Remember, the more prussian blue you put, the flatter it gets ;)
@robertsteinwandel66582 жыл бұрын
My thoughts exactly lol
@zJericho101z2 жыл бұрын
Awesome work! im sure all the effort will be worth it in the end!
@robertsteinwandel66582 жыл бұрын
Thank you! I hope so!
@dhoodlum4129 Жыл бұрын
I actually tried using a Dremel tool with aluminum oxide to scrape in my first straight edge using a A grade surface plate. Unfortunately no matter how light pressure I used against durabar, I was scraping well over 5 tenths each Dremel contact. In the end scraping with carbide was way to go to get under 1 tenth over 12 inches. Excited to see if all those contact points will be worth it. EDIT in the scraping carbide without Dremel
@robertsteinwandel6658 Жыл бұрын
Really interesting! Im not going for something nearly that precise, if I could get within about 1-2thou over the full length I would consider that a huge success. What a great project though, I’ve almost never even heard of a straightedge that flat!
@carloszacarias45262 жыл бұрын
I´m doing something similar, I´m scrapping a lathe with hardened ways. I have never scrapped anything, so I was afraid to do it. All the information about how to deal with hardened ways is in russian. The russians, and other people around there (like ucrainians and bielorrusians) use the same approach: an angle grinder. May be this is the first english spoken channel using the same technique. Currently, after several tests and months of practice I could flatten a lathe way to the level of .003 mm in 1 meter, the technique at the beginning was to use an angle grinder to perform the rough cut or blue mounted stone first, then pink stone to reach prefinish, I finish with a dremel wiht a cutting disk. The edge of the cutting disk should have a radius, I did it cutting a hard material like stone, this rounds the edge of the cutting disk. Nice project, I would have save a lot of time if i had seen this project.
@robertsteinwandel66582 жыл бұрын
Thank you so much for the kind words. That process sounds extremely interesting! I will be returning to do a final flattening pass once the lathe is operating to get it completely dialed in and I’ll definitely be remembering to use a dremel cutting wheel for fine adjusting! Thank you!
@tugrulcagr7640 Жыл бұрын
Hi Carlos there are two videos I've watched. One German with a Proxon grinding stone wheel, other one American with an angle die grinder. I hope these help German: migru59 "Tuschieren mit Schleifer / An alternative to hand scraping" and American: cgprecision "Hand grinding hardened ways"
@TheCalvinSkinner Жыл бұрын
I bet that grinder is taking off tens of thousands with the lightest touch
@robertsteinwandel6658 Жыл бұрын
Actually no, Interestingly enough! I thought the same thing, but I did tests with a micrometer and a piece of ground steel of known thickness, and one complete pass removed approximately .0003in from the whole surface. Im sure a grinding wheel would remove a ton more though which is why you need to use a cutting wherl
@franklingomez5311 Жыл бұрын
You kind of sound like augustus st. cloud from the venture bro's. Great video.
@neffk Жыл бұрын
I'm late to the party but wouldn't it make sense to work on both rails at the same time? Anyway, I admire the hustle. Can't wait to see how this turns out
@robertsteinwandel6658 Жыл бұрын
Haha it would have, I wasn’t really sure what I was going to do at first so I started with just the one rail. Would’ve been better to do both together though for sure. Thanks!
@ShopperPlug Жыл бұрын
How did you build the block? Is it one of your videos with the expoy granite build process? This is great for explaining how you are building everything. Would also like to build precision CNC, particular used for making PCBs. Do you know any sources or books which delves into details on how to precisely build everything for making a precision based CNC/gantry/linear rails used for x/y/z axis? What kind of surface finish grade of that granite reference surface plate you're using?
@robertsteinwandel6658 Жыл бұрын
That’s great! Sounds like a really cool project. I made a video on epoxy granite that would answer hopefully most of the basic questions, but there’s a ton of info on cnczone.com in a thread called something like “main epoxy granite” which is many thousands of posts long, they did some good research and it takes a little bit but they got very solid info in the end. That is probably the biggest collection of info I ever found on epoxy granite, and they do some fantastic work. If you’re interested I’d very much advise at least skimming through for the main findings they came to. I think there’s a summary page of what they learned Not to be rude necessarily but there’s a user peteeng very late in the thread who joins the discussion and gave a lot of information which does not seem to be well researched. Generally his info did not agree with anyone else’s and he couldn’t provide much supporting evidence, so that’s the only info there Id really shy away from.
@janlolwitz9512 жыл бұрын
Does that really work with a measuring plate smaller than your ways?
@robertsteinwandel66582 жыл бұрын
It’s much more difficult and much more time consuming but yeah to a point it can be done, I flattened it to about .001in and that was about as accurate as I could get over the full length
@nickp47932 жыл бұрын
Nice work. I'm designing an epoxy granite bench top sized mill (still in CAD only). I have a question: You said the rails were out about 30 thou. Was the raw material out that much before pouring the epoxy? Or, did the epoxy pour/cure cause the metal to twist? Thanks.
@robertsteinwandel66582 жыл бұрын
To be totally honest Im not sure I remember exactly what that 30 thou was in reference to, do you remember when in the video I said that? (Sorry to ask for a timestamp for my own video lol) Those 2 steel inserts are hot rolled steel and quite warped. I tried to bolt them to the surface of my mold and that helped a bit, but they were still further out of plane than Id have liked. I would strongly recommend going with cold rolled and using 1 solid piece instead of 2 separate ones if possible. At least thats what Id do if I could go back, my friend is making an eg machine at the same time and used cold rolled inserts, his inserts started flat within about 8 thou Id love to see a video even just showing the cad file though, sounds like a great project!
@nickp47932 жыл бұрын
@@robertsteinwandel6658 Thanks for the response, makes sense with the hot rolled and being in two pieces. Here is the first of my video series. I'm a few videos in now. I'm a beginner at the videos too. Sometimes the videos are harder than the design, ha ha. kzbin.info/www/bejne/sIiaeKiojditetk
@robertsteinwandel66582 жыл бұрын
Nick P Im halfway through episode 2 now, great videos! You’ve got a sub here for sure hahaha
@nickp47932 жыл бұрын
@@robertsteinwandel6658 Ha ha, as do you. I actually was just watching 1 and 2 myself after I linked them. I forgot myself what I said on them. ha ha.
@robertsteinwandel66582 жыл бұрын
Nick P hahaha thank you!
@mackk1232 жыл бұрын
nice
@robertsteinwandel66582 жыл бұрын
Thanks
@ricaurandt67132 жыл бұрын
Well, part 2 in what I'm sure is to be a long road through audio Hell but you're already gettin better with your public speakin so I'm sure I can endure through to the finish. Now I know ya probably already been told before n it was probably just as of much use to hear it long after ya already completed the job but why in Sam Hell didnt ya just take that whole bed assembly down to your local automotive machine shop n have em surface those bed plates for ya? A hunnert bucks n maybe a day to get that dialed in within +/- .001 across both plates and down the full length a both plates. Oh well, who in Hell am I to Monday mornin quarterback your project? I'm just a grumpy ol retired marine n diesel engineer who already seen tonite's episode a Matlock so I'm bored n sober! Gotta fix that, where's my drink?
@robertsteinwandel66582 жыл бұрын
Lol I appreciate the comments. The audio gets a little better although admittedly not much, the first video was just an explanation for another engineer, I never realized people would go back to watch it later hahaha. It was only the next videos I started really making with people in mind at all Taking it to a machine shop would have been way easier for sure. Partly I did it myself because it’s basically free, but also it was pretty interesting to try to make a precision flat surface with an angle grinder in a garage haha Glad you’re at least able to get through the vids hahaha
@rameezsheikh7576 Жыл бұрын
Ahm 😂 in every 7-10 second
@robertsteinwandel6658 Жыл бұрын
Newer vids are better with that lol, pretty sure this was before I had access to basically any editing Still not amazing but hey it’s getting there
@RotarySMP2 жыл бұрын
Nice progress. You might want to consider changing the title to "scraping ways with the angle grinder", or something like that, as that technique probably interests a number of people. Have you found the scan of Conelly's "Machine tool reconditioning" the scraping bible? tuxdoc.com/download/edward-f-connelly-machine-tool-reconditioning-anbookfiorg_pdf He has some cautions and advice for touching off a long way with a short surface plate, to avoid errors. I feel for your lumbar. You are young, but bending and grinding like must be a bear. I try to put the item at comfortable height before starting.
@robertsteinwandel66582 жыл бұрын
Thank you! Honestly thats a great idea, I haven’t seen that many videos about it. I still need a tripod but the video quality is hopefully considerably higher than before with editing and all now lol. Thats great!! I had heard of it but never got a chance to read it, Id heard it’s incredibly useful, thank you! Yeah bending over for that plate got brutal after a while. The casting is about 300 pounds though, I could lift it onto those buckets (with difficulty) but couldn’t get it too much higher without some type of setup to lift with some mechanical advantage. I might use a jack or something to lift it a little higher so its better to work on haha
@RotarySMP2 жыл бұрын
@@robertsteinwandel6658 Audio is more important than video. People will accept wobbly video more than inconsistant, or bad audio. Yours is not too bad, but a 15 buck lav mic from Amazon plugged into your phone will make it more consistent (although the cable is a PITA). I used a cheap lav mic into a cheap sony Dictaphone for the first year, synching in post. Also a bit of a pain.
@bobweiram63212 жыл бұрын
Hmmm. I wonder if it's more accurate to reference the ways using an equally long and "reasonably flat" surface, say a melamine board, just to identify the high spots for the initial scraping. Once "reasonably flat" follow it up with a more precise scraping of the sections using the granite block. My only concern about using the block alone is that it may be straddling deep and wide bows and crowns leading to a false reading, as RotarySMP cautioned.
@fairstnaimelastenaime1346 Жыл бұрын
@@RotarySMP I think your commenting helped the algorithm show me his channel, only 5 months late instead of 5 years late for Tabletop Machine Shop (canada) and his cool suitcase slantbed lathe ;o)