How I scanned the Lotus Esprit engine block - 3D scan Revopoint POP2
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- Опубликовано: 14 июл 2024
- I am now affiliated with Revopoint, if you wish to support my work, please use the link below :
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Aluminium Engine block (520mm x 320mm x 220mm).
Finished model can be viewed here : skfb.ly/otLGK
Blender tutorial can be viewed here : • VERY basic scan -to- B...
Other examples of my work : sketchfab.com/jon.himself
There are many creative ways to scan and make all 3D objects, this is just an example.
Tutorials are meant to show mistakes as well as success for learning purposes.
Please leave feedback / suggestions / requests in comments below.
I try to show real world scanning / 3D examples, not just props.
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#Revopoint #POP2 #3Dscan
Hardware Credits :
- Revopoint POP II
Software Credits :
- Revopoint HandyScan / HandyStudio
- Blender
- Streamlabs Desktop screen capture
- DaVinci Resolve editor
Music Credits:
- Nightingale Lofi - Freedom
- Nightingale Lofi - Remember
- Nightingale Lofi - Break Free
- Nightingale Lofi - Serenity
Contact me : jonhimself@protonmail.com
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0:00 - Intro
2:46 - Preparation
3:55 - Scanning
5:15 - Merging Scans
4:17 - Test 2 - Vertical load
8:06 - Analysis in Blender
13:09 - Conclusions 
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As a newb to scanning your videos have been vital to my learning! Thank you for taking your time and showing us how this is done!!
Glad I could share some of my experience. Patience is the key and challenge yourself.
Your video has helped me fix all my scanning issues! I was about to send my Revo Mini back but now I have watched this I get perfect scans!
Very educational and confidence-building. Thanks for posting this.
Thank you! Fantastic video, simply laid out, convinced me to get the Pop2 over the Scan Lizard. I can't wait to start scanning car parts for modifications! I mentioned you specifically during the order.
Thanks for the mention - glad the video helped.
Using a cutting plane to orient the scan is F-ing genius!!!
Just received my Pop2 scanner. I'm also on a learning curve using it. Superb video. Thank you for sharing 👍
Glad you liked it :D
How is your experience so far? Please let me know I want to get one of these, but dont see much of authentic feedback around
Well done. I enjoyed understanding your process to achieve the results you have. I am impressed in the accuracy achieved. Thanks again for sharing with us.
Thanks. At some later date I want to scan the whole induction system to measure the CFM losses in the intake. When we port and flow the system I should be able to quantify the losses / gains.... who knows, lots of work for sure.
@@JonHimself please do as that will be so awesome to see!
Thankyou for sharing your process and techniques. Very helpful as an amatuer learning
Thanks for this Jon. Engine blocks and engine bays were one area I had in mind for using my POP2 when it arrives.
I'll be watching this a few times over and over to see if I can manage the same feat.
Cheers!
Thanks - you will manage it no probs. The key in my opinion is this method, of using multiple smaller detailed scans and then merging them onto a frame (armature) so the merging software doesn't get out of hand. I've had the software seriously warp merged scans, but the simple once over frame stops that from happening.
@@JonHimself Cheers! Large sweeping scan for a framework and fill in the details sounds great. I inagine for a car body shell with less crevices shouldn't be too much of a challenge with this technique.
@@thomashenderson3901 Yes but if I was doing a car (again) I would create an armature in the software like blender and then manually add the panels. You can do this by physically measuring fixed detail like panel lines and then moving each panel into place. Something for a future video perhaps.
Amazing! Thank you. Very academic presentation
Great work! My scanner has been stuck at customs for nearly 3 weeks, cant wait to get started with it. Thanks for sharing your workflow and results.
Thanks - Its worth the wait, if you've not used one before patience is the key. Hopefully some of my other videos will be of use.
Have you got your model delivered? How is the product? Can you comment on quality please?
@@Tsarkovsky I've only had a good experience with the Revopoint scanners. They are well built, I've had 3 now and left them all powered on for a LONG time without failure which is a good thing.
Highly informative. Thanks!
Thanks for uploading! Found you on Facebook group with this video post. Ordered mine as well
Nice video. Thanks for sharing the knowledge.
Another great video, I particularly like the Blender skills and techniques, Blender's application to engineering tasks like this isn't something I'd been that aware of. That scanner is very impressive, but it's your ability to understand its limitations and use techniques to circumvent them that's key. Great stuff.
Thanks Andy, I do love Blender (there is a little shrine to the developers in my garden 😋) but it's ability to handle big meshes and the clean up tools make it worth learning. Check out the particle and physics side of things if you're interested.
What program did you use for blending the STL scans together
I was looking for reviews on the revopoint... I noticed your channel sitting at 999 subs, I had to hit the sub button and help you cross that 1,000 mark !! CONGRATS !! I hope this gets you monitized.
Haha! Thank you so much Mr 1,000, thats really great of you :)
Great videos, I've watched the others over the past few months as well. Please show the workflow and results from transforming your meshed model to CAD model in future videos for the engine block.
That's the plan. I've never done a solidworks tutorial before as I often do a fair bit of back and forth or exercise features I haven't used in a while to achieve something. The block is easily achieved but a fairly involved model. I need to find some larger measuring tools as well ;)
This is awesome, thanks for sharing!
Thanks, hope it was useful.
I look forward to my POP2 eventually being shipped.
Its worth the wait.
Fascinating viewing, personally I found it very interesting.
Good insight on your process, thanks. I have experience in reverse engineering from scans and it's easier to get the positions of studs than holes, especially small ones.
100% - personally I put the studs in and measure them with a caliper and deduct a stud diameter from the reading. I only use the scanner to do jobs I cannot measure by hand, complex curves or visualisation - trust but verify 😄
Great video. I dont know why you dont have a ton more likes. But i gave you one
Thanks, I appreciate it :)
If you notice I don't ask for likes and subscribes - so everything here happens how it happens.
I have the HP SLS Scanner. That software (formally David) allows you to click on points of the model and it will do the alignment.
I bought a lazy susan bearing from the local hardware atore, cut a round mdf platter for it and scanned my transmission and wheel spindles
I got the 9-10in steel bearing and it can hold 1000lbs… sorry for the freedom units… 250mm and 450kilos? Rough approximations
@@josephjones4293 yup I have a few turn tables but I'm mainly scanning planar sides here so no real need for it. My comment about it being too big was a little joke at the small turn table which they provide hehe. No that that's a bad turn table, it works great.
Very informative video, thanks for sharing. The only thing that I'd suggest taking a look at is the notion that no software or computer can handle more than 10M points....THIS software can't but others out there can.... Nubigon, Cloud Compare, Geomagic, Polyworks, Design X, MeshLab..... just to name a few. And you don't need a high end computer..... I'm using all of these on my Lenovo Laptop P53.
I said 'most computers' which for the average user of a low end cost scanner and this software is a correct statement. Comparing other software has no relevance, all the processing, and point fusing HAS to be done in Revopoint's software which drives the scanner - for a bundled package is good but has its obvious limits, me a lot of those sequences are sped up 20x
The point was to cut down un-necessary data, there is nothing more frustrating than doing a great scan only for the computer to run out of memory and crash!
Very nice example of a large / detailed project. I like how you show your approach to constraining the scanning error (ie. adding detailed areas to the scan after doing a rough whole scan). On the accuracy checks that you did, do you have the capability to best-fit a plane to the face or to fit cylinders to the bearings? That might give a better understanding of accuracy/flatness than trying to manually align?
No I aligned everything as shown. A best fit might work but I don't think the scan is accurate enough, meaning you can see overlaps of the other scans. What would be ideal is a 3 point plane picking the areas that best suited. Right now I find eye balling does as good a job.
you measured that angle on a crappy plastic table probably flexing as well. I'm surprised the scan angle wasn't 45deg dead on. Either way very informative and well organized video
The time information is good for me as a reference. Also pre aligning the parts is a good tip. I got my scanner now and am curious if I manage to do my foil wings and boat parts
Have a look at my other videos, the 1st one I did was a fin for a racing windsurfing board in carbon. You should have no problems.
@@JonHimself they are all saved in my watchlist allready
Product development engineer here. Love your channel and your work, very detailed and easy to follow. Glad to see consumer grade scanners are proving to be more accessible (and affordable) while providing fairly accurate results. I utilize the creaform scanners at work and have been thinking about picking one of these up to do my own side projects. Based on your experience with the scanner and software, would you recommend this scanner for someone looking to reverse engineer and build molds for high performance automotive parts (aero, suspension, etc) considering you’ve been using this for your project. Or would you suggest a different product ?
I haven't tried any other devices tbh. I looked at something that was affordable just to do one job on the car which was for the front duct.... ended up doing all this so the product exceeded my expectations.
If you know scanning (creaform trained here) then the POP2 is great imo, esp for the cost, your experience will enable you to push the device to its potential which as you can see from the scans I've done it's well capable of doing.
Love the Video I am really keen on purchasing this scanner but very wary of Chinese cheap will it work or wont work thoughts,, You have given me a level of confidence that it will... but you also made it clear how to use the scanner which I am grateful for...
Thanks, hopefully the results speak for themselves.
I appreciate the education. I want to try the alignment in that version of the program. I hadn't heard of an armature scan before. That concept should be helpful.
Great video and very encouraging results !! You mention the "armature method" what other methods are there ??
Thanks - the key is the 1st (armature) scan which makes it different to a standard merge. A basic 'Overlap' is another method, where all the parts overlap into the next - you'd only do this is you have 2-3 scans to merge though, the more scans you want to merge, you're better off using an armature. You could also try and scan in one piece if you're brave.
You can also scan and manually align in a 3rd party software using physical measurements, this is more suited to larger objects - If you look at my Sketchfab, that's how I did the car body shell.
Excellent video! Did you need to spray the casting with anything to get the scanner to see the aluminum?
Have they given you a Mini to play with, @Jon Himself? I'm especially intrigued by it given the work you've been turning out with the Pop 2..
Hi, not yet - I haven't really looked into the Mini (I will later). I am a bit tucked up with time right now (this is my 1st video in a while).
I would love to scan ANY engine block. But I don't have one to scan.
Awesome video. I got my POP2 about 2 weeks ago but have not had time to play with it yet. If you mentioned it and I missed it, I apologize, but what is the program you use to merge the 2 meshes or scans?
Its the older version of Revoscans software (V3.1.02) - it seems to run better for me, the later version crashes here and there. I appreciate it can be confusing, I need to persevere with the new software.
Hi Jon, Great demo, Do you have any idea IF you could use both the POP2 scanner AND the Mini that Revpoint have and make independent scans, then use the armature method to assemble the meshes together from BOTH scanners? For me, I need a high degree of accuracy in some areas of the model than I think the POP 2 is cable of, then other areas need to be much closer in tolerance like the mini is capable of replicating. questions is do they both use the same software and can both types of scans be brought in, aligned, and fused?
They certainly use the same software. As you might have guessed I haven't been scanning for a long time so I haven't tried - I was going to do this with an engine cylinder head, scan the outside with POP2 then the ports with Mini. If you goto my sketchfab (link in description) you can see where I got with this. At the end of the day the only difference is the density of the pixels so I cannot see why it wouldnt work.
On that note I do have the new RANGE scanner coming next month (hopefully) so I might get back into doing some more videos. I'm just busier than a cat at a laser show right now.
We can easily 3D model planar and circular features in various planes, in any CAD software. Could we then attach or scan the 3D scans to these precise references? So we would fill only the in-between matter.
@@jonhimself77 Thanks. I am not sure if you understood my idea. I mean having a partial CAD model of what is easy to draw, then use it in some scan sofware and have the scan software match the scan (edges, holes, etc.) to the CAD geometry used as a reference, a feature finder, not the other way round.
Great video for shows the process.
I’m looking into scanning my engine bay, engine and trans (Volvo 1800E), and seriously leaning towards a POP 2.
Any thoughts with the POP 2 for larger scans like that ?
Yep it will work, but you have to be mindful of how to give it the best chance of success. Dont try scanning in one go to start with, take smaller scans, get them into blender and manually align. once you're happy then just experiment. I have a quick video on Blender and how to orientate scans on my channel.
@@JonHimself did test cloudcompare for mesh alignment already?
For X/Y/Z alignment i use GOM Inspect (free) 3-2-1 method.
Great video, thanks for sharing! Which scanning mode are you using? ”Feature”?
I have a POP1 myself, apart from the higher accuracy with POP2, do you belivie it would be possible to reach same result in terms of coverage vs scanning time with this?
Yep 'Feature' mode.
POP2 is better than POP1 at this as it has a higher frame rate and is stabilised, meaning you get less mis-scans or tracking errors. POP1 would achieve a similar detailed result to this as I scanned the block on 'standard' resolution. You just have to be a bit more understanding of it's limitations of POP1 and how to squeeze the most out of it - so use a tripod and ball and socket joint to help keep the scanner steady. Minimise sunlight (infra red light, ie scan at night time) to help the sensor maintain good tracking. Look at my Sketchfab (link in description) and you'll see some of my POP1 scans there.
There are videos out there where people go into some real depth about accuracy and cloud density between the POP1 and POP2. POP1 is still a good piece of kit.
Great, thanks a lot for your detailed answer!
Jon i have been following some of your work, and i had a quick question. Do you think the POP2 or the Mini is best suited for your type of auto-reverse engineering. I have similar interests but with Aircooled items, but torn between POP2 and Mini, thoughts?
Tough one. POP2 is more reliable for larger scans. Mini is tracks really well but you don't wanna be using it for an engine block, even on low settings it generates too many points. The two overlap for sure, but mini for anything under the size of a laptop, else POP2. If you need to go under a size of a cup/mug then Mini. The Ibiza fish I scanned was the size of my fist scanned with the POP2. It's close but the POP2 has the versatility edge imo. HTH
Hi, What software is used at 4:57 and on to merge the meshes? Seriously great work with using Blender to do a manual alignment of surfaces. It would be great to be able to make planes/lines/points in that program to do a 3-2-1 alignment, but your work in Blender is good enough to make it all useful!
Thanks - it is the OLD version of Revopoint's software. I probably shouldn't have used it as it has caused some confusion, but it just works for me and I needed to get this video out.
Later vids I will have the new software on.
Yeah, Creaform used a piece of software called VX (really bad choice of name) which did a great job of making planes and primitives from scan data (cost a fortune though). However just eyeballing it can produce some really good accuracy as I hope to have shown.
@@JonHimself it seems like the latest version of revostudio doesn't have this merge function? What other software do you recommend to follow the method shown in the video?
Hey Jon, are you using this scanner as a hand-held device? I would like like to scan larger parts such as trunks to make spoilers and etc. Hoping it works for that.
You can, you just have to be aware of drift (ie stacking tolerance errors). If it doesn't work 1st time keep trying, it can be done. Some guy on the forums had a great idea of throwing a crumpled sheet / towel over the back of the car to aid tracking, totally ingenious :)
Could you make a detail video on how to scan? My Pop 2 just arrived today and I'm having trouble with something small.
Check out my other videos, there are numerous examples of how to scan itms.
Once a scan has been acheived how are you importing them into CAD, I continually get errors when trying to import a meshed OBJ into NX? Or is there a video on this as well?
Depends on your CAD software. I usually use STLs as they are a little less of an issue than OBJs.
I take the STL and post process in Blender, then import it into CAD. There is a short video on my channel explaining part of this process.
What a great video and result.
Would it be feasible to scan an engine bay with the pop 2 as well?
Yes, especially if you used this method to capture a large area and then attach smaller scans in place. However for a hobby scanner of this size you will be pushing the limits of what you and the scanning equipment can do. It can be done but a lot of thinking outside the box needs to happen - where there is will there is a way.
@@JonHimself sounds like a huge challenge, but good to hear that it's possible.
I just need the motor mount location positioned correctly to virtually place an engine in the bay to design motor mounts.
Let's see if I can pull it off :)
@@11991Dan good luck!
Beautiful! How about using meshmixer to merge the scans? I find it works much faster than anything else, loads files with zillions of points in seconds where other sw (like solidworks for example) just doesn't want to play (or takes half an hour)
Not tried Meshmixer to merge scans before, I might take a look. I generally try to show the Revopoint software which in my opinion is very good and easy to use.
I don't think mesh mixer have an align function, but meshlab does. Meshlab does a decent job, but I only use it when the native software fails.
Thanks for sharing this! Like/ Subbed! You're awesome !
So you don't use the point stickers on any of your scans? It does not look like there were any applied to the block? I am an engineer and looking to get this scanner to do quick scans in the office and this would be a much cheaper solution to the Metrascan tool that we are looking at for the bargain price of about $120k or a Faro at $50k. Also wondering if you have tried using the Revo on any larger parts and what your results were? Great videos!
I try to avoid them unless it's really necessary. I used Creaform scanners in the past and whilst they are excellent, they are pricey. I've scanned the majority of a car bodyshell with the POP but the drift error is so large on such a small device. Large objects can be done with some creative thinking and for its cost it is a great bit of kit, but its going to have limitations, especially accuracy over distance.
did you ever try to scan scale models with that scanner?
I'm looking for a 3d-scanner for scanning 1/24 & 1/18 diecast cars and assembly kits, i want to use that 3d-models as a reference during 3d-modelling.
Mini is much better equipped for this over the POP2 as it can see much more detail.
Yeah, thanks!
Have you compared them both with Creality Lizard?
Great job! What's the spec of your PC to handle all these jobs? and how how long does it take you from the first scan to finish align and merge?
Its an old PC but still works. i7-6600K // 16GB RAM // GTX 1060 6GB. From start to finish this took me about......3 hrs including a few mis-scans, planning etc, keeping in mind I have a lot of hours experience scanning so I can do it quite quickly.
@@JonHimself this is really no easy task!
@@leochen591 its like anything, it get easier with practice. The idea of these vids is to show what people can achieve, once you know what the scanner can do you can set your sights accordingly. After that it is patience, experience and giving the scanner the best chance of success.
Hi, thanks for your impressive video. May I know is this scanner good for truck bumper and chassis scanning? Will it be able to meet the accuracy of bolt mounting point?
It can be done but you'd need to use a different method by making a parametric armature and manually positioning separate scans on top of that. If that sounds hard then it is and it should be avoided unless you have a lot of experience. I may do a video on this when I re-do the car body.
@@JonHimself Great!! Can’t wait for that😎
what mode did you use for the scans ? feature ? ....I have problem where the scanner usually just start creating another instance on top of the previous scan without dropping. So basicly you can make small errors more and more as the scanning goes along. Especially if you try to do hand held. with tripod and the object rotating is much more reliable. It´s like the skanner has better and some really shitty days when nothing works.
Feature mode, hardly use any other to be honest. Compound errors are generally a combination of shake (which the POP2 really supresses) - and lack of locking features which twists the scan very slightly resulting in drift or ghosting. Keep an eye on the scan and use the pause > undo function to step backward in time and re-do portions that are undesirable.
Hi John.
First of all thanks for your videos clear explanation, TOP.
I want to do something similar in the future. For that I want to buy a laptop for this kind of work.
I assume you also use a laptop for this kind of work.
Will 16Mb RAM and 4Mb memory on the video card be enough?
I'd love to hear from you.
Sincerely, Geert Wijnhoven
I'm using a mix of laptop and desktop. My laptop is only 8GB, desktop 16GB but performance based. It has no real issues but I like to compress the scans to reduce surface noise and artefacts anyways. You want more than 4GB of RAM without a doubt, the bigger the scans the more memory you need and processing power.
@@JonHimself thanks for the information Jon
6:05 you mention software bending scans to merge. Based on that comment, the software generates a 'best fit' when merging files? The merge is executed automatically?
Based on my experience, yes - this is why it is important to create an armature from a single scan so the additional scans have something to accurately align to. I may do a bloopers reel at some point to show all the issues I have had, I did have one issues when aligning the parts in this job where the large side was completely bent, was very strange.
After aligning, the scan should be assessed and then the -merge- button pressed to confirm.
So would you really recommend Revopoint POP2 ? It took me too long to scan a simple statue ?
I have a lot of experience scanning which is an advantage for sure. Yes I'd recommend the POP2, for the cost you can get pretty amazing results, hopefully my videos speak for themselves. It obviously isn't inspection quality but its not far off - I wasn't able to compare it to a scanner where I used to work because the $100,000 kit kept breaking - the POP however worked fine, so again - do you pay for something that is great but breaks a lot or compromise and get something reliable ?
Hi,
A quick question. Could the 3D files you obtain using this method be used in video games? Basically, keeping a maximum of quality and details, what is their weight and the number of vertices?
Thanks
Hi - basically no as the poly count is WAY too high. i try and keep the vertices in the 1-3 million mark if working in Blender which handles point clouds like a boss. In CAD systems especially Solidworks, you need to really slash that to 100,000. Some CAD systems can handle meshes much better.
On the game graphics - you would 'bake' a texture onto a low poly model, to make a 'bump map'. Have a look at some videos on it - its really interesting.
@@JonHimself I'll have a look at that then as I'm a modder for Assetto Corsa on PC. Thank you for this.
Hey man. Which software do you use to merge the different meshes?
Its the old version software from Revopoint.
@@JonHimself ah okay thanks man 🤝
any reason why you dont use fusion? thanks for sharing your knowledge
Blender is worth the investment in time in my opinion as a mesh editor and general all round amazing program. Its just the way I ended up going mainly because I used to do photo quality renders. I don't have the time to branch out in too many directions. Fusion is great, but for CAD I am a Solidworks guy.
I got a "huge" problem. After scanning and meshing i load the file into blender. When i want to measure than i got a wrong scalation. Its way to big. So my question, did you scale the file after scanning?
I did a quick video for that - ruclips.net/video/vn9vVU41uzE/видео.html
At 4:58 what program are you using?
Its the old version of the Revopoint software - Handy Studio.
Hello sir
I have question
For car 3d scan
Like chassis, axles, suspension, body, engine
Which revopoint is your choice?
Pop1, pop2 or mini
I'm going to buy 3d scanner (cheap one) for reverse engineering and build bolt on kits for suspension or engine swap kits so I'll be grateful for your advice
Scanning parts for chassis is about 4.5m for chassis and 95×90×60cm for engine (big old suv)
POP2 is probably best all around. Mini is great but for anything over the size of a football you get diminishing returns. POP2 will handle 90% of your work and for that reason its the one I would recommend.
What software package are you using to merge all of your STL files? I don't see that merge option in my Revopoint Revo Scan software?
Its the older version of Revoscans software (V3.1.02) - it seems to run better for me, the later version crashes here and there. I appreciate it can be confusing, I need to persevere with the new software.
@@JonHimself do you have a link where I can download that version? The newest version doesn't have that merge feature from what I can tell.
@@mjplays354 I dont I'm afraid. You could try and contact Revopoints support, however I am sure the latest version has a merge facility, the layout is just a bit different.
@@JonHimself hey Jon, thanks for the feedback. It looks like Revopoint removed this feature from Revo Scan and moved it to Revo Studio (two separate applications). Thanks for all the great content, it's been super helpful!
The resolution of scan does nothing with angular accuracy or planarity. It just takes less points, but accuracy of each point is the same regardless of resolution.
Shining Einstar vs revopoint 2 please...
I surprised you cant just grab a dozen averaged, or even just 3 points, and align that to a plane
Been waiting for over 3 months for revopiont pop 2 awful kickstarter campaign
Hope it arrives soon, it's worth the wait.