Re: [Emc-users] Laser measurement sensor

On Sunday, 20 March 2022 23:59:14 EDT Thaddeus Waldner wrote: > Update on the laser probe. > > Thanks to some input from this group and a discussion with Peter at > Mesa tech, I now have a laser distance measuring device reading to > within 0.001”. The range of my instrument is about 2” and I need

Re: [Emc-users] Laser measurement sensor

Update on the laser probe. Thanks to some input from this group and a discussion with Peter at Mesa tech, I now have a laser distance measuring device reading to within 0.001”. The range of my instrument is about 2” and I need only about 1/2”, so I can get the precision down to 1/4 of that. Not

Re: [Emc-users] Laser measurement sensor

On Tuesday, 8 March 2022 04:09:35 EST gene heskett wrote: > On Tuesday, 8 March 2022 02:16:38 EST jeanfrancois wrote: > > Hi, goog day > > > > Interesting, we areworking on the development of 3D printer, although > > it's using an uncalibrated magnetic sensor, I haven't yet tested its > > accuracy

Re: [Emc-users] Laser measurement sensor

On Tue, 8 Mar 2022 at 14:31, Thaddeus Waldner wrote: > Now I need to get this signal into LinuxCNC. I think the MESA THCAD device > would work, though it’s a bit overkill. Does MESA have other 1 or 2-channel > A-D options, perhaps without the high voltage protection? Many of the Mesa boards ha

Re: [Emc-users] Laser measurement sensor

Dunn Inc. 630 Henry Street  Dalton, Ohio 44618 Phone:  (330)828-2105ext. 2031 -Original Message- From: andy pugh Sent: Tuesday, March 08, 2022 6:14 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Laser measurement sensor [EXTERNAL EMAIL] Be sure links are safe. On Mon,

Re: [Emc-users] Laser measurement sensor

> I don't know if my reply got through. Look at Micro-Epsilon. It did get through, thank you. Micro-Epsilon appear to be a premiere brand in this industry. I am a bit puzzled by some of the replies saying that it is very difficult to achieve 0.001 with these sensors. Perhaps I failed to ment

Re: [Emc-users] Laser measurement sensor

On Mon, 7 Mar 2022 at 17:47, Thaddeus Waldner wrote: > Does anyone here know of some brands/ models to check out? I don't know if my reply got through. Look at micro-epsilon. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical gen

Re: [Emc-users] Laser measurement sensor

I'll need to conduct testing, thanks for the info. I may have been mistaken. Jean-François Le 08/03/2022 à 10:09, gene heskett a écrit : On Tuesday, 8 March 2022 02:16:38 EST jeanfrancois wrote: Hi, goog day Interesting, we areworking on the development of 3D printer, although it's using an u

Re: [Emc-users] Laser measurement sensor

On Tuesday, 8 March 2022 02:16:38 EST jeanfrancois wrote: > Hi, goog day > > Interesting, we areworking on the development of 3D printer, although > it's using an uncalibrated magnetic sensor, I haven't yet tested its > accuracy. It was said .1 is difficult to reach with this, and instead > some u

Re: [Emc-users] Laser measurement sensor

Hi, goog day Interesting, we areworking on the development of 3D printer, although it's using an uncalibrated magnetic sensor, I haven't yet tested its accuracy. It was said .1 is difficult to reach with this, and instead some use a contact probe for the Z homing purpose. Regards Jean-François

Re: [Emc-users] Laser measurement sensor

On Monday, 7 March 2022 16:08:59 EST Chris Albertson wrote: > On Mon, Mar 7, 2022 at 12:04 PM gene heskett wrote: > > Technically, we can do it but you'll need a couple of dump trucks > > full of gold to finance one neasurement. We can't yet buy a > > calibrated answer in 10 milliseconds for a $5

Re: [Emc-users] Laser measurement sensor

On Monday, 7 March 2022 15:51:58 EST jeanfrancois wrote: > Somewhere in the region of 5 US mils on a 50x50 mils region. > > I can try work out a solution if you have a budget shall I be > successful in the prototype. > > Regards, Thats pushing a $.50 micro switch according to some, but that is wh

Re: [Emc-users] Laser measurement sensor

On Monday, 7 March 2022 15:32:57 EST jeanfrancois wrote: > Are ultrasonic sensors doing the job in that tolerance ? > Some are. but there is a problem in the focusing the sound into a tight enough beam to only measure the target, is actually a physically large problem. So a real tight beam, simi

Re: [Emc-users] Laser measurement sensor

One way is a USB-I2C adapter wired to the ADC converter and reading through LinuxCNC HALUI. Although I haven't investigated further. Need to check the details. If you'd have the device doing the 0-10V / 4-20 mA output that'd work although there needs calibration due to resistor voltage bridge

Re: [Emc-users] Laser measurement sensor

The AR200-100 is the one recommended to me by their salesperson. > On Mar 7, 2022, at 3:06 PM, jeanfrancois wrote: > > Hi, > > This one uses trigonometry I think, nothing that much fancy or > technically difficult it appeare: > > https://www.acuitylaser.com/wp-content/uploads/product-downloa

Re: [Emc-users] Laser measurement sensor

This is what I meant about relative vs. absolute. Relative can be very good. Think of a relative sensor as if it were a dial indicator. That is how these work.Like a dial, they are good for many things, but useless for other things. The linearity spec tells you how the error changes with d

Re: [Emc-users] Laser measurement sensor

> On 7 Mar 2022, at 17:47, Thaddeus Waldner wrote: > > I’m looking for a laser distance sensor with about 1-3 thousandths resolution > and about a 5-10” working range. > I wouldn’t mind buying a used unit. I think that some replies are being overly pessimistic https://www.micro-epsilon.com/d

Re: [Emc-users] Laser measurement sensor

On Mon, Mar 7, 2022 at 12:04 PM gene heskett wrote: > > Technically, we can do it but you'll need a couple of dump trucks full of > gold to finance one neasurement. We can't yet buy a calibrated answer in > 10 milliseconds for a $500 bill. Someday? Maybe, but it may take a new > method to be inv

Re: [Emc-users] Laser measurement sensor

Hi, This one uses trigonometry I think, nothing that much fancy or technically difficult it appeare: https://www.acuitylaser.com/wp-content/uploads/product-downloads/ar200-data-sheet.pdf Regards Le 07/03

Re: [Emc-users] Laser measurement sensor

Here is a link about a laser tracker seminar about ADM (Absolute Distance Measurement) from a laser tracker company. https://www.digitalengineering247.com/article/high-speed-adm-distance-measurement-in-laser-tracking-applications/ They claim their time of flight protocol is nearly as accurate as

Re: [Emc-users] Laser measurement sensor

Somewhere in the region of 5 US mils on a 50x50 mils region. I can try work out a solution if you have a budget shall I be successful in the prototype. Regards, Jean-François Le 07/03/2022 à 21:37, Thaddeus Waldner a écrit : I need the small spot size of the measurement. I imagine US is n

Re: [Emc-users] Laser measurement sensor

more capable units from other vendors. -Original Message- From: Chris Albertson Sent: March 7, 2022 2:04 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Laser measurement sensor You can not get that kind of absolute precision with a time of light sensor. Even if you

Re: [Emc-users] Laser measurement sensor

пн, 7 бер. 2022 р. о 20:32 jeanfrancois пише: > Hi, > > Are there such lasers with this precision level ? > What kind of budget is that ? > See https://www.keyence.com/products/measure/laser-1d/lk-g3000/models/lk-g502/ long range or https://www.keyence.com/products/measure/laser-1d/lk-g3000/mode

Re: [Emc-users] Laser measurement sensor

I need the small spot size of the measurement. I imagine US is not that well defined. > On Mar 7, 2022, at 2:32 PM, jeanfrancois wrote: > > Are ultrasonic sensors doing the job in that tolerance ? > > Jean-François > > > Le 07/03/2022 à 21:01, gene heskett a écrit : >> On Monday, 7 March 202

Re: [Emc-users] Laser measurement sensor

Acuity sells what I need brand new for $1000. Keyence appears to be a much more common brand, given by the number of eBay items. These are not time-of-flight devices; they work instead by measuring the position of an angled laser spot on the target. I’m looking at the Keyence IA-065. The workin

Re: [Emc-users] Laser measurement sensor

Are ultrasonic sensors doing the job in that tolerance ? Jean-François Le 07/03/2022 à 21:01, gene heskett a écrit : On Monday, 7 March 2022 12:44:21 EST Thaddeus Waldner wrote: Hi, I’m looking for a laser distance sensor with about 1-3 thousandths resolution and about a 5-10” working range.

Re: [Emc-users] Laser measurement sensor

On Monday, 7 March 2022 12:44:21 EST Thaddeus Waldner wrote: > Hi, > > I’m looking for a laser distance sensor with about 1-3 thousandths > resolution and about a 5-10” working range. I wouldn’t mind buying a > used unit. 1. I didn't know they came in that high a resolution w/o needing a quorum

Re: [Emc-users] Laser measurement sensor

You can not get that kind of absolute precision with a time of light sensor. Even if you were willing to spend $100K. But you can measure relative distance MUCH finer than what you ask for. THis will tell you how foar the part moved. Maybe this is good enough? They measure relative distance

Re: [Emc-users] Laser measurement sensor

Hi, Are there such lasers with this precision level ? What kind of budget is that ? Regards Jean-François Le 07/03/2022 à 19:13, Andrew a écrit : пн, 7 бер. 2022 р. о 19:47 Thaddeus Waldner пише: Hi, I’m looking for a laser distance sensor with about 1-3 thousandths resolution and about a

Re: [Emc-users] Laser measurement sensor

пн, 7 бер. 2022 р. о 19:47 Thaddeus Waldner пише: > Hi, > > I’m looking for a laser distance sensor with about 1-3 thousandths > resolution and about a 5-10” working range. > I wouldn’t mind buying a used unit. > > Does anyone here know of some brands/ models to check out? > > Look for Keyence.

[Emc-users] Laser measurement sensor

Hi, I’m looking for a laser distance sensor with about 1-3 thousandths resolution and about a 5-10” working range. I wouldn’t mind buying a used unit. Does anyone here know of some brands/ models to check out? Google has pointed me at some Acuity products but I wondered if there were other op