Stefan, your video editing skills are getting as well polished as your machining skills....and thats saying alot. .If they had one, you'd deserve a You Tube "EMMY". All of us can only hope one day to approach your skills and expertise.
Great video. These will be the most precise CX impellers ever. The originals were sand cast and surprisingly rough casting for Honda. The small metal washer that goes behind the impeller is very important. The impellers and washers were all iron which is odd for the washer at least. I replaced my washers with steel. I celebrated owning my CX500 for 40 years on January 21st this year. It has over 551,000 kms on it now.
Thanks Stefan. This reminds me of the work we used to do with students in the F1 in Schools programme. We used a Denford bench top router and long 6mm ball nose bits but we were only cutting balsa wood. Great fun though.
As someone who suffers from ocd, I very much appreciate your love of precision. Great video!!! Also gotta love the little whistle check to make sure it's recording haha.
Great stuff Stefan, a trip down memory lane for me! I used to program 17" impellers with main and splitter vanes out of Inconel 718 full 5 axis......... Such fun and mesmerising to watch on a 4 spindle Liechti machine making 4 at once! Also multi stage blisks on the same kit. To be doing this in a home shop environment is fantastic, well done! Cheers, Jon
The sharp edges on the blade tips are actually good because they prevent tip losses. As long as you’re doing CNC, tapering the blade tips at the circumference would reduce turbulence in the coolant, reduce power loss, and improve flow.
When it comes to this level of production, you dont really have to worry about cavitation, you consider it, but performance is the factor... I have been in love with machines for over a decade now, and finally bought enough machines to equip a large shop... For the pumps, piston ones mind you, as i dont have cnc, but for simple gear and piston pumps i make, i make a sleeved bore, and capped floor and roof of the internal mech... If the cavitation does enough damage over years, or if i need the pump to deliver savage force, i dont care... I use it for what i need it to do, and after a month or two, just check if the ``sleeves`` and running gear needs replacement... A water pump on a car or a bike like this wont see that much cavitation for it to wear it out, much sooner will the bearings fail and cause the impeller to mash into the internal walls and get mangled, therefore needing a replacement... Internal walls are steel, so alu impeller wont damage them too much... That said, reducing turbulence in the coolant and all the stuff the robert mentioned will be harder than just tapering the blade tips... Yeah, that will do the job in that section, but look at jaffros videos on internal passage polishing... He did it for the oil passages, but internal walls and connections that allow a system to circulate the coolant or oil in most machines or engines is a series of compromises and surfaces that are awful, as they go through blocks of wild internal geometry and structure, so unless the engine block is a custom wax casting that has naturally polished bores and passages all the way through it, and the hoses that connect the system are custom fit and the plugs that fit them are made to allow for no pressure differences through diameter change or surface imperfection, worrying about reducing coolant turbulence, loss of power thereby and improved flow are not fixed by just making a perfect geometry, polished surfaces turbine...
Sharp impellers are also more efficient. From the engineer at work told me earlier, rounding the edge probably made it lose 5-10% of it's flow at a given speed. The engineer I am referring to spends his spare time designing custom turbos for sleds.
@@gospelman7222 Whatever the designation they were tough. LOL. Extra bonus was to tuck your knees in behind the cylinder heads for a nice warm Fall ride.
Nicely done, sir. I'm glad you showed some of the changes to the drawn model you worked out with the customer to make the part easier to manufacture. I think people forget that you can draw things that aren't easily made. Hope all is well there! - Tom Z
Endlich mal eine ordentliche Zeichnung eines Teiles! Da kann man alles genau erkennen. In vielen Videos anderer sieht man oft nur ziemlich schräge Skizzen. Die Problematik hast Du gut beschrieben! - Tja, die auslaufenden Winkel sind mit Fräsern nicht exakt herstellbar! Da kann man sich eben nur nähern. Auch die Spannvorrichtung ist gut erklärt. Ich kenne mich mit CNC-Maschinen nicht wirklich aus. Ich finde diese Technologie wunderbar, weil damit Dinge möglich sind, die man mit konventionellen Maschinen entweder gar nicht oder nur mit erheblichem Aufwand zu stande bringen kann. Trotzdem liebe ich es, an konventionellen Maschinen zu arbeiten. Das ist noch richtiges Handwerk! Ich liebe die Gerüche, die Geräusche und den Anblick wenn die Späne sauber gleiten! Wäre ich sehr reich, dann würde ich mir igrendwo einen Bauernhof kaufen und mir dort eine gut ausgestattete Werkstatt einrichten. Die wäre auch für die Nachbarn und vor allem für die Jugend offen! Aus dieser Werkstatt müßte man mich abends rausprügeln, denn sonst würde ich im Schlafsack vor den Maschinen schlafen! :))
Would love to see a co-lab with you and your brother from another mother the infamous ToT🤣🤣..... You and Tony have taught me a huge amount of knowledge as a new hobby machinist
The indicator is dirty. I have the exact same one, behaved in the exact same way. Had it cleaned by a watchmaker friend and it works clean as can be now.
Nice video! Was there any consideration for using that offset 2mm through hole as an indexing / counter-rotation feature on the fixture plate, or is that unnecessary or a bad idea?
Kinda yes: I was thinking about drilling the 2mm hole on the manual mill (one simple setup) and add a pin to the fixture. But the single M6 screw can put so much axial force into the part, that rotation is very, very much unlikely.
Great video to watch, i like the way you explained each and every step of the process here in detail. and also its nice to have someone explaining all this in metric system😅. Will surely watch other videos and wait for new ones, great work👌
It was interesting to see the design work to backwards engineer a part. I imagine these are going into ultralight aircraft as I can't imagine a CX 500~650 owner paying the required amount for such a part except in very rare circumstances
Yes but why would you use such an antiquated, used engine in need of refurbishment and with a needless liquid cooling for that when you can simply use a BMW flat twin? After all, you don't need the gear box, which is by far the worst part of that particular power train.
@@Cancun771 Sorry for the long reply but I have quite a bit of experience with the CX motor even if I'm not a fan of it. (the original CX was 'The Plastic Pig' in 1978) It's actually a pretty simple question, power to weight and less torque reaction plus lower vibration. It's also TINY when sitting on bench. (rough guess about 18"x18"x24"?) The BMW boxer engine cannot compete and maintain reliability plus would be at least 600cc but more likely 750, 900 or 1000. (my second dealership job was at Suzuki-BMW dealers for a few years, really liked the K series 'Flying Brix') The CX had at least 5 different cam chain tensioner modification and upgrades I know of, the weakest part was the water-pump seal but even that was eventually fixed. I read the CX is 'big' in the jet boat world as it uses the water it's floating in for coolant? Honda spent a lot of time making the engine reliable for the US market where motorcycles are just 'disposable toys' Anyway, I worked at a Suzuki-Yamaha dealers when the CX 500 turbo was a current model. Took out Suzuki RG500 four cylinder two stroke for a 'test ride', then a Yamaha RD500 four on the same 'loop'. I had previously worked at Honda dealership, they didn't want to work on CX500 Turbo so I did it at the Suzuki dealers (out of guaranty so Honda wouldn't pay for work) Turbo waste-gate was stuck so it wouldn't make any boost. Very simple to remove a 'C' clip and disconnect link, free up seized valve so it closed . According to Honda UK, with link disconnected, it would boost to 52PSI which made it MUCH faster accelerating than either of the two-strokes, 25 to 110mph without changing gear! The owner wanted it stock though so I put it all back together which killed the performance (Owner was Royal Air Force Air Frame Fitter, everything 'by the book)
These parts seem to have been ordered by a German CX Motorbike owners group. Original impellers are unobtainable. They are being made to individual order, none for stock.
@@1crazypj They absolutely do use BMW flat twins, not just in ultralight aircraft but also in portable pumps for fire brigades. In that application, the whole device (Rosenbauer) weighs in at just 167 kg, one of the lightest such pumps worldwide. Besides the gearbox, six more kilos can be saved by replacing the alternator (Silent Hektik) and of course you have a much easier time acquiring these engines since two of them are still in production if memory serves. Not that I would want to _promote_ those flat twins, especially not over _any_ Honda engine. I am not even a big fan of them. I just vaguely remembered seeing one of them powering a UL at some point.
@@Cancun771 LOL, we are kinda taking over Stefan's post. Pretty much any engine you can think of has been used by ultralight and experimental aircraft people, personally I think they are crazy. Way back when, we did quite a good trade in MZ250 engines, when cut up and a prop attached they were rated at 30bhp and were very light as it was just crankcase, crank, cylinder and carb mounted upside down. (I only ever saw pictures, not into flying around in/on something built of bamboo, string and plastic bags ;o) ) I think Stefan may have to find out where these things are going, I'm intrigued by it.
Imagine designing three different coolant pumps for what is essentially the same engine. I used to own a GL 650 Silver Wing, which in contrast to the 500cc models was exceedingly rare, didn't sell at all well. Turns out among the other parts that Honda redesigned was the drive shaft. Which meant that once the drive shaft on my old goat snapped, I could not simply get a replacement from some breaker's dismantled CX 500 while the new part was of course prohibitively expensive. Also, the shaft had of course snapped in the first place because the 650 shaft had a design flaw, making it even more difficult to get a used part. And of course it meant that once you actually did manage to get a used 650 shaft, you kept living on borrowed time. And that wasn't even the worst thing about that particular bag of nuts that I never should have bought.
I enjoyed this video. The explanation/narrative meshed nicely with the model and part development. And your friends EDM work was interesting. I'd never heard of it before.
How long did it take the mill to machine each part? Do you have to supervise the mill closely or can you do the lathe work on the next part whilst the mill is cutting?
did you consider using the pencil tool path for the inner corners? In woodworking I often use that with bullnose surface paths because it helps ensure that you get nice clean inner corners. It looks like you got a killer surface finish anyway, so I guess it wouldn't have helped.
It is incredibly kind of you to share so much of your work with such considered commentary for us to learn from and/or be entertained by. Thank you, Stefan! I love the whistle to highlight re-takes - sorry you missed some (if you mind - it did not bother me at all!), did you use the wrong frequency? :0)
Hallo Stefan, perfekte Arbeit wie immer und großartig präsentiert. Eine Frage zum Verständnis hätte ich: Warum hast du so viel Zeit für die manuelle Dreherei aufgewendet und nicht alles in zwei Aufspannungen von der CNC-Fräse machen lassen?
Almost as good as a fluxcapacitor. Actually, since my fluxcapacitor idea could move even neutral matter, it could be used as a water pump. I've even thought about using it for a water based heat pump... Sorry for the strange tangent. I really enjoy watching your work. Something to aspire to.
Hi Stefan, great video, really enjoyed it and the knowledge you imparted. Can you tell me if you put splines in the centre bore and also what is the price of the 'standard' CX500 impeller? Thanks, John
Nice video. Just wondering why you didn't cut the front taper on the lathe ? It would also be very interesting to know the total cycle time in one of these parts once you had the process dialed in (lathe and milling).
Danke für die klasse Erklärung und Aufnahmen. 👍Eine Frage hätte ich. Warum nicht schon die Kegelform auf der Drehbank vorbereiten, dann hätte doch weniger Material gefräst werden. Bitte habt Rücksicht, ich gebe ja zu keine Ahnung zu haben.😁
Bei der Drehbank muss ich dabei stehen, an der cnc läuft das ganze Mannlos - Einfache Entscheidung für mich - Tatsächlich hab ichs auch ausprobiert, aber die Kegelform vorarbeiten hat nicht viel an der Bearbeitungszeit geändert.
I don't know, honestly, I know jack about motorcycles, oldtimers and the replacement part situation. All I do, is to quote a part as per drawing and machine them if i get the project :)
Stefan, I thought you were using a different CAD/CAM package? I see your using fusion now. Not that I am judging, I am also using fusion quite a bit. How do you like it? Care to discuss?
Hallo Stefan Das ist auch für mich als nicht-CNCler ein sehr interessantes Video gewesen. Interessant geschnitten, gut erklärt, insgesamt sehr unterhaltend und informativ. Und natürlich sehen die Teile super aus! 👍 Warum werden die Keilnuten eigentlich nicht geräumt?
Danke Larry - Ich weiß ja wie langweilig cnc videos sein können. Keiner will die Maschine 10 Minuten im Kreis fahren sehen 🤣 Gegen Räumen haben wir uns wegen der teueren oder aufwendig zu schleifenden Nadel entschieden. Am Ende war drahtschneiden am wirtschaftlichsten.
Hi Stefan, another fantastic video full of information to help all of us on our journeys. Quick question if I may, would you not benefit from better chip evacuation? There’s so many chips on the surface of the stock, your bound to have some me chip recutting causing poor surface finish on your parts. I understand you can’t use flood coolant on your router, but would you be able to use something like a FogBuster system?
Those look like some very nice impellers. Do you supply this to Honda or do they have their own? Also I am so disappointed with BMW, I had a 5 series wagon, the water pump impeller exploded. It was made of plastic. Can you imagine a plastic water pump impeller?
To be honest: By doing it a lot, and watching others. I learned a lot by watching Robin Renzetti doing lathe work, he is to me a master of efficient manual lathe work.
Sorry I'm late to this party. I watched the spline-cutting video. Why was it necessary to have such an accurate diameter center bore? (I am not a machinist, merely an interested amateur.)
Did you not turn the outside of the „cone“ on the lathe to avoid deflection when cnc machining? Why not use a pocket hole in place where the trough hole will go later to index the workpiece on the fixture?
Really enjoyed the model animation with the real footage running at the same time, great stuff as always
I agree
That little marker and compressed air trick is awesome, I've never see that before, definitely giving that a try. 👍👍
That compressed air and Sharpie trick is fantastic!
Stefan, your video editing skills are getting as well polished as your machining skills....and thats saying alot. .If they had one, you'd deserve a You Tube "EMMY". All of us can only hope one day to approach your skills and expertise.
Great video. These will be the most precise CX impellers ever. The originals were sand cast and surprisingly rough casting for Honda. The small metal washer that goes behind the impeller is very important. The impellers and washers were all iron which is odd for the washer at least. I replaced my washers with steel. I celebrated owning my CX500 for 40 years on January 21st this year. It has over 551,000 kms on it now.
Your videos are very well edited, they flow well and I'm never confused why a part was added.
Thanks Stefan. This reminds me of the work we used to do with students in the F1 in Schools programme. We used a Denford bench top router and long 6mm ball nose bits but we were only cutting balsa wood. Great fun though.
That Old Tony taught you well Stefan !!! Incredible detail.
i love there is no squealing from machine noises in your vids
I try not to blow out my viewers ears ;-)
Thanks for the insight into your approach to making these parts. The inset view of the machining while you show the simulation is a nice touch
The felt marker and compressed air was a great tip!
As someone who suffers from ocd, I very much appreciate your love of precision. Great video!!! Also gotta love the little whistle check to make sure it's recording haha.
Whoops missed to edit it out - I use them to give me editing queues. They are easy to see in the audio track during editing.
Ah, I couldn't figure out what the whistling was about, thought it was a Joe Pieczynski callout 😆
Very nice work and also nice part to, see you soon the 2e of 2022 👍👍
Great stuff Stefan, a trip down memory lane for me! I used to program 17" impellers with main and splitter vanes out of Inconel 718 full 5 axis......... Such fun and mesmerising to watch on a 4 spindle Liechti machine making 4 at once! Also multi stage blisks on the same kit. To be doing this in a home shop environment is fantastic, well done! Cheers, Jon
very good job stefan..thanks for your time
Thanks for the vid! I'm not much on the CNC stuff, but love to watch the lathe work!
The sharp edges on the blade tips are actually good because they prevent tip losses. As long as you’re doing CNC, tapering the blade tips at the circumference would reduce turbulence in the coolant, reduce power loss, and improve flow.
Probably cavitation as well, right?
When it comes to this level of production, you dont really have to worry about cavitation, you consider it, but performance is the factor... I have been in love with machines for over a decade now, and finally bought enough machines to equip a large shop... For the pumps, piston ones mind you, as i dont have cnc, but for simple gear and piston pumps i make, i make a sleeved bore, and capped floor and roof of the internal mech... If the cavitation does enough damage over years, or if i need the pump to deliver savage force, i dont care... I use it for what i need it to do, and after a month or two, just check if the ``sleeves`` and running gear needs replacement... A water pump on a car or a bike like this wont see that much cavitation for it to wear it out, much sooner will the bearings fail and cause the impeller to mash into the internal walls and get mangled, therefore needing a replacement... Internal walls are steel, so alu impeller wont damage them too much... That said, reducing turbulence in the coolant and all the stuff the robert mentioned will be harder than just tapering the blade tips... Yeah, that will do the job in that section, but look at jaffros videos on internal passage polishing... He did it for the oil passages, but internal walls and connections that allow a system to circulate the coolant or oil in most machines or engines is a series of compromises and surfaces that are awful, as they go through blocks of wild internal geometry and structure, so unless the engine block is a custom wax casting that has naturally polished bores and passages all the way through it, and the hoses that connect the system are custom fit and the plugs that fit them are made to allow for no pressure differences through diameter change or surface imperfection, worrying about reducing coolant turbulence, loss of power thereby and improved flow are not fixed by just making a perfect geometry, polished surfaces turbine...
Sharp impellers are also more efficient. From the engineer at work told me earlier, rounding the edge probably made it lose 5-10% of it's flow at a given speed. The engineer I am referring to spends his spare time designing custom turbos for sleds.
Extremely well presented and downright mesmerizing. And such a beautiful part!
I am a simple man, I see a Stefan Gottenswinter video -- I smash the like button.
Awesome - I had a CX500. 9,750 RPM redline with pushrods.... LOL. Water pump shaft seals were an issue. Loved that bike. Great video.
I seem to remember back in the day that they were known as "Plastic Maggots". Dunno why.
@@gospelman7222 Whatever the designation they were tough. LOL. Extra bonus was to tuck your knees in behind the cylinder heads for a nice warm Fall ride.
Absolutely beautiful Stefan I love it! GB ✌️💖&💡 from 🇺🇸
Thanks Stephan, another great video, hope your doing well! Cheers, Doug
Lang lebe die Güllepume! Schön, daß auch du dich darum kümmerst👌
Not sure what to say Stefan……………..mind blowing really and takes it to a whole new level!!
Nicely done, sir. I'm glad you showed some of the changes to the drawn model you worked out with the customer to make the part easier to manufacture. I think people forget that you can draw things that aren't easily made. Hope all is well there! - Tom Z
Beautiful Work Stephan 10/10
It was nice watching the manufacturing of these impellers Stefan👍
Thanks for sharing this with all of us, and thanks to your customer for letting you share this!
Very nice product. Enjoyed the video and will be waiting for the next one.
Take Care and Stay Safe.
Bob
The old Güllepumpen can now live on for another 50 years! Liebe Grüße aus dem kalten, hessischen Vogelsberg!
Endlich mal eine ordentliche Zeichnung eines Teiles! Da kann man alles genau erkennen. In vielen Videos anderer sieht man oft nur ziemlich schräge Skizzen. Die Problematik hast Du gut beschrieben! - Tja, die auslaufenden Winkel sind mit Fräsern nicht exakt herstellbar! Da kann man sich eben nur nähern. Auch die Spannvorrichtung ist gut erklärt. Ich kenne mich mit CNC-Maschinen nicht wirklich aus. Ich finde diese Technologie wunderbar, weil damit Dinge möglich sind, die man mit konventionellen Maschinen entweder gar nicht oder nur mit erheblichem Aufwand zu stande bringen kann. Trotzdem liebe ich es, an konventionellen Maschinen zu arbeiten. Das ist noch richtiges Handwerk! Ich liebe die Gerüche, die Geräusche und den Anblick wenn die Späne sauber gleiten!
Wäre ich sehr reich, dann würde ich mir igrendwo einen Bauernhof kaufen und mir dort eine gut ausgestattete Werkstatt einrichten. Die wäre auch für die Nachbarn und vor allem für die Jugend offen! Aus dieser Werkstatt müßte man mich abends rausprügeln, denn sonst würde ich im Schlafsack vor den Maschinen schlafen! :))
Go brother!
Excellent work 👌
Thanks for leaving in the extra dialogue take with the whistling. Gives some behind the scenes look. These must be some pretty expensive parts.
That marker and compressed air trick is new to me. Thanks. Great trick.
THANK YOU STEFAN. REGARDS RICHARD.
Would love to see a co-lab with you and your brother from another mother the infamous ToT🤣🤣..... You and Tony have taught me a huge amount of knowledge as a new hobby machinist
Very cool, I always learn something from your vids. Do you have a link to that DCMT boring bar? Now I need one.
The indicator is dirty. I have the exact same one, behaved in the exact same way. Had it cleaned by a watchmaker friend and it works clean as can be now.
Nice video! Was there any consideration for using that offset 2mm through hole as an indexing / counter-rotation feature on the fixture plate, or is that unnecessary or a bad idea?
Kinda yes: I was thinking about drilling the 2mm hole on the manual mill (one simple setup) and add a pin to the fixture. But the single M6 screw can put so much axial force into the part, that rotation is very, very much unlikely.
It looked 3D printed before you bead blasted it. Very nicely done. Thanks, Stefan!
Nice one stephan thanks for sharing with us this great knowledge keep up the good work 👍🏾
Great video to watch, i like the way you explained each and every step of the process here in detail. and also its nice to have someone explaining all this in metric system😅. Will surely watch other videos and wait for new ones, great work👌
Wieder ein Top Video mit 1A Erklärungen 5*****
It was interesting to see the design work to backwards engineer a part.
I imagine these are going into ultralight aircraft as I can't imagine a CX 500~650 owner paying the required amount for such a part except in very rare circumstances
Yes but why would you use such an antiquated, used engine in need of refurbishment and with a needless liquid cooling for that when you can simply use a BMW flat twin? After all, you don't need the gear box, which is by far the worst part of that particular power train.
@@Cancun771 Sorry for the long reply but I have quite a bit of experience with the CX motor even if I'm not a fan of it. (the original CX was 'The Plastic Pig' in 1978)
It's actually a pretty simple question, power to weight and less torque reaction plus lower vibration. It's also TINY when sitting on bench. (rough guess about 18"x18"x24"?)
The BMW boxer engine cannot compete and maintain reliability plus would be at least 600cc but more likely 750, 900 or 1000. (my second dealership job was at Suzuki-BMW dealers for a few years, really liked the K series 'Flying Brix')
The CX had at least 5 different cam chain tensioner modification and upgrades I know of, the weakest part was the water-pump seal but even that was eventually fixed.
I read the CX is 'big' in the jet boat world as it uses the water it's floating in for coolant?
Honda spent a lot of time making the engine reliable for the US market where motorcycles are just 'disposable toys'
Anyway,
I worked at a Suzuki-Yamaha dealers when the CX 500 turbo was a current model. Took out Suzuki RG500 four cylinder two stroke for a 'test ride', then a Yamaha RD500 four on the same 'loop'.
I had previously worked at Honda dealership, they didn't want to work on CX500 Turbo so I did it at the Suzuki dealers (out of guaranty so Honda wouldn't pay for work)
Turbo waste-gate was stuck so it wouldn't make any boost.
Very simple to remove a 'C' clip and disconnect link, free up seized valve so it closed
. According to Honda UK, with link disconnected, it would boost to 52PSI which made it MUCH faster accelerating than either of the two-strokes, 25 to 110mph without changing gear! The owner wanted it stock though so I put it all back together which killed the performance (Owner was Royal Air Force Air Frame Fitter, everything 'by the book)
These parts seem to have been ordered by a German CX Motorbike owners group. Original impellers are unobtainable. They are being made to individual order, none for stock.
@@1crazypj They absolutely do use BMW flat twins, not just in ultralight aircraft but also in portable pumps for fire brigades. In that application, the whole device (Rosenbauer) weighs in at just 167 kg, one of the lightest such pumps worldwide. Besides the gearbox, six more kilos can be saved by replacing the alternator (Silent Hektik) and of course you have a much easier time acquiring these engines since two of them are still in production if memory serves.
Not that I would want to _promote_ those flat twins, especially not over _any_ Honda engine. I am not even a big fan of them. I just vaguely remembered seeing one of them powering a UL at some point.
@@Cancun771 LOL, we are kinda taking over Stefan's post.
Pretty much any engine you can think of has been used by ultralight and experimental aircraft people, personally I think they are crazy. Way back when, we did quite a good trade in MZ250 engines, when cut up and a prop attached they were rated at 30bhp and were very light as it was just crankcase, crank, cylinder and carb mounted upside down. (I only ever saw pictures, not into flying around in/on something built of bamboo, string and plastic bags ;o) )
I think Stefan may have to find out where these things are going, I'm intrigued by it.
This was great, and nice combo of manual and cnc machining, pretty complex parts too, at least in my eyes :) beautiful work as always stefan
Imagine designing three different coolant pumps for what is essentially the same engine. I used to own a GL 650 Silver Wing, which in contrast to the 500cc models was exceedingly rare, didn't sell at all well. Turns out among the other parts that Honda redesigned was the drive shaft. Which meant that once the drive shaft on my old goat snapped, I could not simply get a replacement from some breaker's dismantled CX 500 while the new part was of course prohibitively expensive. Also, the shaft had of course snapped in the first place because the 650 shaft had a design flaw, making it even more difficult to get a used part. And of course it meant that once you actually did manage to get a used 650 shaft, you kept living on borrowed time.
And that wasn't even the worst thing about that particular bag of nuts that I never should have bought.
Nice Video, Stefan…Well Done!
I enjoyed this video. The explanation/narrative meshed nicely with the model and part development.
And your friends EDM work was interesting. I'd never heard of it before.
Thank you as always for the expertise! Someone clearly loves their motorcycles if they can afford so much of your labour.
Beautifully done video, Thank you
Thats was a wheelie good mix on CAD and Machine.
Wow, that was great. Perfectly explained. Well done and thanks.
I'd like to try cnc just to see the resulting mushroom cloud.
Great video agai stefan , u ook dank u wel !
Grts from the Netherlands Johny geerts
Wow! Great CNC education!
Bravo! :)
How long did it take the mill to machine each part? Do you have to supervise the mill closely or can you do the lathe work on the next part whilst the mill is cutting?
I had always two on the machine, no supervision needed at all - Total machining time for two on the cnc was about 40 minutes.
did you consider using the pencil tool path for the inner corners? In woodworking I often use that with bullnose surface paths because it helps ensure that you get nice clean inner corners. It looks like you got a killer surface finish anyway, so I guess it wouldn't have helped.
It is incredibly kind of you to share so much of your work with such considered commentary for us to learn from and/or be entertained by. Thank you, Stefan!
I love the whistle to highlight re-takes - sorry you missed some (if you mind - it did not bother me at all!), did you use the wrong frequency? :0)
9:25 Was ist das für ein interessantes Reibahlen-Ausgleichsfutter? Sieht so aus, als könnte man das nachbauen :) Danke fürs Zeigen!
Das ist von Regofix - Ich hatte das noch nie zerlegt, keine Ahnung wie das innen Umgebaut ist :/
@@StefanGotteswinter Ah danke! Im Netz findet man jedenfalls nicht so viel zum Aufbau solcher Futter.
Very interesting video ... Thanks for Sharing,,, Stay Safe....
Hallo Stefan, perfekte Arbeit wie immer und großartig präsentiert.
Eine Frage zum Verständnis hätte ich: Warum hast du so viel Zeit für die manuelle Dreherei aufgewendet und nicht alles in zwei Aufspannungen von der CNC-Fräse machen lassen?
Great video, love seeing some Fusion content.
Almost as good as a fluxcapacitor. Actually, since my fluxcapacitor idea could move even neutral matter, it could be used as a water pump. I've even thought about using it for a water based heat pump... Sorry for the strange tangent.
I really enjoy watching your work. Something to aspire to.
Great work Stefan enjoyed thoroughly!
Good job. I did some modeling whole weekend but for 3d printing :)
Thanks !! Very interresting and clever !!
Where these parts just no longer available from Honda Motor Co.? Very interesting part to program and machine.
Thanks for showing.
Hi Stefan, great video, really enjoyed it and the knowledge you imparted. Can you tell me if you put splines in the centre bore and also what is the price of the 'standard' CX500 impeller? Thanks, John
What grade aluminum are you using and are the impellers anodized after machining ?
Really liked the presentation. For some reason everything just seemed to click for me on this presentation.
That is a LOT of impellers for an old Honda!
nice walk through dude
Mal wieder ein super video und sehr gute Arbeit 👌🏻
Great video. I have a request for a video; using, programming and describing all of the features on that digimatic on your surface stone.
Nice video. Just wondering why you didn't cut the front taper on the lathe ? It would also be very interesting to know the total cycle time in one of these parts once you had the process dialed in (lathe and milling).
I tried it, wasnt worth the reduction in cycle time. Cnc time is good time, it runs unattended.
Great job man.
Very nice Stefan.
Danke für die klasse Erklärung und Aufnahmen. 👍Eine Frage hätte ich. Warum nicht schon die Kegelform auf der Drehbank vorbereiten, dann hätte doch weniger Material gefräst werden. Bitte habt Rücksicht, ich gebe ja zu keine Ahnung zu haben.😁
Bei der Drehbank muss ich dabei stehen, an der cnc läuft das ganze Mannlos - Einfache Entscheidung für mich - Tatsächlich hab ichs auch ausprobiert, aber die Kegelform vorarbeiten hat nicht viel an der Bearbeitungszeit geändert.
@@StefanGotteswinter Danke für die Antwort. 👍
This video is so nice thaf I felt propelled to write a comment 😀
Hi, great video, very useful... I have one question though. Do you use MQL in this case?
Well, now i know where to get those parts for my cx-650e!
I have the shop manual for it, too, as well as *even older* interesting books ;)
It seems that these aren't all that expensive to buy? I just wondered how much it takes to make it worth the time & effort.
I don't know, honestly, I know jack about motorcycles, oldtimers and the replacement part situation.
All I do, is to quote a part as per drawing and machine them if i get the project :)
ive been waiting for this one. Great stuff
Stefan, I thought you were using a different CAD/CAM package? I see your using fusion now. Not that I am judging, I am also using fusion quite a bit. How do you like it? Care to discuss?
Hallo Stefan
Das ist auch für mich als nicht-CNCler ein sehr interessantes Video gewesen. Interessant geschnitten, gut erklärt, insgesamt sehr unterhaltend und informativ. Und natürlich sehen die Teile super aus! 👍
Warum werden die Keilnuten eigentlich nicht geräumt?
Danke Larry - Ich weiß ja wie langweilig cnc videos sein können. Keiner will die Maschine 10 Minuten im Kreis fahren sehen 🤣
Gegen Räumen haben wir uns wegen der teueren oder aufwendig zu schleifenden Nadel entschieden.
Am Ende war drahtschneiden am wirtschaftlichsten.
Nice to see you man as always
Excellent as always Stefan. Have you switched from Alibre back to Fusion 360?
I really enjoy your channel.
Hi Stefan, another fantastic video full of information to help all of us on our journeys. Quick question if I may, would you not benefit from better chip evacuation? There’s so many chips on the surface of the stock, your bound to have some me chip recutting causing poor surface finish on your parts. I understand you can’t use flood coolant on your router, but would you be able to use something like a FogBuster system?
Those look like some very nice impellers. Do you supply this to Honda or do they have their own? Also I am so disappointed with BMW, I had a 5 series wagon, the water pump impeller exploded. It was made of plastic. Can you imagine a plastic water pump impeller?
funny, I just pulled mine apart and will be taking off the water pump impeller tomorrow!
Cool layout trick!!!
Your lathe work is fast and efficient. What is your method? Where can I learn it step by step?
To be honest: By doing it a lot, and watching others. I learned a lot by watching Robin Renzetti doing lathe work, he is to me a master of efficient manual lathe work.
@@StefanGotteswinter You are a master. Our European Ranzetti with cleaner shop. Can't wait for your new grinding machine.
Interesting CAM insights, thank you for that. And the spray marking with the marker and compressed air is a very cool trick, too! 😊
Very nice, have you thought of rotary broaching for the spline ? I have made some custom broaches for apps like this
Another great video. If you are using the same tool, why not cut the flats on the first pass?
Nice! - i guess the CX range has been out of productions for quite some time now
Do you mind sharing what aluminium were you using?
wrop, wrop, wrop, there we go... you make it sound so simple.
Sorry I'm late to this party. I watched the spline-cutting video. Why was it necessary to have such an accurate diameter center bore? (I am not a machinist, merely an interested amateur.)
Did you not turn the outside of the „cone“ on the lathe to avoid deflection when cnc machining? Why not use a pocket hole in place where the trough hole will go later to index the workpiece on the fixture?