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Is it ok to use the LM2937ET-3.3 to build a stable 3.3V regulated power supply?

LoveChip — Tue, 14 Jan 2025 06:01:40 GMT

I am working on a DIY project and need to design and build a stable 3.3V regulated power supply for my microcontroller.

I looked up the LM2937ET-3.3 and found that it is a low dropout regulator designed for situations where power consumption is a concern and efficiency needs to be optimized. Unlike standard regulators, LDO regulators like the LM2937ET-3.3 can operate with a small voltage difference between the input and output, which is ideal for projects where the input voltage is slightly higher than the desired output voltage, such as small devices such as sensors, microcontrollers, and communication modules.

Various Used SANDVIK SILENT TOOLS Capto C6 Boring Bars

Scrapdealer — Tue, 14 Jan 2025 02:07:47 GMT

FREE SHIPPING BY UPS FOR ALL BARS TO CONTINENTAL US AND CANADA.

POSTED AS MANY PICTURES AS THE BOARD ALLOWED. PLEASE VIEW THE EBAY LINKS FOR FULL DETAIL AND IMAGES.

ALL BORING BARS ARE CAPTO C6.

ALL BARS CUT AND FUNCTION JUST LIKE A NEW.

NEVER CRASHED. NEVER RUBBED. NEVER DROPPED. ONLY HAVE TYPICAL WEAR FROM NORMAL USE AND STORAGE.

SANDVIK SILENT TOOLS C6-570-4C 50 150-40R BORING BAR
$670 https://www.ebay.com/itm/396095308653

SANDVIK SILENT TOOLS C6-570-3C 50 247-40R BORING BAR
$670 https://www.ebay.com/itm/396095068731

SANDVIK SILENT TOOLS C6-570-3C 40 198 BORING BAR
$640 https://www.ebay.com/itm/396095086126

TWO SANDVIK SILENT TOOLS C6-570-4C 40 120 BORING BARS
$580 https://www.ebay.com/itm/395767700458

SANDVIK SILENT TOOLS C6-570-3C 32 288 BORING BAR
$570 https://www.ebay.com/itm/396095243740

SANDVIK SILENT TOOLS C6-570-3C 32 159 BORING BAR
$570 https://www.ebay.com/itm/396095158602

SANDVIK SILENT TOOLS C6-570-3C 50 247-40R BORING BAR
$270 https://www.ebay.com/itm/396095267441

DIRECT TRANSACTIONS CAN ALSO BE CARRIED OUT USING PAYPAL BY PAYPAL INVOICING. YOU WILL HAVE PAYPAL'S BUYER PROTECTION WHICH IS THE SAME AS EBAY'S.

WILL SHIP THE VERY NEXT DAY OF PAYMENT.

NO RETURNS AND NO REFUNDS IF YOU CHOOSE NOT TO RECEIVE THE ITEM DESPITE UPS ATTEMPTS TO DELIVER.

Methods for testing the hardness of steel pipes with hardness testers:

JingMi — Tue, 14 Jan 2025 02:03:14 GMT

During the production and use of steel pipes, the determination of their hardness is very important. Rockwell, Brinell, Vickers and other hardness testers measure the hardness of steel pipes. The main measurement methods include the following:
1. Rockwell hardness measurement method
The Rockwell hardness test is currently a widely used method, among which HRC is second only to Brinell hardness HB in steel pipe standards. It measures the depth of the indentation and can be used to measure metal materials from extremely soft to extremely hard, which is simpler than the Brinell method.
2. Brinell hardness measurement method
The Brinell hardness measurement method is also widely used in the industrial field. It is widely used in seamless steel pipe standards. The hardness of the material is often expressed by the indentation diameter, which is intuitive and convenient, but it is not applicable to harder or thinner steel pipes.
3. Vickers hardness measurement method
The Vickers hardness test method is also a widely used hardness test method. It has the main advantages of the Brinell and Rockwell methods, and overcomes their basic disadvantages. It is suitable for hardness testing of various materials, but not for small diameter test samples. It is not as simple as the Rockwell method and is rarely used in steel pipe standards.
The hardness of a steel pipe refers to the material's ability to resist deformation under external forces. The hardness is one of the important indicators of a material's performance. I hope this will be helpful to you when choosing a hardness tester. If you have any questions, please leave me a message. I will be happy to help you.

Fanuc 21i-T problem

Mhook — Mon, 13 Jan 2025 20:00:05 GMT

hi
I have 2 problems:
My Fanuc 21i-t daewoo lathe does not show the tool number in jog mode, and the second is that my Q-setter is not active in the negative z and negative x directions! Is there a specific parameter to activate it?
thx

Ts27r macro

Mhook — Mon, 13 Jan 2025 18:49:34 GMT

hi
does anyone have a macro file for ts27r?
for tool length setter?
thx

Connecting to FANUC ?i-B ?i-B (62XX) series servos to LinuxCNC or similar system?

liutas4x4 — Mon, 13 Jan 2025 13:47:27 GMT

Hi,

I am searching for hardware solution for connecting most modern FANUC servos like 0i-F to PC-based NC.
It should be PCI-based card.

Hope someone will show me a way.

/eugenius

#?i-B, #aplha i B, #alfa i B, #?i-B, #beta i B, #betha i B, #FANUC 62XX

Need Help! UPG-2 Drill Cycle Lathe Coordinate Issue

Darkonan123 — Mon, 13 Jan 2025 03:29:23 GMT

I'm currently working on a post for a LinuxCNC lathe and have it mostly completed. I am currently running into an issue with the drill cycle however. For some reason, no matter how I change it, the "First System Drill" step is always putting X and Z on the same line, even though it shouldn't be doing that. They should be on separate lines, with X coming first. The other problem I have is that the subsequent System Drills do not specify an X at all even though I've tried forcing it to do so. Any help would be great. I have attached pictures of the issue and the gcode file.

(1/4 X 90DEG CBT SPOT DRILL)
T12 M06 G43
G90
G97 S1207 M03
G98
Every Move
Rapid Move
G00 Z.1
Every Move
System Drill
G01 X0 Z-.075 F3.98 <--------------- This line is the issue.

Attached Images

1.PNG‎ (24.2 KB)
2.PNG‎ (21.6 KB)
3.PNG‎ (21.5 KB)

Attached Files

5A Toolholdertt.txt‎ (7.7 KB)

Daewoo Puma 6s parameter help

MarkATh — Mon, 13 Jan 2025 00:27:20 GMT

My battery went down on my Daewoo Puma 6s and I got them all loaded back, but I’m getting a 417 and 427 servo alarm. The parameters I have with the machine had the 8000 parameters listed as a different machine. I put them in hoping it was an error from the previous owner but no luck! Any help would be greatly appreciated!

Supermax rebel 1 tool change not completing

Cris_co — Sun, 12 Jan 2025 23:33:33 GMT

I just got a mid 90s Supermax with Fanuc 0m controller. It was doing tool changes in a program and mdi, but now it is stopping after the carousel comes into the spindle to grab the tool. I checked the limit switch and it ohms out. Its not giving an alarm but don’t know how long it would take to throw.

3d scanner with cad-cam

blowncoupe — Sun, 12 Jan 2025 21:10:43 GMT

Newbie to the 3d market. I’m looking for the best 3d scanner to use with my Bobcad/cam software. I have a flash forge and can’t find the proper slicer to make work. What is the best medium priced scanner and slicer combo that people have found to work? I just want to be able to draw up my own parts and print them. I’ve spent weeks trying different slicers for the flash forge and nothing works . With just starting over I’m sure there is a combination of printer and slicer to be able to use bobcad to achieve this thanks for your feedback

Blowncoupe

Jammer's EVO 2.1 build

Jammer369 — Sun, 12 Jan 2025 17:51:19 GMT

In what has to be ranked right up there with taking the longest amount of time to actually start the build, I am finally getting started. I first joined Joe's CNC forum back in 2012 wanting to build the Joe's Evolution 1 design. I actually ordered Joe's EVO 1 plate kit in 2016 along with hardened V-rails, aluminum and some other bits and pieces. As with happens, life got busy.

Fast forward and I now have a detached 600sq ft shop and have decided to get this thing done although I also made the decision that I am switching designs to Joe's EVO 2.1 with linear rails. Here is what I am so far:

Steel 1/8" 2"x2" for welded base (on hand)
8020 Extrusions, 2040 for Y axis, 3060 for X (on hand)
Joe's EVO 2.1 plate kit ordered (should arrive ~late Feb)
Joe's Z-S,lide (received in Dec '24)
Nema 23 570oz ordered (Z-slide)
Nema 34 740oz ordered (X & Y)
Hiwin HGW20CCZA ordered with KK dust kits

AvidCNC Pro Rack and Pinion (will order in Mar)

I will make a final decision on Electronics when I make a little more progress on the structure but right now am planning on running UCCNC on a UC300-UB1 and building my own controller box.

I will use this as my build thread as I start making some progress.

BTW, a little about myself. Retired USAF pilot now working at a Christian non-profit. I enjoy building just about anything and love tools.

Floppy drive A To USB GoTEK Emulator

duy200 — Sun, 12 Jan 2025 17:25:40 GMT

HELLO, ALL BROTHER AND MASTER MACHINESTS PLEASE HELP ME WITH .
I'M JUST NEW IN HERE 2ND DAY I NEED TO LEARNING MORE AS I NEED I.M APPRECITTA ALL PERSON HELP ME OKAY AND THANKS.
HERE MY PROBLEM .. I HAS A VF4 HASS MILL MACHINE ITS OLD WITH FLOPPY DRIVE A.. BUT I JUST BOUGHT THE USB EMULATOR BRAND GOTEK FROM AMAZON I INSTALL BUT I LOAAED PROGRAM IN I USED EDIT AND F1 GO FLOPPY DICTORY BUT SHOW UP ARLAM THEY NOT SHOW THE PROGRAM IN MY USB DRVE .. I TRY TO LIST PRGRAM AND GO F3 BUT DON'T GET LUCK EITHER.. WHAT SHOULD I DO PLEASE HELP ME WITH .. I READY APPRECATED AND THAND ALL YOUR TIME TO HELP PLASE..

1100 Series 3 - spindle speed increase keeping TTS (R8)

ninefinger — Sun, 12 Jan 2025 16:40:00 GMT

I'm frankly surprised my searches have not turned up more info on the subject of increasing the spindle speed of the Series 3 spindles in a cost effective way, outside of add on speeders or separate high speed spindles.
I have a 2nd hand 1100 Series 3 mill, with TTS and ATC, so I'm looking at keeping those features. I'm not changing to BT30 as that defeats the idea of a low cost performance boost.
The max spindle speed from the factory is 5140rpm which is a step up from my last machine but still not great for small tools that I want to use more.
I've noticed in searching the Tormach site that the motor is still the same PN for my mill as it is for the newer 1100M and MX mill that has a 7500rpm max speed (45% speed increase), or 10000rpm with the BT30 spindle.
Also the 1100M is still R8.

My questions are - anyone with a 1100M -
I'm really curious if the whole 1100M spindle is able to fit as a drop in replacement -
can you tell me the max frequency the motor is spun up to?
Or the pulley diameters (motor and spindle)?

I can find a drawing for the S1 (R8) spindle (guessing here as its ~2008 drawing) and am making an assumption it is the same for S3, but can't find the newer M / MX series spindle drawing (assuming to eb the same as the M is upgradable to the BT30 spindle). The 770 spindle (10000rpm) I can also find but its much too small to fit easily.
Seems like from Tormach its about 150Hz max for my 1100 S3 motor. (about 4375rpm) so I can figure out pulley ratios (i.e. for 10K rpm they need to be ~2.3:1, for 7500 they can be ~1.7:1) , just want some ballpark diameters that are used.
I'm sure the current S3 spindle is capable - the bearings are rated to much higher than 7500rpm so it would just be a case of watching the temperature of the spindle to ensure its not getting too hot.
I think the big difference between a M and S3 with the R8 spindle is the drive belt and pulley changed to Poly-V type from regular V belt.

Anyways, enough rambling, any info is appreciated, this is a slow update project...

Mike

Attached Files

d35694a__pcnc770_spindle_assy_customer.pdf‎ (78.3 KB)
d40205_spindle_assy_30306_30505.pdf‎ (41.7 KB)

Need Help! Mori Seiki SL2500Y Mitsubishi Controller MSG-805 Parameters Lost

ahmtclkbs — Sun, 12 Jan 2025 13:33:58 GMT

Dear all, we need parameters for specified futures below.
Machine Model Mori Seiki SL2500Y/650
Serial : SL251AG0090
Controller : Mitsubishi MSG-805
Thank you in advance for your helps.
Have a good one!

Axyz ToolPath 2.9.04 Install Problem

Pavkal — Sat, 11 Jan 2025 19:54:21 GMT

Hello,
after installing the ToolPath 2.9.04 software.
After starting TPWin it reports an error:
File "xtl15_m600dm.dll" not found.

Does anyone have this file on their computer?
Can you please send it.

Thank you Pavel