Topic: 3D printable parts repository

[OldGreyBeast]

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?

[slikwilli420]

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.

[OldGreyBeast]

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.

[OldGreyBeast]

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

[Gurp]

Excellent thread!! This needs to be a sticky!

[Bailgang]

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. 

[bert1]

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)

[Tim2005]

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?

[OldGreyBeast]

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

[MauiK3]

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.

[wolf550]

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.

[OldGreyBeast]

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.

[RAFster122s]

PLA is not very heat stable, better to print things for the bike with PET or ABS filament…

[fantino]

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

[OldGreyBeast]

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.

[Mark K]

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.

[GurgleMurgle]

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?

[kanak_atk]

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