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Main Forum - Helicopter Talk R/C Helicopters and the people who fly them. VENDOR TOPICS DO NOT GO HERE. Full Scale Heli threads go in OT please |
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04-18-2017, 07:36 PM | #21 (permalink) | |
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Note that I've seen some HT-95's on ebay that have been modified with other dies and sometimes they are missing the pin loading mechanism so compare with the pics I posted. Last edited by Atomic Skull; 04-18-2017 at 11:24 PM.. |
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04-18-2017, 07:44 PM | #22 (permalink) | |
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There are some other tools he missed, the HT-102 (male pin version of the HT-95) and the HT-73 (like HT-95 but for 18-20AWG) as well as a non ratchet crimper for 22-26AWG called the HT-114 |
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04-18-2017, 08:00 PM | #23 (permalink) | |
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The dies looked right and the loader was there so hopefully it's the right stuff. Should be here Friday. My logic for the HT-0095 was that it is still supported, so, replacement parts should be available. God knows what they would cost though.
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04-19-2017, 08:01 AM | #24 (permalink) | |
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You have a point there. For kicks, I looked around recently for a spare set of dies for my 208a's. I couldn't find them for any cheaper than $200 LOL!! MB
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04-19-2017, 08:05 AM | #25 (permalink) | |
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Thanks Atomic, now you have me pondering whether I can live without a HT-73 and HT-102, now that I know they exist. LOL!! MB
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Nano CPX x 3, mCPX-BL x 3,130X, 180CFX, Lynx 450X-L, T-Rex 250 DFC, T-Rex 450L, T-Rex 500, KDS Chase 360, SAB G380, G500 Spt, BT650, BT700-T, BT700 Spt, XLP520 "More the Knowledge Lesser the Ego, Lesser the Knowledge More the Ego" Albert Einstein |
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04-19-2017, 10:08 AM | #26 (permalink) |
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OK, I have got to stop. I just ordered a set of HT-208a crimpers.
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04-20-2017, 02:34 AM | #28 (permalink) |
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I think I may have located what terminal JR uses on their servo leads. I've also seen these on Blue Arrow servos:
http://katalog.we-online.de/en/em/WT...CT_661X0113722 Searching for WT-WTB came up with a different connector family but it's a lead. It is annoying how RC companies guard this information like nuclear launch codes. EDIT: They are made by Wurth: http://www.tracepartsonline.net/(S(n...&SendComment=0 Last edited by Atomic Skull; 04-20-2017 at 02:51 AM.. |
04-20-2017, 03:12 AM | #29 (permalink) | |
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Atomic, Thanks for the info. Do you prefer these pins over the du pont style pins? MB
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Nano CPX x 3, mCPX-BL x 3,130X, 180CFX, Lynx 450X-L, T-Rex 250 DFC, T-Rex 450L, T-Rex 500, KDS Chase 360, SAB G380, G500 Spt, BT650, BT700-T, BT700 Spt, XLP520 "More the Knowledge Lesser the Ego, Lesser the Knowledge More the Ego" Albert Einstein |
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04-20-2017, 11:01 AM | #30 (permalink) |
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Your right, I just picked up a set of HT 114 crimpers.
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04-20-2017, 04:55 PM | #31 (permalink) |
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Never used them before, I imagine they must have some special crimp tool that costs four figures (as all of these terminals do). I already have an HT-0095 and HT-0073 and DuPont type terminals are cheap and readily available.
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04-20-2017, 06:16 PM | #32 (permalink) | |
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Out of interest, out of all the DuPont type pins that are out there, which ones have you found to be the best? I've bought a few different ones now, and have often found that although the pins look similar, the housings often have the little locating lugs in different locations, either further away, or closer to the end of the housing. Means I end up buying housings and pins when I order, in case the pins I buy don't match the housings I have laying around, and vice versa. MB
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Nano CPX x 3, mCPX-BL x 3,130X, 180CFX, Lynx 450X-L, T-Rex 250 DFC, T-Rex 450L, T-Rex 500, KDS Chase 360, SAB G380, G500 Spt, BT650, BT700-T, BT700 Spt, XLP520 "More the Knowledge Lesser the Ego, Lesser the Knowledge More the Ego" Albert Einstein |
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04-20-2017, 06:39 PM | #33 (permalink) | |
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The cheap ones I got from Microcontrollershop on Ebay turned out to not be so bad once I figured out that they were intended for 28-32AWG wire and for that they work very well. FCI Amphenol actually makes three "sizes" of Mini-PV terminals for 18-20AWG 22-26AWG and 26-32AWG though the "middle size" seem to work fine with everything. I think the "large size" might work a bit better with 20AWG wire though. The genuine ones also come in different retention spring force ratings from "soft" to "ultra" All of the Mini-PV housings I've seen have about a half mm of "lenghtwise slop" between the terminal and the latch that keeps it inside the housing and this seems to be by design. |
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04-20-2017, 07:04 PM | #34 (permalink) |
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Received my HT-73 today, this tool is for crimping female DuPont terminals onto 18-20AWG wire. The interesting thing is that the conductor crimp is a more traditional double D (the insulation crimp half of the die is still cylindrical however)
EDIT: after inspecting the HT-95 the I can see that conductor side of the crimp is actually a double D that swages the crimp barrel tightly around the conductor. If you look closely at the conductor crimp under a loupe you will see that it has a folded under seam running up the center of the tube. With the HT-73 the crimp is larger for the bigger wire so the double D is more apparent. Front of the tool, note the cylindrical die. I have no idea what that knob does and I'm not going to experiment with it. It could be just a fastener to hold the die in place (the HT-95 has a similar looking knob on the pin loading mechanism that is just a fastener) Back of the tool, note the double D die on this side. You can also see the back of the pin loading device. Unlike the HT-95 which has a spring loaded tracked mechanism with a pair of pins for holding the terminals that is pressed forward while loading this tool has a fixed device with a square hole that the terminal box is inserted into and this makes loading them a bit trickier. It may be that there is some tool for loading the terminals, I just grab one of the insulation wings with needle nose pliers and stick it in (it needs a slight bit of force). You could probably make some 3D printed doodad for this. Hansen 20AWG sillicone servo wire on the left and generic 20AWG Turnigy brand sillicone wire on the right. The Hansen stuff has a slightly larger conductor and a slightly smaller diameter jacket. The sillicone also seems a little denser. I tried yanking out the crimps with pliers and was unable to get it to budge. I had to step on the wire and pull with both hands and the wire broke first leaving the crimped strands inside still inside the terminal. Last edited by Atomic Skull; 04-21-2017 at 02:25 AM.. |
04-20-2017, 07:09 PM | #35 (permalink) |
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My HT-95 and HT-208a crimpers arrived today. OMG they make some nice crimps. There is no comparison to the Hansen crimpers. The difference is in the repeatability.
The HT-208a looks almost new and came with the whole kit including the manual, tools, oil, and an extra set of dies. The HT-95 is well used from NASA but seems to work well. Are these supposed to ratchet? Mine do not. Looks like Matts' do not either since he has string around the handles.
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04-20-2017, 07:25 PM | #36 (permalink) | |
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Matt removed the ratchet from his tool because it has no release and if you put the terminal in wrong and partly close it you can't get it out without fully closing the tool which depending on how the pin is stuck in the jaw can damage it. I guess the NASA guys did the same thing. It shouldn't matter just make sure you close the jaw all the way. I like the ratchet so I'm just careful when closing the tool, the terminal can wiggle a bit on the holding pin until the wings touch the crimp die. FYI if for some reason that pin gets damaged it's just a regular 0.1 header pin held in with a setscrew. The manual details how to replace it. |
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04-20-2017, 07:38 PM | #37 (permalink) | |
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That makes sense about the ratchet. Thanks for the info. I'm hoping to be able to do the male pins with the HT-114 when they arrive. Does that seem feasible?
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04-21-2017, 12:50 AM | #38 (permalink) |
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I had no idea NASA sold stuff via ebay, or was it some third party clearing house? The fact that you have a set of crimpers that was likely used for spaceflight projects is seriously awesome though.
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04-21-2017, 02:22 AM | #39 (permalink) |
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I'm sure it came from a government surplus auction. I got buddies that work for NASA. They do a lot more than send stuff to space.
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04-21-2017, 02:30 AM | #40 (permalink) | |
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Changed the title of the thread because the subject has drifted to tools and there's a lot of good information here so I don't want to start a new one. |
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