Marcos 4×4.

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This topic contains 50 replies, has 6 voices, and was last updated by  Marcos 2 weeks, 3 days ago.

Viewing 21 posts - 31 through 51 (of 51 total)
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  • #49015

    Marcos
    Participant

    Hello, Today I finally try my first cut, I already have my machine pretty clean visually and fixed.

    I bought these bits and Plywood

    https://www.amazon.com/gp/product/B074R9VXKQ/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

    HQMaster 1/8″ Shank Single Edged 1 Flute End Mill CNC Cutter Spiral Router Bits Cutting Milling Set Tool Carbide Tungsten Steel Upcut Bit 17mm CEL

     

     

    https://www.homedepot.com/p/Columbia-Forest-Products-1-4-in-x-4-ft-x-8-ft-PureBond-Birch-Plywood-165891/100092485

    • 1/4 in. x 4 ft. x 8 ft. PureBond Birch Plywood

    but everything ended very badly

    This was the drawing I wanted to make.

     

     

     

    https://photos.app.goo.gl/9QT1AGh0Z30Qkc0P2

     

    G-CODE

    Project podstavka
    ;Created by Estlcam version 10 build 10.047
    ;Machining time about 02:01:28 hours

    G90
    M03 S24000
    G00 X0.0000 Y0.0000 Z0.0000
    G00 Z1.5000
    ;No. 2: Engraving 7
    G00 Z0.5000
    G01 Z-1.0000 F180
    G01 Y82.9662 F480
    G01 X89.2823
    G03 X61.6083 Y53.2829 I2.0826 J-29.6836
    G01 X61.6119 Y52.8154
    G03 X121.0000 Y50.5912 I29.7532 J0.4673
    G01 X120.9534
    G00 Z1.5000
    G00 Z-0.5000
    G01 Z-2.0000 F180
    G01 Y82.9662 F480
    G01 X89.2823
    G03 X61.6083 Y53.2829 I2.0826 J-29.6836
    G01 X61.6119 Y52.8154
    G03 X121.0000 Y50.5912 I29.7532 J0.4673
    G01 X120.9534
    G00 Z1.5000
    G00 Z-1.5000
    G01 Z-3.0000 F180
    G01 Y82.9662 F480
    G01 X89.2823
    G03 X61.6083 Y53.2829 I2.0826 J-29.6836
    G01 X61.6119 Y52.8154
    G03 X121.0000 Y50.5912 I29.7532 J0.4673
    G01 X120.9534
    G00 Z1.5000
    G00 Z-2.5000
    G01 Z-4.0000 F180
    G01 Y82.9662 F480
    G01 X89.2823
    G03 X61.6083 Y53.2829 I2.0826 J-29.6836
    G01 X61.6119 Y52.8154
    G03 X121.0000 Y50.5912 I29.7532 J0.4673
    G01 X120.9534
    G00 Z1.5000

    https://drive.google.com/open?id=1_WevulOhapt07O0KFQQBts2eO2RqDd5z

     

    #49021

    Ryan
    Keymaster

    I can’t access your gcode, you can just upload it here.

    You built an absolute monster of a machine your gcode is going to need to be pretty perfect. That looks to be double the recommended size in the X, Y, and Z axis.

    In the beginning until you really know what you are doing you should start with drawing it with a pen, then try the exact gcode in High Density foam, then to wood if it is correct.

    Also stick to the corners when possible on such a monster build.

     

    #49024

    Ryan
    Keymaster

    How did you generate that file it is not correct.

    It has no info header and it has no rapid feed rates set. It will never work. I can;t help without knowing what you used to try and make that file.

    1 user thanked author for this post.
    #49034

    Marcos
    Participant

    Ok, I understand that 4 x 4 feet too much,  I was looking for a machine to do some work in my house.

    I upload the settings I have in the Estlecam.

    #49042

    Marcos
    Participant

    I wanted to do some work similar to these sizes and designs.
    In your experience, if under the size at 2 X 4 Feet? i would work? , would have the robustness.
    The Z axis is in 200 millimeters.

     

     

     

    #49049

    Ryan
    Keymaster

    4.png – you are using estlcam firmware. That is your issue. I do not support that as too many people have issues. Please use my firmware.  Suspect you have not have your settings correct on the 4.png page.

    A 200mm Z axis as a router is a bit out of the question really, sorry.

    As for the giant cuts I made the LowRider specifically for that.

    Here is some info,

    I have some size info on the second or third paragraph.

    https://www.v1engineering.com/specifications/

     

    This is the more direct size page,

    https://www.v1engineering.com/assembly/machine-size/

     

    A little more here,

    https://www.v1engineering.com/frequently-asked-questions/

    #49050

    Ryan
    Keymaster

    The gcode you sent me does not look like it was generated by the version of estlcam you have in the screen shots.

    You are showing rapids settings but the file does not have them and also does not have the estlcam header either.

    1 user thanked author for this post.
    #49057

    Marcos
    Participant

     For example if you wanted a half sheet wood router you will be fine if your cuts are 2D cuts all the way through, to compensate for any loss in Z accuracy just cut a bit deeper . You can go even bigger if you keep this in mind and use mid span support on the outer rails to supplement the rigidity.

     

    I’m not interested in 2.5, only in 2D….  I use Stelcam only to general the G, then Repetier to take the G and export it to the SD-Card.

    I’m in love with my machine. is beautiful,  I know I’m bored, I apologize, I just do not want to throw away my investment.

    Attachments:
    #49061

    Ryan
    Keymaster

    The file you have now cut and pasted above, is not matching the settings you show in 3.png. I would go through my setup one more time and look for any missed checkbox or info. You have to have a speed on every line, the “F” command.

    1 user thanked author for this post.
    #49063

    Jeffeb3
    Participant

    Watching that video though, it looks like your about to catch fire and you’ve either got a dull bit, or your cutting waaay to deep. Your gcode is trying to cut 1mm deep, so I think your bit is dull. I don’t think it’s a depth issue. You’d have to get pretty deep to have that big of a mess. I think you need to buy at least one nice bit. If you have a good bit to compare to, you can immediately tell a crappy one. If it’s really wobbly, it’s possible you’re digging too deep, because the bit will try to pull you in.

    W.R.T. build size, I agree that you’re starting it the hard way with that big of a build. I think this is a problem you can fix, but after that you might be upset with the precision at that size or you’ll get more failures when you try to go deep. Some alternatives for the projects you posted: 1) Cut thinner templates and trace with a pattern bit in a handheld router. 2) Make your MPCNC smaller, and combine the parts as a template or for the final work. 3) Build a low rider. 4) Shrink the mpcnc and find creative ways to work on the project boards one section at a time, by hanging the board off the side of the table.

    In the end, here’s my advice. If you’re having fun, then keep having fun. Buy a new bit. Measure the depth of that cut you made. And if you’re still having problems, try to think about this first setup as a way you can hone this new craft. Shrink the CNC. Learn CAM. Get some neat, smaller projects cracking (the lamp shades can be done smaller), and then expand to the huge size and at least know what you’re getting into.

    1 user thanked author for this post.
    #49068

    Your machine size is quite big, but I don’t think this should be a big issue unless you are looking for great precision or fast cutting speeds.

    Your problem looks like a combo of bad gcode, dull bit and non level table.

    First thing, your table needs to be dead flat everywhere, so that you have a consistent depth of cut no matter where you cut. This is critical if you want to get a consistent force applied on your bit, otherwise there is a good chance that your first path will be ruined, because you’ll lose steps. This is especially important given the size of your machine

    Second, check your gcode generator parameters. You surely have something wrong here. But I’m no expert here so you should follow Ryan’s advices.

    And last but not least, replace your bit with a better one

    1 user thanked author for this post.
    #49122

    Marcos
    Participant

    Ok, I’m improving a little.

    I have some problems with the material.
    It has some undulations, but I’m solving it, tomorrow I will print clamps.

     

    i Lower the feedrate speed, which result in “SMOKE”, tomorrow I will continue with the tests.

     

    buy these bits in amazon …

    HQMaster 1/8″ Shank Single Edged 1 Flute

    https://www.amazon.com/gp/product/B074R9VXKQ/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

    #49143

    Ryan
    Keymaster

    Burning is a pretty bad sign, get the bit too hot and it will go bad as well. With wood you should be able to go deeper and faster, try 4.5mm depth at 7mm/s. Your bit doesn’t really look like it is cutting, pretty sure it is a goner.

    1 user thanked author for this post.
    #49169

    Vincent Pollaro
    Participant

    I don’t like the look of those bits. They do not look like proper end mills. Based on the pictures on the Amazon link, they have no cutting edge at the tip and do not look like the would plunge well and would cause excessive friction leading to the burning. Sometimes it is better to buy one $15 bit than try to get 10 for the same price. You really do get what you pay for.

    1 user thanked author for this post.
    #49516

    Marcos
    Participant

    From Amazon what are the ones that you recommend?

    I need to do some work in wood and acrylic.

    • This reply was modified 3 weeks, 1 day ago by  Marcos.
    #49517

    Marcos
    Participant

    A Question  I’m having some technical problems with my estlcam
    I need to cut first what is inside.
    But it begins to cut the marked thing in  red arrows and it leaves me for the last thing marked in blue. Which gives me that the piece is loose and move ….

     

    any suggestion ??

     

    Thanks

    #49520

    thesfreader
    Participant

    Marcos, there is an option to “force” the order in which the different cuts are made : I think there is an action in a menu to update the Machining Order (historic manual link : http://www.estlcam.com/e2_objekte_bearbeiten_menue.php cf Machining Order)

    1 user thanked author for this post.
    #49521

    Marcos
    Participant

    works perfect Thanks!

    Excellent solution

    1 user thanked author for this post.
    #49556

    Marcos
    Participant

     

    I am very happy with this machine, it is a marvel, very resistant and at the same time very docile.

    I’m going to change its size to 4 x 2.
    to improve its rigidity and speed.

     

    I am working on prototype launchers for FPV drones.

     

     

    • This reply was modified 3 weeks ago by  Marcos.
    #49718

    Marcos
    Participant
    #49780

    Marcos
    Participant

    today try a little carving. This machine is all terrain.

     

    1 user thanked author for this post.
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