Multiple ground wires to a single location?

[kibrickj]

Anybody out there use the deutch/te rail system on the firewall? I thought it might make a nice single point ground system on the firewall instead of hte forest of tabs, but seemed like if I used the rails, I couldn't flush mount. If using the flange mount system, punching more holes through firewall. Just seems like forest of tabs ends up being a lighter, simpler system despite the obvious awesomeness of the deutch solution...

https://www.te.com/content/dam/te-c...tj-common-termination-system-presentation.pdf

 

[wirejock]

Anybody out there use the deutch/te rail system on the firewall? I thought it might make a nice single point ground system on the firewall instead of hte forest of tabs, but seemed like if I used the rails, I couldn't flush mount. If using the flange mount system, punching more holes through firewall. Just seems like forest of tabs ends up being a lighter, simpler system despite the obvious awesomeness of the deutch solution...

https://www.te.com/content/dam/te-c...tj-common-termination-system-presentation.pdf

KISS. Tough to beat the B&C FOT.

Ground Block 24/24-Tab Firewall Kit - B&C Specialty Products

Discourage those pesky (and “noisy”) electrical gremlins and ground-loops by using our Ground Blocks as a centralized grounding system. These are hand-made from .04” flat brass stock, sheared to size, with 24 or 48 Fast-On tabs securely soldered into place. Ships complete with installation...

bandc.com

 

[kibrickj]

KISS. Tough to beat the B&C FOT.

Ground Block 24/24-Tab Firewall Kit - B&C Specialty Products

Discourage those pesky (and “noisy”) electrical gremlins and ground-loops by using our Ground Blocks as a centralized grounding system. These are hand-made from .04” flat brass stock, sheared to size, with 24 or 48 Fast-On tabs securely soldered into place. Ships complete with installation...

bandc.com

Yeah. Thanks Larry. I love deutch connectors, but I think you are right for this application. As effective, lighter, cheaper. KISS.

 

[Watzlavick]

Anybody out there use the deutch/te rail system on the firewall? I thought it might make a nice single point ground system on the firewall instead of hte forest of tabs, but seemed like if I used the rails, I couldn't flush mount. If using the flange mount system, punching more holes through firewall. Just seems like forest of tabs ends up being a lighter, simpler system despite the obvious awesomeness of the deutch solution...

https://www.te.com/content/dam/te-c...tj-common-termination-system-presentation.pdf

See posts 37 and 39. The rail system doesn't work with grounding blocks as they have a stud on the back side. The rails are more appropriate for junctions of of multiple wires. For grounding, I used a small tinned copper plate for all the ground blocks with studs, then a fat jumper to the firewall.

 

[kibrickj]

See posts 37 and 39. The rail system doesn't work with grounding blocks as they have a stud on the back side. The rails are more appropriate for junctions of of multiple wires. For grounding, I used a small tinned copper plate for all the ground blocks with studs, then a fat jumper to the firewall.

Yeap. Thank you for response. Love this community. I came to same conclusion based on your photo +. I think for the state of my build I'm marginally better off sticking with star grounding at the firewall with the forest of tabs, despite absolutely loving deutch connectors and the recently introduced to me CTJ series. Had I known about them earlier, I would have created an isolated avionics ground bus and added a fat jumper to the firewall too. Oh well. Have to say, nice stuff though.

 

[Halleffect]

I have two grounding blocks (forest of tabs) just behind the instrument panel. Total of 40 tabs available. I also have many, many leads needing grounding. While I believe I have more tabs than leads needing to be grounded, it also seems like I could piggyback several leads onto a single tab to leave room for the future. What limitations might there be to doing this, other than making things crowded around the multi-lead tabs?

Keep in mind if you're counting all of the shield grounds, those typically get grounded to the dsub backshells so they don't occupy a grounding tab. I have a full panel and a 48 forest of tabs and used 36.