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Alan Hollerbach
Registrace 10. 02. 2012
3d Scanning and printing a Knife Holder
Using a 3d Scanner from Hp to make a 3d printed holder for cutting Kaizen Foam Case. From setup to scanning to finished product. Using an hp 3d scanner and software. Printing with Talman 910 on a Prusa mk2s.
zhlédnutí: 227
Video
Return to Youtube
zhlédnutí 201Před 4 lety
Just a little preview of new videos im working on, New mill project, 3d Scanning, Machine scraping and more. Going to show alot more in the shop.
Shop Update #2
zhlédnutí 418Před 5 lety
Shop update showing mill upgrades, band saw, di-profiler for blade mirroring, future mill projects, knife parts, and new air compressor. Finally finishing all parts for my custom knives including handles, blades, back-spacer's , locks, and pivots.
Shop update #1 Knife handles and Tooling
zhlédnutí 455Před 6 lety
Just a quick update on the Cnc milling machine and creating knife handles, tooling and coolant upgrades Ive done.
Cnc machine tool calibration using a laser interferometer and renishaw ballbar with acorn control
zhlédnutí 7KPřed 6 lety
Just a quick video showing the tools i use to set up my mill, Digital 2 axis lever, Hp Laser Interferometer and Ballbar to setup my mill using the centroid cnc acorn board and software.
Ballscrew Comp with Centroid Cnc Acorn Board
zhlédnutí 9KPřed 6 lety
Setting up ballscrew compensation with the centroid cnc acorn control board and cnc12 software
Xtreme Xperience at NOLA driving Ferrari 458 Italia
zhlédnutí 335Před 6 lety
Had a blast driving the Ferrari 458 Italia at Nola raceway.
Wiring Clearpath Servo to Acorn Control Board
zhlédnutí 11KPřed 6 lety
Just a short video showing how to wire and setup the acorn control board with the Clearpath servos.
Mill Rpi setup using Centroid Cnc Acorn Board
zhlédnutí 4,9KPřed 6 lety
Using Centroid cnc software and control board to setup the rpi of the ballscrews for milling.
Probe tip setup
zhlédnutí 1,1KPřed 6 lety
Using Centroid cnc software and control board to setup probing tip size with renishaw probe.
Setting up backlash compensation with Centroid Cnc Acorn Board
zhlédnutí 6KPřed 6 lety
Using Centroid Cnc Acorn board and software to setup your backlash compensation.
Centroid Mill Setup Video
zhlédnutí 4KPřed 6 lety
My mill setup with the Centroid Cnc Acorn control board and software.
Csr Probing with Centroid Cnc Acorn Control Board
zhlédnutí 4,9KPřed 6 lety
Setting up your milling vice with Centroid Cnc Acorn board and probe for CSR without tramming the vice square.
When taking additional passes and fine tuning do I need to go back into motor and turn the screw comp back off each time I am taking a new set of measurements? I have been turning it off when I take my .5" readings, enter new data, and turn back on. Am I just chasing my tail doing that way?
@mt6865 I have not done a comp in a long time but if I remember correctly, I would do the first comp off and tge fine tuning with the comp on and small adjusting the numbers plus or minus until it was dialed in, if you shut it off each time you can't see the difference your making.
@@AMHKnives Thanks, that is exactly what I ended up doing. Ran it once, turned on the comp and started adjusting the corrections little by little. Was able to get the first axis dialed into within .00015" across the 18" of travel. Should have done this 2 years ago.
Thanks for the explanation brother, for some reason its hard to find this kinda info about them.. Itd be great to see more about setting it up, but this alone was great, much appreciated!
If you have two drives hardware tied to one axis can this still be done?
Very interesting stuff as hobbyist
Bonjour s'agit t'il d'un réglage par zone ou des valeurs n'importe où sur le déplacement
Thank you so much for explaining the tools! Very helpful for my granite CNC build :)
I am trying this and I do have it turned on for the axis and I enter the new values for the first 1/2" and re run and there is no change. What's Up
Did you have to use 100oh + resistors for the clearpath signal wires? I see that on the acorn's schematic
I did not, when I wired up this system it was still in beta form and did not have a schematic with resistors.
I really need to try this. Thanks for the video. Good stuff
is the backlash at some point divided by the distance traveled ?? ive seen this done a few ways
I did not but I guess you could to average it out.
Alan. Nice todo meet you. I have one question about accorn CNC. I really appreciate you can give me the answer. 1. What are the advantages AND disadvantages of accorn CNC?, I want make a retrofit to my CNC milling AND im thinking in accorn centroid, but to be honest i want to know youre opinión.
Do I turn off backlash comp before I do this ?
Yes, do all the calcs before turning on comp then test the movements afterwards with the comp on.
@@AMHKnives Thanks for the reply
How do I get the Y/N selectable? I’m trying to turn on screwcomp but it’s not allowing me to turn it to yes??
Nice informative video Alan. I'm having trouble with the incremental G-code command. Acorn says the G91X-.5 line is a 502 Invalid G-Code and won't continue running it.
Are you running that with a space between the G91 and x-.5?
@@AMHKnives I've tried both and to no avail. Same error code.
@@adrewfis925 sorry bud, I don't know the answer then, I would post on the centroid acorn forum, they should be able to help you there.
Do you have a link for the spindle you purchased ?
I bought it from automation technology years ago, its a 2.2kw watercooled spindle.
I have the ability to add a DRO in my quill (I have a anilam z quill ball screw setup) can I use the DRO to help the controller know exactly where the quill is? I’m having issues getting my quill accurate.
You could use the dro to map the ballscrews movements but as far as hooking it up to the acorn no. It does not have any inputs for scales, centroids bigger and way more expensive controllers you can add feedback to.
Can you use a cheap corner plate type sensor to get x y and z zero? (On the acorn)
I believe you can, but I have never done it myself.
Do you have a video on how to input your ballscrews?
I'm sorry I do not, I believe Marty has a video or two on that subject, if not the centroid forum can help you.
Looking forward to seeing more videos, I think your channel could take off if you keep the content up!
Hello. , before buying acorn cnc I want to know if the interface has multiple languages .... French for me. thank you
I'm im not sure bud. You would have to ask centroid on there forum.
I used that same developer with my Creaform and scanning steel does at work. Still hated cleaning that stuff off. Also cutting foam is awesome with a laser.
Awesome. Doing this tomorrow on my X2.
I know this is an old video but i'd really love to see an in-depth video of the interferometer setup :)
0:51 6400 step rev. 5mm lead 6400/5mm =1280 step mm. its so easy its EXACT number. motor turn 0.2/mm *25.4 = 5.08 rev/inc. math say its EXACT 5.08. use it. its not 5.07???????.your hig priced measure suck.if not happy USE mm when you have mm ballskew it will EXACT and mm is more acurate based on 0.001mm and 0.0001inch display. 0.001mm equal 0.0000393inch. so using MM you have more acurate display. you cant even see last digit move.when you move 0.0001inch its 0.00254mm. get it and 1 step in your setup is 0.00078125mm = 0.00003075inch. you need 4 step to see last digit change. i need 2 step. get it yet xD even you will see change in 2 step,but its allready rounded up
Dude, if its so easy make your own video about it. The cheap ball screws i had in the machine needed to be comp regardless, I use inch display cause thats what I work in. But enjoy shitting on my videos by all means if it makes you feel better.
Hi so I’m in the process of converting my g0704 to cnc already have my acorn controller (your video sold me on it) and all of the parts, linear rails and I’ve manually machined all the mounts etc. didn’t plan on getting so hooked on the build or I would have built the whole thing from scratch. Anyways to my question I’m thinking about pulling the trigger on a 1.8kw ac servo for the spindle motor, changing to AC bearings and change it to pulley/belt drive but I’m considering just going with a water cooled spindle instead dropping a ton of weight and issues and gaining a lot of rpm, is that something you would recommend? This is only a hobby machine to build my own personal project parts but I want something that will handle steel and capable of lower rpms also, how do you like yours and would you do the same if doing it over?
Thank you, it really depends on how hard you plan on running your mill, heavy steel cutting definitely go spindle with step down pulleys, mostly aluminum and softer materials i would do the higher rpm water cooled. Now that being said I run the pants off my 3 hp water cooled spindle cutting everything from aluminum to titanium with np, need a ton of speed in your axis so you can take thinner chips in those materials. Also flood coolant is a must with the harder materials in my opinion.
Thanks for the great video. Any particular reason you use 10 jog steps in this compensation?
Thank you. I may have misspoke in the video, i know that my laser compensation tables are a measurement taken every 1/2 of an inch.
Hmm, you say in the video you hooked HLFB red wire (negative) to +24V on a rail and then connected motors in series ending with green wire from HLFB+ going into In5 on Acorn.... now that doesn't sound right, since In5 will also have +24V when opened. I have connected mine with red wire hooked to the COM and it works
I would not go by my wiring on that board, the video is a few years old and it was a first rev/ beta board. I recommend using a new wiring diagram from centroid for connecting to the acorn.
@@AMHKnives trust me, it's worse, otherwise i wouldn't be trying to figure it out by videos
Johnson in my hand :snicker:
So does it work?
Yes, it worked quite well, i screwed up in editing the video and deleted the footage, ill have to do a follow up on it.
Great seeing you back!
Thank you
I look forward to seeing that new mill. That teaser on IG was cool.
Thank you
Hello Alan I need help. I dont have precision. I have cnc router with dmm servos. I followed your video of ballscrew mapping. I do the complete travel I return to make the home every time, I make a step as the software asks me to, but when I return to zero and verify again the travel loses the precision again. I don't know what to do. It seems I lost buying acorn cnc. Could you help me please. Hector.
Two quick checks, on the screen that has your motor steps and backlash make sure the ballscrew comp column has y in it turning on the comp for that axis, also after you do the comp save and restart the software, then verify that your comp table is there, you can do it in the software or in c: of your computer. If these dont work ill shoot you my email and we can try a few others.
@@AMHKnives I did the process again but the result is the same the precision is lost. be happy if lost by .0015 or.002 inc is nice. but it is lost by .005, .006 up to .008 inc that does not work. I have experience in diy cnc previously I used path piloth software it worked very well but when I made the change to servos the path piloth did not want to work with the dmm servos. I made the change with mach3 but almost always lost communication with the computer. I made the change to centroid looking for improvement and I find this problem very bad. Could you help me with a more detailed video of how you did the process
@@deborahcarattini765 a few questions, have you made sure your pulse per rev is dead on for each screw and that your backlash is completely 0 or compensated to 0. Also how are you measuring your movments? Have you checked to make sure all your compensation numbers are in the software and a at least .5" for each measurement. You have to be sure 100% that you have no mechanical issues before you even try to comp. Now when i did my final compensation on my machine u used a laser interferometer for the movement, i talked about it in another video. If you have more questions its easyer to message me at amhknives at gmail dot com
Very interesting vid! You've got me looking at the MCV-500 now. I didn't understand your comment yesterday about needing the laser, but I do now since this vid and the comments caused me to go do a bit of research on the laser. :) Now to find one.
Hopefully, you're just busy. Any updates? I was specifically looking for more info on the reinshaw LP2 setup. I see you've changed that now. I saw an IG post from Dec? I would have msg'd you via FB or IG.....still might. :)
I'm a sicko, the idea of tweaking a machine into perfect squarenrss is therapeutic. I've looked into making a tramming tool with two wireless indicators and write a little android app. Very simple to do but finding the time and waiting for access to machine time is the killer. Another one is wireless level, haven't figure that out yet but wouldn't be too hard. Final idea being a bunch of tools to level machines all accessible from your phone app so you don't have to constantly be climbing up and down up and down, using mirrors to see dials etc....
Excellent! Thank you for taking the time to share this info!
Thanks, glad to help.
gday great video could I get more info on the way you wired up the Renishaw m8 interface to the acorn? my email is terenceganly@hotmail.com thanks.....terry
Hey Alan, great videos (and shop), thanks! I know this is old, but quick question if you don't mind as I am beginning to shop for parts for a build of my own. I notice the 50mm (?) face mill in your Chinese spindle - can you run that combo and on what materials? Is the spindle just one of the generic 24k RPM ones or did you get a lower RPM version? Also, i think you have a Huanyang VFD, right? Still holding up fine?
Its just a cheap china 24k spindle, the vfd is still holding up well, i have face milled a few times with aluminum but dont to it often.
@@AMHKnives Thanks so much, that's def good enough for me:). I think you are the first guy on CZcams I have seen running that face mill in the "small" spindles.
What did your spindle cost?
The spindle on the machine is a cheap china spindle i bought for a couple of hundred bucks, the fischer precision hsk40e spindle i got off ebay for 2 grand.
Doesnt clearpath run their own controllers?
Nope, the 2 black boxes under the acorn board are just powersupplys for the clearpaths. They need a controller like the acorn to tell them step and direction.
Interesting, appreciate it! 👍
Instrumentation overkill! Love it.
CLEAN your damn shelves!
If i clean them i will never be able to find anything lol
Hey, any idea why the Acorn step, dir and enable are wired to NEGATIVE inputs on the Clearpath ? It just feels weird doing this without an explanation. The Acorn spec sheet does specify that those outputs are positive, where am I wrong ?
If you look at rev 4 all of your positive enable. Step and direction positive connections are direct to your 24vdc from the transformer and your negitives are enable step and direction through the board, i believe it is done like that for easyer power tranfer through the board. Basically its easyer to control with smaller components and less power directly through the board.
@@AMHKnives Right, just wired as instructed on the rev 4 drawings. Good that they provide them in such an accurate manner depending on which equipment you are using. Thanks for the answer.
1 μm! Sweet! Would you recall the price and do they require any signal translation to connect to CNC 12 board, or it’s just straight NC/NO switch. May I ask which laser interferometer you incorporated in your design? Thank you very much! Best!
When i bought them they were $90 each and they connect directlyto the acorn board. I was running an older hp 5517d laser with all the mirrors and control board from sams laser faq but i have just upgraded to an optodyne laser.
Thank you Alan! Much appreciated. Would love to see the knives you making :) P.S. Which Metrol tool seater did you use? Best of luck!
@@arthursargsian thank you, im actually not running a metrol tool setter, i have a renishw ots tool setter and omp400 probe with a renishaw optical eye controling both.
Hi Alan, Thanks for sharing the video on your progress. Can you elaborate on Metrol tool seater and short range sensor that you used in your project, please? Thank you.
I use the metrol PTP5M1CB for homing switches. And in the video i used a linear scale from mitutoyo. Since the video i have upgraded to a laser interferometer for the mapping.
Am new to cnc,still learning,your video was very helpful, how do you make the g code for the acorn,have never made a simple non part g code. To run on my acorn
You could use the intercom software in cnc 12 to try some simple moves or just some simple x+ or - moves to run the axis. To make all my parts i use fusion 360 for my cad cam and g code for thd acorn.
Alan, first of all amazing information and effort! No non-sense, straight to the facts is greatly appreciated. However, I was very disappointed to hear you say your accuracy is only within .002" to .003" using a laserIF to setup. I am accuracy obsessed and have been looking for a video-verified small CNC mill with accuracy of .0001" that is all totalled under $30,000. So far it does not exist. Where do you think your inaccuracies in your setup are? Exactly what model numbers of equipment would it take to make repeatable cuts to .0001" accuracy with your setup (or any desktop mill)?
Thanks, .002" of an inch over and 8" circle on a ballbar test is quite good for a home made mill, most haas run .0005" new and .001" after a year or so from the research ive done. My mill is a fully custom x2 with every axis changed running on linear rails. Im hoping to get it under .001" this year with nsk ballscrews and new rails being hand scraped in flat.
@@AMHKnives , thanks for the reply. With the effort you put in I have no doubt you will get there. I did not realize you were testing on a 8" circle, so I get what you are saying. Have you seen the specs on the Skyfirecnc SVM-1? Eon Machining verified it cuts within .0003", but at 2" linear. Keep up the good work.
@@AMHKnives Have you created ballscrew correction tables in the controller, and did those help much, or was it mostly physical squaring/trueing that got the results?
@@samroesch always trueing up a system will be the biggest aid to getting a machine accurate. I did make correction tables for all the axis on the mill, it definitely made a difference in the machines overall accuracy but was a ton of work.
@@AMHKnives Do correction tables only apply longitudinally along an axis, or can it correct for X error during travel along Y, if your rails aren’t perfectly straight for example? I would have thought it’s possible to correct all errors in software if you have a reference like the laser to go off, but it sounds like that’s not the case?
Hi Sir I just got set up Centroid Arcon. But I do not know how to run a program. can you help please. I have the pipe chuck in 4th Axis. And Need to drill hole on different angle and distance with X travel . Thanks you very much for your help. Tony
Tony, are you using a cam software for your g code or trying to use the internal software for your cutting? If you want to shoot me an email insted of going though CZcams, amhknives at gmail.com
I like the lathe.... I have the 6" change gear from the 1950s...
Nice, got to love the old machines. Thanks bud.
Did you calibrate your inches/rev and backlash first? Does this not also affect the screw compensation or do the screw compensation table override these values? Kind of seem redundant in spots... Great Videos. Thanks!
You do revs per inch first and backlash. Ballscrew comp is only for the error in the screw itself. And it uses the table you make to do small changes in the pulses to take out the error.
@@AMHKnives Thank you. Calibration is on my list of todo for the evening. I'll follow those steps in order. Trying to get my "circles" to be a bit more circular.