Build your own VR conditioner
#23
Boost Pope
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I've never tried it without all of the above, but I expect you could probably forego the expensive stereomicroscope with a decent watchmakers's loupe or head-mounted magnifier.
But, in all seriousness, surface-mount parts gets an undeservedly bad rap from people who are needlessly intimidated by them. Yes, you need different tools from those used for through-hole parts, but the skills are basically identical. You just use less solder and thinner tips.
Last edited by Joe Perez; 08-28-2015 at 11:59 PM.
#26
Boost Pope
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That's probably why SMC seems scary. Pick up some .015 solder (eg: Kester 8806 / 9703, depending on your flux preference) and whatever the smallest tip Weller makes is. I honestly can't remember exactly which tip I used to use- it was a Metcal iron we had at work. Very convenient for this sort of thing, as the tips were quick-change. You just yank one out with pliers, shove a new one in, and it's up to temp and ready to go in about 5 seconds. I miss that iron.
#28
Aidan,
Can you explain why your parts list resistor values differ from the schematic?
You list a 1k resistor, but provide the digikey P/N for a 100k resistor?
It looks like you are only working with the Crank/Cam Hall or VR portion of the circuit; if i were to assemble this, I'd ignore the MAX9939 chip and that whole portion of the board?
https://svn.code.sf.net/p/rusefi/cod.../Schematic.pdf
Can you explain why your parts list resistor values differ from the schematic?
You list a 1k resistor, but provide the digikey P/N for a 100k resistor?
It looks like you are only working with the Crank/Cam Hall or VR portion of the circuit; if i were to assemble this, I'd ignore the MAX9939 chip and that whole portion of the board?
https://svn.code.sf.net/p/rusefi/cod.../Schematic.pdf
#32
I'm just waiting on my parts now and trying to find a good soldering iron to buy. After looking at the Racelogic TC boxes and the variable %slip controllers they have, I got to wondering if this were possible with the MS3.
It seems like it is possible, given that there is an option under Advanced Engine -> Traction Control External %slip Input. This setting shows a chart where you can enable a 0-5V input and adjust the %slip allowed based on the **** voltage %. I looked around and ended up settling on a 6 position, dual pole rotary switch so I can put 1k resistors between each position on the switch.
That way, I'll have 0V, 1V, 2V, 3V, 4V, 5V (in theory anyway). I will then be able to hopefully set the **** positions to OFF(100% slip), WET (0% slip), 5%, 10%, 15%, 20%. Just like the Racelogic manual adjuster instead of the super fancy digital adjuster that has nearly infinite control. I chose the 2 pole switch so I can also have an LED indicator lamp for the **** position/mode.
It seems like it is possible, given that there is an option under Advanced Engine -> Traction Control External %slip Input. This setting shows a chart where you can enable a 0-5V input and adjust the %slip allowed based on the **** voltage %. I looked around and ended up settling on a 6 position, dual pole rotary switch so I can put 1k resistors between each position on the switch.
That way, I'll have 0V, 1V, 2V, 3V, 4V, 5V (in theory anyway). I will then be able to hopefully set the **** positions to OFF(100% slip), WET (0% slip), 5%, 10%, 15%, 20%. Just like the Racelogic manual adjuster instead of the super fancy digital adjuster that has nearly infinite control. I chose the 2 pole switch so I can also have an LED indicator lamp for the **** position/mode.
#34
SADFab Destructive Testing Engineer
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I'm just waiting on my parts now and trying to find a good soldering iron to buy. After looking at the Racelogic TC boxes and the variable %slip controllers they have, I got to wondering if this were possible with the MS3.
It seems like it is possible, given that there is an option under Advanced Engine -> Traction Control External %slip Input. This setting shows a chart where you can enable a 0-5V input and adjust the %slip allowed based on the **** voltage %. I looked around and ended up settling on a 6 position, dual pole rotary switch so I can put 1k resistors between each position on the switch.
That way, I'll have 0V, 1V, 2V, 3V, 4V, 5V (in theory anyway). I will then be able to hopefully set the **** positions to OFF(100% slip), WET (0% slip), 5%, 10%, 15%, 20%. Just like the Racelogic manual adjuster instead of the super fancy digital adjuster that has nearly infinite control. I chose the 2 pole switch so I can also have an LED indicator lamp for the **** position/mode.
It seems like it is possible, given that there is an option under Advanced Engine -> Traction Control External %slip Input. This setting shows a chart where you can enable a 0-5V input and adjust the %slip allowed based on the **** voltage %. I looked around and ended up settling on a 6 position, dual pole rotary switch so I can put 1k resistors between each position on the switch.
That way, I'll have 0V, 1V, 2V, 3V, 4V, 5V (in theory anyway). I will then be able to hopefully set the **** positions to OFF(100% slip), WET (0% slip), 5%, 10%, 15%, 20%. Just like the Racelogic manual adjuster instead of the super fancy digital adjuster that has nearly infinite control. I chose the 2 pole switch so I can also have an LED indicator lamp for the **** position/mode.
#35
Am I wrong to assume that when turning left or turning right, both of the inside wheels will slow the same amount?
http://api.ning.com/files/p5DfxSv2mk...ackGuidev1.pdf
This guide gave me the basics and the idea for the LEDs and how to do the fixed voltage steps. I hope it works, I used to know some electrical things, now I don't remember ****.
He uses this switch for mode switching. MD00L1NCQD C&K Components | CKC7012-ND | DigiKey
#36
I'm using this rotary pot for lunch control.
P16NM103KAB15 Vishay / Sfernice | Mouser
Kind of expensive, but it was a aluminum **** and looks good.
P16NM103KAB15 Vishay / Sfernice | Mouser
Kind of expensive, but it was a aluminum **** and looks good.