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Taigs are fantastic machines, I have one out in my garage. The one bugaboo that drove me nuts about the machine until I fixed it is the weight of the head with the motor on there. Making a negative Z movement is fine, but doing a rapid Z up will stall out the motor frequently. There's just a ton of weight on the Z axis leadscrew that the motor has to overcome, and since my model is just steppers with no feedback you have to stop the run and re-zero. The way I ended up fixing it is pretty common, I had seen others do it. I found a stud in my garage cieling roughly over the machine and mounted a couple eyebolts. I hung pulleys from those and rigged up a counterwight system with some rope and heavy chunks of old steel. It definately helps prevent stalls on Z up moves. The machine is unbelievably sturdy and well-built though, just fantastic craftsmanship all around.
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Aug 29, 2014 05:10
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| # ¿ May 7, 2024 13:14 |
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In small hobby CNC, the 4th axis is almost always a rotary table. I've never heard anyone considering the table consumable, you should always be careful in your fixturing to avoid digging into the table. There's plenty of ways to do it, whether it's stepper blocks and clamps, a bolt-on fixturing plate, or just a good vise.
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Oct 6, 2014 12:49
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One of the first projects I did on my Taig was building a fixture plate out of a chunk of .25" aluminum plate I had laying around. I just drilled through holes in the corners for T-nuts, bolted it to the table and ran a program to drill a grid of 10-32thd holes across the surface. After it was done I did a flat cut across the front of the plate so I could indicate off it to line it back up square when putting it on the machine. It works great, I've used it to hold down all kinds of finicky thin things, and there's no need to worry when you cut into it. It's got faint cut marks from projects on the surface, but it's still nicely flat and if it ever gets too torn up I'd just make a new one.
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Oct 8, 2014 15:53
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Run the same code with a ball end mill, just adjust the Z depth so the radius is cutting just a bit out of those sharp edges. Works a treat on metal, not sure how it would handle on wood.
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Aug 19, 2016 02:27
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Yeah I looked into building a pendant style control for my Taig a while back. I figured it would be pretty easy to just cram an Arduino in a small enclosure and get the thing talking to Mach3. It probably would be, but once I started pricing out jog wheels and rad as gently caress pucker buttons I realized it would just be a huge pile of money for something I don't really need-need. One day I want to get a real full sized lathe. One of the most depressing things was almost getting a perfectly functional LeBlond with the rad SPEED DIAL for $200 or so. The community college I was going to still had 2 of them, but were replacing them with newer machines. The department head said they were just having them hauled off for scrap, I begged to pay the scrap value for one of them and they were going to let me do it. Then promptly forgot and had them hauled off anyway. Fuckers.
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Dec 27, 2016 11:00
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| # ¿ May 7, 2024 13:14 |
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Ambrose Burnside posted:yeah, this was ultimately why i didn't come down on him hard like i've had to with other students, he just did not realize he wasn't in a state to be working on a lathe, benzodiazepines are funny that way wrt judgement and perception. A few years ago when I was working retail, our assistant manager got prescribed some hefty pain meds for a sprained back. One night he had taken some before close, and did the most bizarre poo poo. Brought out a pallet of merchandise and just parked it in the main aisle then wandered off to do something else. Closed the registers and took the cash back to the office then biffed his password so many times he got locked out. I went back to try to figure out wtf was going on and he had cash just spread all over every horizontal surface thinking he was counting it. He wasn't even acting odd in terms of speech or movement, just complete brain function shutdown and he had no idea anything was even wrong. Probably still the strangest I've seen someone act without being trashed or literally having a stroke.
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Dec 25, 2021 08:16
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