2016 POTD Thread Archive

[chevydyl]

Sorry mark, he's not an instructor, but just Google ztfab, that will get some pics and maybe one video or so, but his website should be at the top, zero tolerance fabrication, here's one image

Not every picture that shows up on Google are his welds only the really nice ones

 

[intjonmiller]

Easiest to just follow ztfab on Instagram. If you aren't using Instagram you should. I learn almost as much there as I do from forums or YouTube. Tons of metalworkers, machinists, woodworkers, etc. Loads of inspiration. I'm on there under the same username. Flip through the people I follow for a good start.

 

[markknx]

View attachment 121331 Sorry mark, he's not an instructor, but just Google ztfab, that will get some pics and maybe one video or so, but his website should be at the top, zero tolerance fabrication, here's one image

Not every picture that shows up on Google are his welds only the really nice ones

Well there are some good welds there. But the one on top although it looks pretty and will hold fine for it's intended use I'm sure. Should be tightened up. It would most likely get rejected do the lack of tie in at the toes. It looks more like a roll of tack than a continues weld. All them valleys make great places for cracks to form. A bend test would more than likely break the weld at these points. Just my opinion though based on what I have seen inspectors reject and failed test plate I have seen. Not mine of course.

Mark

 

[chevydyl]

Lol omg mark, that's funny you mention the bend test, cause his welds pass with flying colors, there are a ton of people that bawk at the appearance of the welds and just haven't a clue that they are just as strong as "proper" mig beads, it's technique, not trigger stop trigger stop, and intended purpose? Really? They are in a desert race truck flying through the air at 80+mph, 3ft whoops, weighing in at around 3000lbs or more just totally stressing that vehicle to the max, what more of an invitation for Cracks and abuse do you need to become a believer that those are as sound of welds there could ever be??? You must be an ol timer, stuck in your ways lol, damn kids, those welds are gonna break on the first mile down the track hahahahahaha

I can assure you those are continuous welds, not tacks, and the one corner where there are 3 joints, he welds like that one some corners for a reason, whether it's just aesthetics for instance, having all the ripples facing a certain direction or maybe it's heat control to control warping, idk the guy is a master welder, but I'm out, I can see your not gonna be made to think those welds are of the best there is cause it's new, it's not the old mig pattern that all the ol timers grew up on, and we're taught that way the right way, and the only way

 

[Duker]

Well there are some good welds there. But the one on top although it looks pretty and will hold fine for it's intended use I'm sure. Should be tightened up. It would most likely get rejected do the lack of tie in at the toes. It looks more like a roll of tack than a continues weld. All them valleys make great places for cracks to form. A bend test would more than likely break the weld at these points. Just my opinion though based on what I have seen inspectors reject and failed test plate I have seen. Not mine of course.

Mark

As Chevy mentioned, Paul, aka ZTFab's main line of work is custom fabrication and his work is stressed at many levels. He has a big following not only because of the robotic ease in which he makes welds look but the quality of his work. I like watching Jody from WTT but if I had to be in a roll cage where my life depended on it I would pick Paul to build it everyday......He is the real deal...


Sent from my iPad using Tapatalk

 

[johnnyc14]

Johnny ,
If you rotate the sleeve as shown in the bottom picture so the slot is between 09:45 hrs and 09:50 hrs the slot will be easier to close up giving you a much greater grip as well as keeping excessive strain off the clamping screws

I had similar problems to you and made a sleeve up too but found the tool rotated a bit whilst I was boring a 2 " hole .
Once I realised why it had turned and I'd reset the clamping slot it tightened up very easily and very effectively .

Thanks, you're right. I found the same thing the first time I used it.

John

 

[markknx]

Lol omg mark, that's funny you mention the bend test, cause his welds pass with flying colors, there are a ton of people that bawk at the appearance of the welds and just haven't a clue that they are just as strong as "proper" mig beads, it's technique, not trigger stop trigger stop, and intended purpose? Really? They are in a desert race truck flying through the air at 80+mph, 3ft whoops, weighing in at around 3000lbs or more just totally stressing that vehicle to the max, what more of an invitation for Cracks and abuse do you need to become a believer that those are as sound of welds there could ever be??? You must be an ol timer, stuck in your ways lol, damn kids, those welds are gonna break on the first mile down the track hahahahahaha

I can assure you those are continuous welds, not tacks, and the one corner where there are 3 joints, he welds like that one some corners for a reason, whether it's just aesthetics for instance, having all the ripples facing a certain direction or maybe it's heat control to control warping, idk the guy is a master welder, but I'm out, I can see your not gonna be made to think those welds are of the best there is cause it's new, it's not the old mig pattern that all the ol timers grew up on, and we're taught that way the right way, and the only way

As I said most of them look like good welds, no I am not apposed to the mig like tig welds. I would even try it once I set up a bottle on my welder. Just from experience welding inspectors hate to see low spots.
For the size of the part there is plenty of weld that it should hold very well. As far as what more stress do you want How about an 18 x 55 H beam in an 8' cantilever canopy, decked taking snow and wind loads in a area that has 100 deg. temp changes from winter to summer?

Again not knocking ZTFab, looks like he does great work and he can out weld me for sure on mig and tig in looks for sure( most likely in quality also)

I agree that He is a great welder, But We must agree to disagree on that top weld being able to certify. (not that it won't hold)

For the record unless you are using some special alloy I could have my 14 year old weld a well designed roll cage and the cage would break or collapse before the welds. For the most part everything is welded way passed the stress levels it should ever see. Would I trust the part welded in the photo yes.

 

[Dan_S]

I purchased this case from B&H when i ordered the camera. The case I ordered was a Pelican 1500.
http://www.bhphotovideo.com/c/product/40657-REG/Pelican_1500_000_110_1500_Case_with_Foam.html

well I'm an idiot, while disposing of the shipping box a few minutes ago, I realized I ordered the 1450, not 1500.
http://www.bhphotovideo.com/c/product/75514-REG/Pelican_1450_000_180_1450_Case_with_Foam.html

 

[johnnyc14]

I really miss the quill DRO that came on my PM932 mill so I wanted to add one to the Ferro knee mill I have now. I bought two 6” digital Accu-Remote scales from KMS tools on sale at $30 each and use one on my lathe and the other for this project. I started by making up a prototype bracket from a couple of pieces of aluminum angle and pop rivets.











I made the permanent versions from a length of 2.5” square 6061 aluminum tubing with 3/16” wall. I marked out the pattern on the tube with a scribe and highlighted it with a sharpie then carved it out on the mill with a ¼” end mill. I painted the final product with engine enamel and baked it at 250 degrees for 2 hours to harden the paint.








I had to reduce the OD of the fine feed wheel to clear the thicker bracket so I put a knurl on it as well.











I also had to make up a plug to fit into the hole in the quill stop. It has a nose machined on it that fits into the hole and on the other end is a 5mm threaded hole to fasten the bracket of the digital scale. I attached it the quill stop with JB Weld epoxy.










It turned out well.

 

[FOMOGO]

Nice fit-up on the scale, and I like the knurl on the hand wheel. Mike