Author Topic: 3D printable parts repository  (Read 2318 times)

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Offline OldGreyBeast

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3D printable parts repository
« on: September 26, 2022, 02:03:39 PM »
I've made a couple parts so far that I either couldn't find online or just cost too much.  Have several more in the making, but figured I'd go ahead and start off with what I've got.

First batch is airbox stuff since that's what I need at the moment.

COVER - AIR CLEANER ELEMENT 17350-374-003 (CB550 Airbox Part 1.stl and CB550 Air Filter Plug.stl)
This is a non functional blank for people like myself that have plugged the crank case breather stuff off on your airbox.  Without this part in there though the air filter will just flop around in the airbox housing.  Seems most of the airboxes on eBay don't include this bit.  It's 2 pieces, a plug for the bottom of the air filter and the part that sits in the air filter housing.  I made the plug so that it's a little loose fitting in case there are tolerance differences in the air filters, this one fits both the aftermarket filters I have.




SPRING, AIR CLEANER ELEMENT 17216-323-020 (CB550 Air Filter Retainer.stl)
This is the piece that holds the air filter snug in the housing.



If you need any of these and don't have access to a printer let me know and I'll see about printing one up for you for a couple bucks to cover materials and shipping.  As I make more parts I plan to add them to this thread.

Anyone else have any parts they've modeled and printed?
1974 CB550, 1975 CB550, 1976 CB550, 1986.5 Nissan D21, 1987 Mercedes 190D Turbo, 2010 Mercedes E350, 2016 Suzuki GSX-S1000

Offline slikwilli420

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Re: 3D printable parts repository
« Reply #1 on: September 28, 2022, 04:36:50 AM »
I just picked up a Prusa Mk3 and am trying to figure out what to print for bikes. Working on a few things now but always looking for good ideas.
« Last Edit: September 30, 2022, 07:18:45 PM by slikwilli420 »
All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
AHRMA Superbike Heavyweight Racer: http://forums.sohc4.net/index.php/topic,173120.0.html
'76F CB750 Patina Redemption: http://forums.sohc4.net/index.php/topic,174871.0.html

Offline OldGreyBeast

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Re: 3D printable parts repository
« Reply #2 on: September 28, 2022, 10:47:42 AM »
This one was very fiddly to get right, for me the fit is nice and snug (Ender-3, PLA+ at 0.2 resolution) but if it's too loose you can always put a little glue or loctite on to hold it.  Couldn't find a part number for this and don't have an original to reference but maybe this looks close to the original.  This is the trip meter knob for the gauges that have it on the rear of the speedo. 1975 CB550 trip meter knob.zip - file is zipped so it will meet the attachment size limits of the forum, .stl file is in the .zip.

1974 CB550, 1975 CB550, 1976 CB550, 1986.5 Nissan D21, 1987 Mercedes 190D Turbo, 2010 Mercedes E350, 2016 Suzuki GSX-S1000

Offline OldGreyBeast

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Re: 3D printable parts repository
« Reply #3 on: September 28, 2022, 04:47:55 PM »
Next 2 parts are related to the brake master cylinder/lever.  I would recommend printing these with 100% infill.
BUSH, R HANDLEBAR CONTROL LEVER - 45526-341-000

PLATE, CONTROL LEVER BUSH SETTING - 45527-300-000

1974 CB550, 1975 CB550, 1976 CB550, 1986.5 Nissan D21, 1987 Mercedes 190D Turbo, 2010 Mercedes E350, 2016 Suzuki GSX-S1000

Online Gurp

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Re: 3D printable parts repository
« Reply #4 on: September 28, 2022, 08:13:50 PM »
Excellent thread!! This needs to be a sticky!
slow Progress 74 cb550.

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Future project 77 Cb750 Amen Savior

Offline Bailgang

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Re: 3D printable parts repository
« Reply #5 on: September 30, 2022, 08:27:00 AM »
My 75 cb400f was missing the lid for its air filter box so my oldest son printed this one up for me. He needs to tweak the program for it because it needs to be hollowed out a bit underneath to clear the air filer element itself and the filter retaining spring, I had neither when he first made it so we didn't realize the fitment issue until I did but he's on the right track. I'll post the file for it when he sorts it out. 
Scott


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77 cb750 F2
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Offline bert1

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Re: 3D printable parts repository
« Reply #6 on: October 01, 2022, 01:15:40 PM »
3d printing is limited due to strength but still extremely useful. An ABS parts at 80% infill will withstand lots of force.

 In a few decades metal 3d printers will be more accessible and will be a complete game changer. Some race cars already have 3d printed aluminum intake manifolds (papadakis racing)

Offline Tim2005

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Re: 3D printable parts repository
« Reply #7 on: October 01, 2022, 01:19:50 PM »
Yes I can see this having a lot of future for providing hard to get parts. For those of us who are yet to invest in the equipment,  I see there are several offers of 3D printing services available online, such as this for example. https://www.ebay.co.uk/itm/325360942651    . I notice they offer many different materials too, what are people using?

Offline OldGreyBeast

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Re: 3D printable parts repository
« Reply #8 on: October 02, 2022, 07:40:19 AM »
I've printed all my parts so far out of PLA+, however what I've made so far isn't really load bearing.  Like bert1 said for parts that would have more stress/vibration on them ABS would be the better solution. 

I do look forward to when metal printing becomes affordable by the common man.  I think we're still many years away from that unfortunately, but for now even being able to print polymer is a huge boon.

If anyone has a request for a part they'd like a 3d model of feel free to shoot me a PM and I'll see what I can do.  I just want to do my best to keep these bikes on the road :)
1974 CB550, 1975 CB550, 1976 CB550, 1986.5 Nissan D21, 1987 Mercedes 190D Turbo, 2010 Mercedes E350, 2016 Suzuki GSX-S1000

Offline MauiK3

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Re: 3D printable parts repository
« Reply #9 on: October 02, 2022, 07:57:13 AM »
Looks like a great start. For now, the little parts that don't need to be very strong are hard to find.
There is a cottage industry in this I'm sure.
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline wolf550

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Re: 3D printable parts repository
« Reply #10 on: October 02, 2022, 09:26:30 AM »
I have wanted to but have yet to try the lost PLA casting that Ive seen done from myfordboy with investment casts. when I saw the 3d printed airbox chamber delete awhile ago I knew that the 3d print is something that will be very useful in the future.
74' CB550 (Sold)
71' CB500/550 (Sold)

Offline OldGreyBeast

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Re: 3D printable parts repository
« Reply #11 on: October 02, 2022, 10:16:46 AM »
I'm gonna try my hand at replicating the entire airbox (minus the PCV recirculation stuff) via 3d printing when I'm ready to get the 3rd bike running.
1974 CB550, 1975 CB550, 1976 CB550, 1986.5 Nissan D21, 1987 Mercedes 190D Turbo, 2010 Mercedes E350, 2016 Suzuki GSX-S1000

Offline RAFster122s

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Re: 3D printable parts repository
« Reply #12 on: October 02, 2022, 12:59:45 PM »
PLA is not very heat stable, better to print things for the bike with PET or ABS filament…
David- back in the desert SW!

Offline fantino

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Re: 3D printable parts repository
« Reply #13 on: October 02, 2022, 03:56:40 PM »
MJF printers (similar to SLS but uses inkjet printer heads and IR panels instead of lasers) have made sintered thermoplastic parts quite approachable from a hobby builder perspective (for small to medium parts), compared to the hassle/learning curve/startup costs of DIY FDM printing, and results in truly functional quality  parts. Glass filled nylon 12 is best for rigid, high temp “under-hood” parts and Nylon 11 for things that need to be exceptionally tough and semi-flexible (side covers and such), TPU is also becoming more available amongst most vendors for very flexible parts. Surface finish and tolerances are very good as well compared to FDM, and this process inherently produces parts that are air/water tight compared to the higher porosity of SLS.

I’m not associated with any of these companies, but I do a lot of purchasing and prototyping at work, I’ve found Xometry, Fictiv and Fathom consistently have some of the lowest prices for low qty MJF printing.

Also I love this thread! I have some stuff I’ve been working on I’ll share out when they’re finished up, including some air box designs for CR26 carbs on a 500\550 :)
« Last Edit: October 02, 2022, 04:03:52 PM by fantino »

Offline OldGreyBeast

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Re: 3D printable parts repository
« Reply #14 on: October 02, 2022, 08:32:05 PM »
PLA is not very heat stable, better to print things for the bike with PET or ABS filament…

I've had some 3d printed PLA parts in the engine bays of my old Nissan D21 and Mercedes 190d for several years without issue.  Probably not the best in the world but there's not enough heat in the airbox to be of concern.
1974 CB550, 1975 CB550, 1976 CB550, 1986.5 Nissan D21, 1987 Mercedes 190D Turbo, 2010 Mercedes E350, 2016 Suzuki GSX-S1000

Offline Mark K

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Re: 3D printable parts repository
« Reply #15 on: December 21, 2022, 08:27:16 PM »
Any chance one of these could be made?
The plastic cover that goes over the starter safety unit? It does not have a separate part number, but appears that it is a cover that has a mount hole on each side, with a metal insert.
Mine is cracked and missing half the cover. The part isn't made anymore (that I can find). I can measure and send dimensions if anyone is willing to attempt to make it and I'd pay you for it.
« Last Edit: December 21, 2022, 08:32:51 PM by Mark K »
Current bikes
'13 Yamaha FJR1300, '73 Honda CB750K3 (current project), '19 Kawasaki KLX 140G, '72 Honda CL70K3, '70 Honda SL350 (next project)

Former bikes
'74 Yamaha 60, '72 Maico 250, '74 Kawasaki 250 S1, '82 Kawasaki KZ550, '84 Honda VF700F Interceptor, '99 HD FLSTS Heritage Springer, '97 HD FLHTCUI Ultra Classic '05 HD FLHT Electraglide, '9? Buell Lightning, '03 FLHTCUI Ultra Classic,'14 Honda CRF250L

Offline GurgleMurgle

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Re: 3D printable parts repository
« Reply #16 on: December 22, 2022, 01:29:30 PM »
I’ve piddled around attempting to make a simple little fitting for doing a clear tube float height test on my 75 cb750f. A 6mm OD tube with a 3mm ID, threaded a few mm on one end would do it, probably 20mm long.  I kind of assumed the drain plugs are typical M6x1 threads but apparently not.   1/4-28 is close but no cigar (obviously).  Any idea what that thread really is? Anybody made one already that I can steal?

Offline kanak_atk

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Re: 3D printable parts repository
« Reply #17 on: October 12, 2024, 11:46:07 PM »
Hey, I just stumbled across your YouTube video describing these and I was wondering if you’ve drawn up and printed any other parts since then. I have been scouring the web for the air filter/tool tray for the 550k. Would it be possible to enlist your skills and services to create one that I could purchase from you? eBay has two I’ve been eyeing but old plastic can be finicky and the 90-140 dollar price range between them is making me wonder if there’s a better option out there. Anyway let me know!! Also —>  I do need the air filter spring too if you sell and ship those still haha
82 CB650 "The Maytag"

Offline Botaylor

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Re: 3D printable parts repository
« Reply #18 on: February 24, 2025, 06:28:56 PM »
Hi all, I have been working away at trying to somewhat recreate a usable airbox for my old CB500. The attached is what I have come up with so far. I can confirm it fits the CB500 frame with the battery bracket removed. It is mounted to the carbs using 38mm I.D silicon tubing. I currently have a cheap 55mm pod filter fitted.

High chance this will cop a lot of hate as it is highly unlikely to replicate the original airbox vacuum pressures / air flow conditions in an way. If anyone has the skills, some airflow modelling would be interesting. My bike requires a top end rebuild currently due to low compression so I am unable to undertake any serious testing.

Hopefully somebody with a good running bike and a 3D printer might be willing to undertake some testing.

Any questions please let me know.
« Last Edit: February 24, 2025, 06:31:38 PM by Botaylor »

Offline HondaMan

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Re: 3D printable parts repository
« Reply #19 on: February 24, 2025, 10:40:52 PM »
Nicely done!
That's the first non-OEM airbox plenum I've seen done for the Mid-Fours. Can you show some more pictures of it?
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Offline Botaylor

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Re: 3D printable parts repository
« Reply #20 on: February 24, 2025, 11:37:58 PM »
Hi HondaMan,

Thank you, appreciate it.

Here are some more photos.

Whether it works remains to be seen but I figured it couldn't be worse than individual pods.

Offline RAFster122s

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Re: 3D printable parts repository
« Reply #21 on: February 25, 2025, 01:09:11 AM »
There was a K&N pod filter design that used the 550 plenum, the filter fairly sizeable. Long since unavailable, I picked one up last year or year before...time is blurring, or is it memory?
Now shipping rates drive the price of everything up even more.
David- back in the desert SW!

Online newday777

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Re: 3D printable parts repository
« Reply #22 on: February 25, 2025, 03:04:20 AM »
Hi HondaMan,

Thank you, appreciate it.

Here are some more photos.

Whether it works remains to be seen but I figured it couldn't be worse than individual pods.
Nice job. I wonder if it will have enough air intake to meet the needs of the carbs with that small pod filter?

kerryb posted this the other day that he made up for his CB650 DOHC (cafe mod with battery under the rear hump in the So you want to run pods thread), that he uses a flat cabin filter under the seat that looks promising and I was thinking maybe it would be a good substitute to adapt for the CB500/550 guys with missing airbox parts??
Stu
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My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
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Offline MauiK3

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Re: 3D printable parts repository
« Reply #23 on: February 25, 2025, 06:47:46 AM »
Very cool stuff.
I have a young friend that printed some stuff for my Acty. Very simple but really great stuff.
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Offline seanbarney41

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Re: 3D printable parts repository
« Reply #24 on: February 25, 2025, 07:58:33 AM »
If you design these plenums to accept the oem airbox boots, it should work well!
If it works good, it looks good...