing with flux). If you do this and take to long to solder it you could damage the encoder.
This how I solder the one that is in the top left of your picture. Note it is soldered to the back of the encoder body as well as to the ground wire.
This is how both look.
| FFF Settings Calculator | Gcode post processors | Geometric Object Deposition Tool Blog |
| Tantillus.org | Mini Printable Lathe | How NOT to install a Pololu driver |
|
Re: Clarification of parts required (and sourcing) August 27, 2012 06:08AM |
So I spent more time on the encoder tonight. In my case (because I wired them myself) I didn't have a convenient little black four pin connector handy at first, so my first encoder had been wired with four separate jump wires. That one didn't work. The second one was a four-pin connector that I had hacked of one of the ends of the "professional made motor cables" that came with my RAMPS kit from RepRapDiscount.com... but that second one didn't work either.
Finally in a fit of frustration, I built a third one still from another new encoder tonight. This one, I used four separate jump wires so that I could confirm the connections were fine and then swap around the pinouts at the board end should I need to. I even extracted the female connectors out of the end of the jump wires' connectors so that I could use those to solder to the terminals on the encoder for an even more positive connection (which I would later slide heatshrink tubing on to protect). The assembly went fine as you can see here:
Probing around with a multimeter, everything is connecting exactly as it should, and nothing is grounding out that shouldn't (that had happened accidentally with a stray blob of solder on my second encoder, before I found that problem and removed that bridge).
I'm still getting no love. Clicking works usually, but most of the time I get nothing on rotation. Now and again I get the flicker of an arrow before the menu options, and occasionally I can get the option to change, bit it's still not working properly and I'm being driven slowly nuts by this. Any chance you can bring out a working encoder for me to buy off you on the build day this week?
Finally in a fit of frustration, I built a third one still from another new encoder tonight. This one, I used four separate jump wires so that I could confirm the connections were fine and then swap around the pinouts at the board end should I need to. I even extracted the female connectors out of the end of the jump wires' connectors so that I could use those to solder to the terminals on the encoder for an even more positive connection (which I would later slide heatshrink tubing on to protect). The assembly went fine as you can see here:
Probing around with a multimeter, everything is connecting exactly as it should, and nothing is grounding out that shouldn't (that had happened accidentally with a stray blob of solder on my second encoder, before I found that problem and removed that bridge).
I'm still getting no love. Clicking works usually, but most of the time I get nothing on rotation. Now and again I get the flicker of an arrow before the menu options, and occasionally I can get the option to change, bit it's still not working properly and I'm being driven slowly nuts by this. Any chance you can bring out a working encoder for me to buy off you on the build day this week?
Sorry, only registered users may post in this forum.