Marty Backe Posted March 16, 2018 Share Posted March 16, 2018 So, I just received my new ACM2 motor and ACM2 control board. I'm turning my original 1300wh ACM from a year ago into an ACM2. Not really having much experience with the bullet connectors that Gotway uses for the motor wires, I'm not sure if what I got, in terms of connectors, is correct. I had to pry open the female connector a bit before I could insert the male connector. I was able to push (very hard) them together as you see below, but the fit sure seems tight, and there's no sense of satisfying click or similar sensation. My initial thought is that the control board and motor bullet connectors are not compatible. This is Gotway you know Based on this picture, what do you guys think? Link to comment Share on other sites More sharing options...
Marty Backe Posted March 16, 2018 Author Share Posted March 16, 2018 @Rehab1, do you recall how your bullet connectors came together? Link to comment Share on other sites More sharing options...
Keith Posted March 16, 2018 Share Posted March 16, 2018 1 hour ago, Marty Backe said: Based on this picture, what do you guys think? I’ve never seen bullet connectors like these before? Almost invariably the male connector has the springing and the female is just a gold plated brass tube. With these the springing on the female ought to ensure they stay together and conduct well. If you are at all unsure of them staying together, just put a piece of heat shrink over both plug and socket and shrink it down - you need something to prevent them shorting anyway and that will give you mechanical security as well. It is something we commonly do on model planes and heli’s due to the high vibration they experience. Link to comment Share on other sites More sharing options...
Scott Henley Posted March 16, 2018 Share Posted March 16, 2018 1 hour ago, Marty Backe said: So, I just received my new ACM2 motor and ACM2 control board. I'm turning my original 1300wh ACM from a year ago into an ACM2. Not really having much experience with the bullet connectors that Gotway uses for the motor wires, I'm not sure if what I got, in terms of connectors, is correct. I had to pry open the female connector a bit before I could insert the male connector. I was able to push (very hard) them together as you see below, but the fit sure seems tight, and there's no sense of satisfying click or similar sensation. My initial thought is that the control board and motor bullet connectors are not compatible. This is Gotway you know Based on this picture, what do you guys think? That certainly looks a bit off to me. But then again I’m not as well versed in bullet connections as @Rehab1. . My 2 cents would be to get these castle brand bullets and just switch them all out . Doesn’t take to much time to do the solder work and you can have more peace of mind . Btw...where did you get the motor and pcb? You have to use 84v battery packs too don’t you .. Link to comment Share on other sites More sharing options...
Marty Backe Posted March 16, 2018 Author Share Posted March 16, 2018 29 minutes ago, Scott Henley said: That certainly looks a bit off to me. But then again I’m not as well versed in bullet connections as @Rehab1. . My 2 cents would be to get these castle brand bullets and just switch them all out . Doesn’t take to much time to do the solder work and you can have more peace of mind . Btw...where did you get the motor and pcb? You have to use 84v battery packs too don’t you .. Thanks. If I get a consensus that these aren't a good fit I'll just cut them off and solder the wires together. My original wheel is the 1300wh model which by definition is a 84-volt wheel. @Jason McNeil is my supplier for all things EUC. Link to comment Share on other sites More sharing options...
Hunka Hunka Burning Love Posted March 16, 2018 Share Posted March 16, 2018 I thought I recall seeing a Gotway worker pry the split end apart with a screwdriver so they could insert the male connector. They probably got the tolerances just a little too much on the tight side unless there is a special connector tool to squeeze them together. Maybe a simple crimped splice would be better than soldering these high current wires. http://www.meyette.us/crimping.htm Link to comment Share on other sites More sharing options...
Scott Henley Posted March 16, 2018 Share Posted March 16, 2018 38 minutes ago, Marty Backe said: Thanks. If I get a consensus that these aren't a good fit I'll just cut them off and solder the wires together. My original wheel is the 1300wh model which by definition is a 84-volt wheel. @Jason McNeil is my supplier for all things EUC. Yeah. I figured . If I only had 84v batteries I could do the same thing to my ACM and then I’d definitely keep it . ? Link to comment Share on other sites More sharing options...
Scott Henley Posted March 16, 2018 Share Posted March 16, 2018 26 minutes ago, Hunka Hunka Burning Love said: I thought I recall seeing a Gotway worker pry the split end apart with a screwdriver so they could insert the male connector. They probably got the tolerances just a little too much on the tight side unless there is a special connector tool to squeeze them together. Maybe a simple crimped splice would be better than soldering these high current wires. http://www.meyette.us/crimping.htm I like this idea . First I’ve seen it but definitely an easy and secure way to connect the motor wires . But you’d need to cut that splice out if you ever needed to remove the motor ...so if splice in some extra wire while youre at it . Link to comment Share on other sites More sharing options...
Rehab1 Posted March 16, 2018 Share Posted March 16, 2018 3 hours ago, Marty Backe said: @Rehab1, do you recall how your bullet connectors came together? Sorry for my late reply. I was hugging a crying divorcee. Are you replacing both the male and female? If not you should. I have experimented with 4 different bullet connector brands and none are compatible with each other. @Scott Henley I see you purchased the 5.5 mm Castles. Great bullet connector! Link to comment Share on other sites More sharing options...
Marty Backe Posted March 17, 2018 Author Share Posted March 17, 2018 58 minutes ago, Rehab1 said: Sorry for my late reply. I was hugging a crying divorcee. Are you replacing both the male and female? If not you should. I have experimented with 4 different bullet connector brands and none are compatible with each other. @Scott Henley I see you purchased the 5.5 mm Castles. Great bullet connector! It's not that I'm replacing the connectors, I'm trying to determine whether these are good. The fit seems very tight and you can see how the male end isn't even fully seated. If this is how they all look from Gotway then I won't do anything. If the consensus is that something looks wrong, I will solder the wires together. I thought you might have some insight based on your use of bullet connectors. Link to comment Share on other sites More sharing options...
Rehab1 Posted March 17, 2018 Share Posted March 17, 2018 8 minutes ago, Marty Backe said: It's not that I'm replacing the connectors, I'm trying to determine whether these are good. The fit seems very tight and you can see how the male end isn't even fully seated. If this is how they all look from Gotway then I won't do anything. If the consensus is that something looks wrong, I will solder the wires together. I thought you might have some insight based on your use of bullet connectors. The connectors should marry together with a slight push. At least with a tight fit you won’t experience any electrical arcing. On the opposite end of the spectrum here is a photo from Linnea to Jason last year when we were all replacing ACM boards. GW’s solution for loose bullet connectors was to physically spread the male blades for better contact. Link to comment Share on other sites More sharing options...
FULspeed Posted March 21, 2018 Share Posted March 21, 2018 Dear @Marty Backe, I don't know if you can give me this information, but would be possible to estimate the cost of this improvement? (new motor plus motherboard?) I was considering whether to do it on my ACM or if it is more convenient to replace it completely... Thanks Link to comment Share on other sites More sharing options...
US69 Posted March 21, 2018 Share Posted March 21, 2018 26 minutes ago, FULspeed said: Dear @Marty Backe, I don't know if you can give me this information, but would be possible to estimate the cost of this improvement? (new motor plus motherboard?) I was considering whether to do it on my ACM or if it is more convenient to replace it completely... I would say the big difference is that Marty is in the USA, with very, very fair Prices from ewheels.com.....while you are in France, the EUC highes cost Country. So i dont know if the costs from Marty would help you a lot.... Link to comment Share on other sites More sharing options...
Marty Backe Posted March 21, 2018 Author Share Posted March 21, 2018 4 hours ago, FULspeed said: Dear @Marty Backe, I don't know if you can give me this information, but would be possible to estimate the cost of this improvement? (new motor plus motherboard?) I was considering whether to do it on my ACM or if it is more convenient to replace it completely... Thanks Expect to pay between $400 and $500. Also, you will have to buy new pedal hangers since the thick axle of the ACM2 motor won't fit in the original ACM hangers. Link to comment Share on other sites More sharing options...
Rehab1 Posted March 21, 2018 Share Posted March 21, 2018 7 hours ago, Marty Backe said: Expect to pay between $400 and $500. Also, you will have to buy new pedal hangers since the thick axle of the ACM2 motor won't fit in the original ACM hangers. Marty, curious if you have determined how much thicker the new axle is? Also is the bore diameter any larger to accept thicker motor wires other than 14awg? Link to comment Share on other sites More sharing options...
Smoother Posted March 21, 2018 Share Posted March 21, 2018 On 3/16/2018 at 11:51 PM, Rehab1 said: Sorry for my late reply. I was hugging a crying divorcee. Am I the only one to pick up on this? HUGGING A CRYING DIVORCEE!!!!! Don't tell me, it was your wife after you told her you bought a Tesla, right? Link to comment Share on other sites More sharing options...
Rehab1 Posted March 22, 2018 Share Posted March 22, 2018 1 hour ago, Smoother said: Am I the only one to pick up on this? HUGGING A CRYING DIVORCEE!!!!! Don't tell me, it was your wife after you told her you bought a Tesla, right? Late on this one. Spoken like a skilled derailer. it was a sincere hug. My neighbor had to sell her home and broke down. Link to comment Share on other sites More sharing options...
Smoother Posted March 22, 2018 Share Posted March 22, 2018 3 minutes ago, Rehab1 said: My neighbor had to sell her home and broke down That is sad. It's terrible when your world falls apart. Good luck to her. Link to comment Share on other sites More sharing options...
Marty Backe Posted March 22, 2018 Author Share Posted March 22, 2018 7 hours ago, Rehab1 said: Marty, curious if you have determined how much thicker the new axle is? Also is the bore diameter any larger to accept thicker motor wires other than 14awg? The axle is 2mm thicker, and the bore diameter is correspondingly larger. I measured the motor wires with a micrometer and they are also noticeably thicker. So very nice improvements all away around. Link to comment Share on other sites More sharing options...
Marty Backe Posted March 23, 2018 Author Share Posted March 23, 2018 On 3/21/2018 at 10:59 PM, Marty Backe said: The axle is 2mm thicker, and the bore diameter is correspondingly larger. I measured the motor wires with a micrometer and they are also noticeably thicker. So very nice improvements all away around. Correction @Rehab1. Turns out the axle is 3mm thicker. It takes a 24-mm wrench. So it's the same size as the Monster axle. Very nice upgrade. Link to comment Share on other sites More sharing options...
Rehab1 Posted March 23, 2018 Share Posted March 23, 2018 4 minutes ago, Marty Backe said: Correction @Rehab1. Turns out the axle is 3mm thicker. It takes a 24-mm wrench. So it's the same size as the Monster axle. Very nice upgrade. That is a nice upgrade! Is there any depiction on the wires indicating the awg? My silicone 14awg wires could have passed for 12awg because the insulation was thicker. Keep the positive upgrades coming Gotway! Link to comment Share on other sites More sharing options...
Marty Backe Posted March 23, 2018 Author Share Posted March 23, 2018 37 minutes ago, Rehab1 said: That is a nice upgrade! Is there any depiction on the wires indicating the awg? My silicone 14awg wires could have passed for 12awg because the insulation was thicker. Keep the positive upgrades coming Gotway! The motor wires have that heat sheathing over each wire so I can't see the markings. But they are thicker yet the insulation type seems the same as the old ACM wire. So I believe it's thicker gauge. Link to comment Share on other sites More sharing options...
Rehab1 Posted March 23, 2018 Share Posted March 23, 2018 2 hours ago, Marty Backe said: The motor wires have that heat sheathing over each wire so I can't see the markings. But they are thicker yet the insulation type seems the same as the old ACM wire. So I believe it's thicker gauge. Hopefully GW took advantage of the shaft being thicker and bore diameter larger. Enjoy! Link to comment Share on other sites More sharing options...
Marty Backe Posted March 24, 2018 Author Share Posted March 24, 2018 19 hours ago, Rehab1 said: Hopefully GW took advantage of the shaft being thicker and bore diameter larger. Enjoy! Yes, as mentioned above the bore hole is larger and the wires are a heavier gauge. Positive improvements all away around. Link to comment Share on other sites More sharing options...
Rehab1 Posted March 24, 2018 Share Posted March 24, 2018 31 minutes ago, Marty Backe said: Yes, as mentioned above the bore hole is larger and the wires are a heavier gauge. Positive improvements all away around. Bragger! I can already hear your comment: “I have a bigger shaft and bore diameter than you!” Link to comment Share on other sites More sharing options...
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