I've made lots of triple clamps over the years on my machines...you certainly did it the hard way using the fourth axis. You could have done 90% of it flat in a vise with a more rigid set-up and next to zero clearance issues.
Very cool setup! I like the riser block to get your clearance. You really had to work to get this right but it's great to be able to show just what you can do with these machines. Hope all is well! - Tom Z
I done a few of these on my manual bridgeport 30 years ago before the mass cnc explosion. I think back then it was just in mass production cycles. Now i hope your helicoiling the threads
That was awesome to watch! If this were a large batch of parts to run I would take a double cut 45 degree saw to chamfer the saw cut slot that goes thru to the fork tube bore, and a regular chamfer tool to chamfer both top and bottom of saw cut. Then if you have enough tool stations, fashion a special tool to maybe broach a 45 degree chamfer on the inside of the fork tube bore where the saw cut breaks thru. Or simply take an end mill that is already being used to machine the part and plunge straight down where the saw cut meets the fork tube bore just to take that sharp edge away if you don’t have the luxury to add that special tool. 🤷♂️ but then you would take the deburr guys job lol. This machine has limited tools though so in reality if you had one tool station available to put that 45 degree double cut saw you are golden.
I don't care about Tormach... what you speak of here is golden visdom for the ages. Oh, you have a super special crazy - bit tooo big - tool to be used on that one thing... Let the post processor, know...when you hit the tool number 999... go fetch...because its a special code, to get that crazy thing, standing beside the part, on the same table, you are machining.... THIS IS SOOOO GOLDEN!
Next time instead of machining the boss on your stock try making that a separate piece, machine the last opp first to prep your stock, and bolt the fixture into your stock.
what do you think the positioning tolerance will be with a bolted fixture ? Now you have to machine very accurate fit and not to rely on the bolts for alignment.
For Tormach/Pathpilot users, there’s no need to edit your post processor for use with Fusion 360. David Loomes at Xoomspeed.com has the post processor already done and available as a free download. He seems to keep this updated with each Pathpilot update, if needed, and adds new features from time to time.
I admire your braveness what type of clamping you chose. I suppose it take you a lot of machining time. We are doing more types of triple clamps in serie production so we have completely different setup. We have tight tolerances on the side holes for columns. Wasnt it problem in your case?
Hello, thanks for this great Video. Now my Old Fusion Heidenhain Post can auto saver etract bevor M06 Toolchange. I had too tweek every code from Fusion 1Year long! what a great help! Could you do a video how to do the same work as you shown in a video, but only using a manual dividing head with optinal stops, so i could crank the handle to the next 90/180 degree? I think it would help a lot of people with older machines without an output for 4th axis, or with old style Haas external indexer Controler. Thanks allot.
This seems a complex way to do it. For our machines (heidenhain)our post processor posts out a program call with a link to a custom "safe" program already saved in the machine that move the spindle and bc axis into a safe position in reference to the machines actual position (m91). It does this before and after the tool call and it allows the post processes to work with any different machine as each safe program is custom to the machine and the processor calls it. For example on some machines it'll move the spindle up and away, and then move the spindle along the back of the machine and then along the right hand side until it reaches the tool change position, going completely around the bed instead of across it. It also does this before the bc axis moves to put the tool in a safe place
Instead of adding the lines for safety moves to the post you could have instead done what you describe, calling a sub-program that takes care of positioning the axes.
I have been working on a dragbike triple clamp and now can see how I can use our Haas 5C 4th axis to do this better I may machine a Hex and hold with a 5C Hex collet. thks
nicely done! but I can't stand how jeffrey is using his fusion window. don't you like some extra space with hiding the parts panel, or is it just my OCD? 😫
WoW amazing dude this is awsome I want to get a tormach now a really really good video I wish I could like it twice I want to get a tormach right now but you could use the saw in the first operation instead of the 2d contour it will be a lot faster but you'll have to cut the rest in a second operation or you can use the dewalt saw or something else that isn't necessarly a cnc but nice job
Nice job.. but what was the real actual cycle time and the actual time it took sitting at the computer programming. For reference purposes it would be nice if total actual sitdown program times ( including trials and errors until right) and complete machine cycle times (including speed and feed adjustments time) were included or disclosed at the end of the videos just like you display and disclose final speeds and feeds information.
Excellent video, good to see NYC CNC still uploading to RU-vid unlike some that have stopped for some reason?...Does anyone know about why John Grimsmo- Grimsmo Knives has stopped uploading?...They have ghosted RU-vid a couple or three months ago saying they were "slammed" and there was heaps of content coming?... can anybody tell us what's up?
I wonder if, instead of using that slitting saw like a meat slider, you couldn't have just used it like a chop saw. Position it to the center of the boss and then just plunge straight in to finish depth. Seems it would have been a lot faster, and as long as the coolant is running the blade should have stayed cleared and cool enough.
That would make a lot of tool engagement and these saws load up quickly. In addition to being a tricky toolpath to program. Not worth the risk after the time spent on the rest.
All that extra work and figuring out....makes me think that you would have been better off just doing it in separate ops. That's how we make our triple clamps.
I feel that the whole point in tabbing is sometimes missed. If you are doing a second opp to remove the tabs and drill some holes anyway, why bother with all the tricky tool paths to tab when you can just hog away the boss and remaining material in the last op? The point in tabbing is a one and done part. If you need another op after the tabs, there's no point in tabbing, just leave the gripped material on the part and remove it in the last op just like you normally would when working in a vise with a 3 axis setup. If you can complete the part with only tabs remaining that get removed with a quick bump on a wheel, then you've saved an op and there was a point in doing it. Otherwise, no point in tabbing. I've seen grimsmo doing similar things. Dovetailing a part to put in the kern, tabbing it off, then grabbing the part for another opp to tidy up the finish where it was tabbed. What was the point? Leave the dovetail on the part and machine it off in the second op if you're doing a second op anyway
Niche is pronounced knee-sh, not n-itch. I know it is an uncommon word and not said often, but I hope it helps if you use it a party or something (once we can have parties again).
