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Type: Posts; User: JakeInCharlotte

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    Re: Jake's 4x8 CNC Build

    Hi NIC.

    I typically weld in a little "c" or cursive "e", that is a stronger weld IMHO but puts a lot of heat in the joint. For most of this project I simply dragged the puddle in a straight line...
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    Re: Jake's 4x8 CNC Build

    I'm not sure?? Are you talking about proximity sensors?

    That video about building an autocollimator is great.
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    Re: Jake's 4x8 CNC Build

    I'm still at it.... I spent the last couple weekends milling and scraping the ball screw nut. Also worked on the limit switch placement. That got me thinking.

    Will one switch be able to stop...
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    Re: Jake's 4x8 CNC Build

    I put a lot of thought into the welding. Weld distortion is real and spectacular! When I welded up the frame, I staged my welding so one weld would pull against the other. It seemed to work pretty...
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    Re: Jake's 4x8 CNC Build

    Some really good info there.
    I started work on the Z and Y(?) baseplate. I tried out my fly cutter, with pretty good results. Not as good as the insert shell mill though. The insert mill is able to...
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    Re: Jake's 4x8 CNC Build

    Peter, I have thought about that. I just have not been able to figure out what the actual temperature needs to be. It sounds like you need to get it up to temperature, hold the temperature for one...
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    Re: Jake's 4x8 CNC Build

    That drawing was a big help. I started milling the front last night and took of about .020".
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    Re: Jake's 4x8 CNC Build

    I left an extra .125" on the linear guide blocks for rough milling and scraping flat. Hopefully I won't have to take too much off the front and compromise the stiffness. The upside is I get to use...
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    Re: Jake's 4x8 CNC Build

    The holidays slowed me down a bit but I got a little work done on the Z Sled. My original plan was to mill it out of a solid piece of 1" which steel. After realizing how incredibly slow that would...
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    Re: Jake's 4x8 CNC Build

    The Bridgeport is great, but you are right about the speed. I'm doing the best I can with what I have. This a long term project.....

    Any suggestions for a endmill to remove a lot of material?
    ...
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    Re: Jake's 4x8 CNC Build

    I tried to get some work done on the router this weekend but all the Thanksgiving family fun made it pretty hard to do. The plan right now is to mill out the back of this 1" plate to save on weight...
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    Re: Jake's 4x8 CNC Build

    Thanks guys.

    I was able to get the gantry beam welded up except for the rail mounting plates. After too much thought I have moved my focus to the Z-Axis and plan to back out from there. I picked...
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    Re: Jake's 4x8 CNC Build

    The gantry is finally coming together. It’s seems like forever since I have worked on the actual machine. The welding table and “fireball”squares are working great. The table and squares took a lot...
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    Re: Jake's 4x8 CNC Build

    Finished the gantry bases.

    https://www.cnczone.com/forums/attachment.php?attachmentid=430864&stc=1
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    Re: Jake's 4x8 CNC Build

    Picked up a 5000# forklift to help me with the gantry beam build. The Bobcat was way too jerky and only has around a 1 ton capacity.
    ...
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    Re: Jake's 4x8 CNC Build

    I’m still here. Work is super busy but I have found time to build a sweet welding table out of a sub plate I found at the scrap yard. Other tools I built this summer include a weld positioner, slow...
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    Still at it. Added the 4” tube to the bottom...

    Still at it. Added the 4” tube to the bottom legs. I’m 6’3” and like a working height between 32” and 36” depending on the task. My table saw is 34” and I really like the feel so that’s the height...
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    Re: Jake's 4x8 CNC Build

    With a Bobcat, until now. I have reached and surpassed the capacity of my little Bobcat (743b). To flip it over I welded a steel caster on the rear of the table and pulled it out into the driveway....
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    Re: Jake's 4x8 CNC Build

    I have been putting in some late nights under the welding hood lately, and the legs are starting to take shape. I had the steel yard shear the 60" long x 3/8" plate to size so all I would have to do...
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    Re: Jake's 4x8 CNC Build

    A little more progress on the table. I hope to flip it over and start on the legs this weekend. So far the weld shrinkage has not caused too much distortion. I'm only welding 2" at a time. The...
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    Re: Jake's 4x8 CNC Build

    I was able to get a little work this done over the holiday weekend. Over the last few years I have been saving adjustable lally columns and thought they would be perfect for the stands to get the...
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    Re: Jake's 4x8 CNC Build

    It's finally happening!!!! Picked up the first order of steel today. The plan is to build some long saw horses that are level to get work at a height easy to weld. I'm still struggling to save the...
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    Re: Jake's 4x8 CNC Build

    Automation Overstock, surplus automation equipment, overstock automation devices, manufacturer overruns, linear bearings, variable speed drives, circuit breakers, contactors, starters, relays

    They...
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    Re: Jake's 4x8 CNC Build

    I am open to ANY motor option at this point. Geared or direct, I just want to make sure I leave enough space for them. The gantry is weighing in at close to 800lbs. On the IPM, I got those...
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    Re: Jake's 4x8 CNC Build

    Ripped the band aid off yesterday and ordered all the steel for the base and gantry. My design has changed once again and I'm going with an open base. Space is at a premium for all of us and the...
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    Re: Jake's 4x8 CNC Build

    Thanks Gerry. I was planning on a 5mm pitch screw, but I read an old post where you recommended 10mm or 20mm. Will I be able to lift the Z with spindle with a 10mm pitch ball-screw? On the same...
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    Jake's 4x8 CNC Build

    Greeting from the Olde North State, and welcome to my first CNC router build. This will be an all steel welded table with a 5hp ATC spindle (hopefully), Clearpath's or servos, linear rails, and rack...
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    Re: What Part To Start ?

    That is an awesome build!
    I am still in the Fusion 360 rabbit hole, but it is really cool.
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    Re: What Part To Start ?

    Friday was a rainy day, so several crews laid out. I took that opportunity to drive down to Belmont NC and visit with the guys at Colombo USA. I meet with Martin, Craig, and John for an hour and a...
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    Re: What Part To Start ?

    My frame design has changed as I have dug in deeper. The one I posted earlier seem great to me, but I saw a lot of welding. To me that equals heat, shrinkage, and distortion. I started searching...
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