3D printed dirtbike parts - UPDATE

Nbonney54 wrote:

Just for reference, idk what scanner was used for what you saw. We have the newest GOM 5 scanner and a 5 axis in the shop...

Just for reference, idk what scanner was used for what you saw. We have the newest GOM 5 scanner and a 5 axis in the shop. We aren’t a garage shop, we make extremely tight toleranced parts on the daily. I use a software package to transfer in my G3D files and then I go through a reverse enegineer them manually with the software.

philG wrote:

Dont get me wrong , they are fantastic bits of kit, at a fraction of the cost of conventional measuring machines, but high accuracy isnt what...

Dont get me wrong , they are fantastic bits of kit, at a fraction of the cost of conventional measuring machines, but high accuracy isnt what they are .


I have worked in measurement R&D and have done a lot of analysis on GOM measurement. Most of that work was people coming to us looking at wanting to buy one , at the fraction of the cost of a conventional CMM, after seeing a demo, but then finding out they cant have one because it wont hit the numbers.

Its a scanner, so its inherent accuracy in pure measurement terms is quite low, to the point where you cant get them to actually quote a first term accuracy. They are fantastic at measuring things that are complicated free form very quickly , as long as you arent working to tight machining limits , which is why they are great for casting / forging validation, and large stuff measured with the aid of robots .

We use GOM for measuring large assemblies quickly (well after you have spent 6 hours stickering them up), but all of the bits in that assembly have to measured properly on our CMM's because the GOM wont pass an MSA to allow it to be used.

Nbonney54 wrote:

I think we are off base on what scanners I use. Our newer scanner cost 250k. It’s good down to tenths of a thou....

philG wrote:

Dont get me wrong , they are fantastic bits of kit, at a fraction of the cost of conventional measuring machines, but high accuracy isnt what...

Dont get me wrong , they are fantastic bits of kit, at a fraction of the cost of conventional measuring machines, but high accuracy isnt what they are .


I have worked in measurement R&D and have done a lot of analysis on GOM measurement. Most of that work was people coming to us looking at wanting to buy one , at the fraction of the cost of a conventional CMM, after seeing a demo, but then finding out they cant have one because it wont hit the numbers.

Its a scanner, so its inherent accuracy in pure measurement terms is quite low, to the point where you cant get them to actually quote a first term accuracy. They are fantastic at measuring things that are complicated free form very quickly , as long as you arent working to tight machining limits , which is why they are great for casting / forging validation, and large stuff measured with the aid of robots .

We use GOM for measuring large assemblies quickly (well after you have spent 6 hours stickering them up), but all of the bits in that assembly have to measured properly on our CMM's because the GOM wont pass an MSA to allow it to be used.

Nbonney54 wrote:

I think we are off base on what scanners I use. Our newer scanner cost 250k. It’s good down to tenths of a thou....

philG wrote:

You think its good to 1/10ths of a thou..because it prints to 4 decimal places. We have kit that will measure to 1/10ths of a micron...

You think its good to 1/10ths of a thou..because it prints to 4 decimal places. We have kit that will measure to 1/10ths of a micron that cost over a $1m To be able to accurately measure to your level , the kit has to have a repeatable resolution 10 times better than that, which it simply hasnt. Like i said , they do what they do fantasticaly but if you are looking at machined parts, the fact that you have to spray them to even get a result already means you arent accurate. Even adding full photogramettry wont get you close to a conventional CMM

Nbonney54 wrote:

I think we are off base on what scanners I use. Our newer scanner cost 250k. It’s good down to tenths of a thou....

philG wrote:

You think its good to 1/10ths of a thou..because it prints to 4 decimal places. We have kit that will measure to 1/10ths of a micron...

You think its good to 1/10ths of a thou..because it prints to 4 decimal places. We have kit that will measure to 1/10ths of a micron that cost over a $1m To be able to accurately measure to your level , the kit has to have a repeatable resolution 10 times better than that, which it simply hasnt. Like i said , they do what they do fantasticaly but if you are looking at machined parts, the fact that you have to spray them to even get a result already means you arent accurate. Even adding full photogramettry wont get you close to a conventional CMM

MxKyle (MD) wrote:

I don't really thing they plan on scanning or printing any dirt bike parts that need a 10:1 TAR.

--KT--

Kawasaki-rider wrote:

"My daddys truck is better than yours"

philG wrote:

You think its good to 1/10ths of a thou..because it prints to 4 decimal places. We have kit that will measure to 1/10ths of a micron...

You think its good to 1/10ths of a thou..because it prints to 4 decimal places. We have kit that will measure to 1/10ths of a micron that cost over a $1m To be able to accurately measure to your level , the kit has to have a repeatable resolution 10 times better than that, which it simply hasnt. Like i said , they do what they do fantasticaly but if you are looking at machined parts, the fact that you have to spray them to even get a result already means you arent accurate. Even adding full photogramettry wont get you close to a conventional CMM

MxKyle (MD) wrote:

I don't really thing they plan on scanning or printing any dirt bike parts that need a 10:1 TAR.

--KT--

Nbonney54 wrote:

Our scanners are trusted to do inspection on aviation parts for the most advanced jet fighters the world has ever seen. He clearly is a tad...

Our scanners are trusted to do inspection on aviation parts for the most advanced jet fighters the world has ever seen. He clearly is a tad behind the times. Our ATOS 5 doesn’t need many things sprayed unless they are extremely shiny. I do inspections to and see how close our parts our to our cad models.... tenths
CMM is great but is being phased out, the amount of companies who send us things to scan and also have cmm is pretty decent, keeps the lights on.

Once I get completely compitent on our 5Axis i will start machining my own billet parts off scans. Our machinist is fully confident in our scanners and our 5Axis that I could basically build an entire engine to spec.

MxKyle (MD) wrote:

Yep, it's close enough for government work. BTW, I design F35 training simulators and got kudos for bringing 3D printed duplicates into that industry instead of...

Yep, it's close enough for government work. BTW, I design F35 training simulators and got kudos for bringing 3D printed duplicates into that industry instead of using original aircraft parts. It's hard to buy aircraft parts when the bird assembly line is always short. (That is kind of a joke too. I visited that assembly line and there is nothing short about it. It is exactly a mile long. Coolest building I've ever been in and the F35s were pretty cool too.)

We use a Faro Arm with a scanning head. It's amazing. I always get a kick of looking at a model of a scanned part and clearly reading the ink stamped part number from the original part.

--KT--

mx_phreek wrote:

Why are we getting into a pissing contest about who has the best printer when this thread is just about guys showing cool stuff they have...

Why are we getting into a pissing contest about who has the best printer when this thread is just about guys showing cool stuff they have made in their garages for there dirt bikes.

Mm471 wrote:

Some air box wash covers and a test print handguard im working on [img]https://p.vitalmx.com/photos/forums/2019/04/15/339033/s1200_F40B5906_5DC4_41F5_9855_7AE1F7435367.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2019/04/15/339034/s1200_65D9C4D3_0421_43C9_A4E4_401276D2225C.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2019/04/15/339032/s1200_B6729543_86FC_4E8F_8E27_50ADD544839C.jpg[/img]

Some air box wash covers and a test print handguard im working on

m121c wrote:

Started a design engineering internship for a company that has a fleet of 3D printers, had a “productive” first week. Footpeg folds up too, just meant...

Started a design engineering internship for a company that has a fleet of 3D printers, had a “productive” first week. Footpeg folds up too, just meant to hold my phone.

JM485 wrote:

Well my ignition cover finally met its demise this weekend:laugh: [img]https://p.vitalmx.com/photos/forums/2019/05/29/350909/s1200_7A72A86C_F31B_42E9_AE8A_BDC2BD9AAE23.jpg[/img]

Well my ignition cover finally met its demise this weekend

danman wrote:

Did a rock hit it, crash, ???

JM485 wrote:

Not really sure, it definitely wasn’t a crash but there were a ton of tree roots sticking out at odd angles where I was riding, so...

Not really sure, it definitely wasn’t a crash but there were a ton of tree roots sticking out at odd angles where I was riding, so I’d have to guess I probably caught one of those. I also bent my pipe mount so I’m guessing I hit something relatively hard, but either way I’m going to strengthen the design and re-print. I’m actually really happy with how the plastic looked when it broke though, it looked like one solid piece so I’m definitely getting good layer adhesion.

m121c wrote:

Started a design engineering internship for a company that has a fleet of 3D printers, had a “productive” first week. Footpeg folds up too, just meant...

Started a design engineering internship for a company that has a fleet of 3D printers, had a “productive” first week. Footpeg folds up too, just meant to hold my phone.

JM485 wrote:

Not really sure, it definitely wasn’t a crash but there were a ton of tree roots sticking out at odd angles where I was riding, so...

Not really sure, it definitely wasn’t a crash but there were a ton of tree roots sticking out at odd angles where I was riding, so I’d have to guess I probably caught one of those. I also bent my pipe mount so I’m guessing I hit something relatively hard, but either way I’m going to strengthen the design and re-print. I’m actually really happy with how the plastic looked when it broke though, it looked like one solid piece so I’m definitely getting good layer adhesion.

colintrax wrote:

What layer height did you use?