How to hold it?....Milling a Manifold 

I have interviewed a lot of engineer and asked them to explain what they have done. I never had anyone explain things as clearly as MrCrispin.

Welcome Home, Podner! Brilliant video; understanding your approach to solving the problem is very instructive. I am sure that I speak for most of us that workholding is many times the most challenging, interesting and rewarding part of completing a project. Cheers, Charlie

@0:29 - In case anyone is curious which I doubt - the red/green/yellow light tower are called "Andon Lights" It's a visual management too used in manufacturing and other processes. Tangential, I will admit.

Very nicely done. What an enviable selection of angle plates you have at your disposal. Best wishes, Dean.

Another excellent masterclass. Every word a gem. Thank you.

I really appreciate you showing this. Work-holding is my biggest weakness. Thanks for sharing!

Another great video. You once again proved that often times the more challenging part was the fixturing! Great job as our usual! Btw I liked your new hat! Thanks again!

Enjoyed watching both this one and your travel video too. Well done!!

Lots of very valuable tidbits in this one! Thanks!

As I am wont to do, as a non-machinist, I stopped the video after you said what the problem was and tried to figure out how I would hold the manifold. Of course, not know what you had at hand in regard to fixtures, I had to make some general guesses, but I came pretty close to your solution. I really appreciate your excellent videos. Thank you, Mr. Crispin.

What better way to show that you can never have enough angle plates, blocks and other paraphernalia to aid work holding. A very interesting discourse. Thank you Crispin. 👏👏👍😀

A fine demonstration showing careful setup achieves top results. 👍

Really nicely done!

I came for the latest hat toss, the rest is icing on the cake--LOL Excellent result as always, Mr. C never does sloppy work, accuracy is the Mr. C hallmark.

Nice one Cris, just done a Singer Chamois exhaust manifold, 2 hours setting it up 10 mins machining!

Interesting setup Mr Crispin but worked well.👍👍

Great set up along with nice milling.... :)

Good evening Mr Crispin 🤠 I’ve said before I’m no engineer but I’m fascinated with your fantastic machining videos 👍🏻

Greetings from East Tennessee. I'm glad you enjoyed Appalachia!

I have the tilting table on my FP1. That makes setups like this one a lot easier. But it's also a bit less rigid.

Good information at the end regarding diameter of cutter and amplification of error. Thanks.

Thanks for sharing.

I'm glad you used a jack. 🙏🏼💯

Reason number 2 is something a lot of hobby machinists don’t use. They will simply use a large fly cutter because it looks like it’s flat. The machined face is usually concave depending on how square the head is. Good instructional video. 👍

I enjoyed that clever set up . Me being rough i would have welded a bit of flat bar on to the bottom then held it in the vice . cut off the tack welds and refinish .

Interesting. Thanks! Good thinking to set it up on the surface plate first.

“It does look a little old fashioned… No not me - the work holding arrangements!” 😂

Great setup,excellent explanations,almost a lesson of an gentlemans English at its best, did I missed something?

I enjoyed your explanation particularly on the use of the small cutter. Very useful. Incidentally, I also have a Deckel the same as yours. It would be nice to talk more on the mill. Is that possible?

Hey great video, I really enjoyed “working with you“ , going through the thought process of setting the job up that was great! I’d originally assumed you’d be fly cutting it but your reasons given for cutter selection make perfect sense to me now you’ve explained them , also it looks like No 4 may be high and have caused potential clearance issues with fly cutting too. I’d never really thought of a smaller cutter giving a flatter surface if the spindle tram isn’t 100% iv noted it now tho 👍🏻 Good to see brothers toothbrush still on the go there too

I had a thought while watching: on my travels in Germany I saw a demonstration of a vacuum mattress for spinal injury patients. It’s a bit like a beanbag chair, can be formed and then the vaccum is applied and the grains inside lock together really tightly for a completely solid surface, but moulded to requirements on the scene. There’s got to be some other clever people besides you at RR, would that not be a marvellous invention? A bit like a mag-chuk, but allowing any shape to be mounted in seconds? Nicely presented and lovely surface achieved - as always, thanks for sharing!

Thanks

Howdy mr crispin

Stainless steel manifold, a high end item indeed?. Nicely done. Thanks for sharing

I swear I saw a red Andon 🚨 on the J&S Crispin😁. Interesting setup, good result, and you also reminded me why I don't bother with coolant tanks🤣🤣, maybe that was what the Andon was for😊. Cheers, Jon

Informative video as ever Mr Crispin Are you planning any more progress on the locomotive

Thirty seconds in you say "...or, should you be already bored with this video..." Hahahaha! That's great!

Nice to see you back, a very good set up, I love the Deckel FP1, if you had room, could you have used a fly cutter? if you machined all the way across, would have taken any spindle mis- alignment out, just a thought! cheers, Dave

good show as always! if youre ever in the states again, i would like to suggest vermont... ...in spring or fall...the furthest you can get from mid-winter or mid-summer...lest ye favor dreadful weather.

When you can't line up the holes of a part with the holes on an angle plate (or any other mounting surface as far as that goes), you could just make a mounting plate drilled for holes that match the angle plate on one face and holes to match the part to be machined on the other face. This also works if you don't want to put more holes in the angle plate.

Excellent as always Mr Crispin. Any update coming up on the loco build?

Very informative. I assume this isn't your first complex work holding rodeo. ... ... Yeehaw, etc.

I would have held it the same given what you have, once you had the first plane level with DTI, the second plane I would have used a spirit level then adjust your sign bar to get bubble in middle( thats assuming table is level & m/c) final check with DTI, that's how we do it in Coventry 👍🧐, always look forward to your videos thanks.

Nice job, looking forward to some locomotive machine work soon? 🙏

You were here in America I didn’t see you lol

Good work, if I may suggest, using a precision level would have made things considerable easier at least to get close to the final clocking. Also, manifold sealing faces normally need to have circular machining marks to avoid the creation of leakage channels. A Deckle FP1 is too small for this job and would have been better done on a Bridgeport + Wohlhaupter style boring head in facing mode. Happy New Year in a few hours 🙂

Another great work holding setup Mr Crispin. Thanks for sharing. What's the channel with your American adventure? Cheers Nobby

Mr. C, that is a wonderfully nice casting and porting, best I can see! May I ask the origin?

Nearly spat my fizzy water all over the screen and keyboard. "Been to America!"

Howdy Cowboy.

Would not a jack under the component greatly help in holding and positioning the component with stable and predictable movement?

mr Crispin, yet another great video. i learnt something from this on as well. 14.20 ish seconds in. arent you supposed to hold the bolt and tighten the nut? not the othe way as you did. please correct me if im wrong.

Nice job, can you define OCD?

It's always a laugh to me when the setup takes longer than the machining. Sometimes hours of discussion/planning with my peers, gathering the fixturing I need (or making it myself), prepping a program, finding the tools/tool holders, carefully cleaning each surface to reduce the compounding error; all for a cut that takes about 90 seconds. Those engineer types really don't know what they're asking a lot of the time.

Howdy

You could rotate the angle plate to reduce overhang

Could a parallel have been used to extend the plane and amplify the indication?

Hi Mr Crispin - I run an old Elliot horizontal mill with a Bridgeport head mounted via a swivelling mount system for vertical use. It works but lacks rigidity. Whilst watching clemwyo (K&T Mill vertical Head Mount) he mentioned that you had some ideas on such arrangements. Any comment please? Regards, John Johnson

It looks like that flow was not considered when they made that manifold.

Oh man you were ? I would have bought you a Tennessee whiskey or at least sent you one.

not old fashioned work-holding, old school cool work holding

However you hold it - make sure to give it a good shake when you're done. I have it on good authority that wringing it out is NOT the correct thing to do. Thanks doc!

Looks awfully clean to be an exhaust manifold, what engine does it belong to? Dipped into your Bluegrass/Blues/Mountain Music love affair video, very informative, I enjoy the soundtrack from "Oh Brother Where Art Thou" without knowing anything about the music's source, you've corrected that, thank you.

I would have built a wooden frame around it all

It seems like a tripod of good stout jacks and hold-downs would do the job.

I am a hobbiest, I would ask why you didn't use a fly cutter ? Cheers

Fixturing...another artform not fully appreciated...well done Mr. C

Any chance you’re going to resume the steam engine?

You need to tell us what engine that attaches to!

Mr Crispin, You should have used a fly cutter you had room to do that mate

Mr Crispin's American cousin...?

Howdy Pardner. Ya know, here in Texas we got a thing called a "bulls eye" level. You coulda got close much faster with that and that's no bull.

Someone needs a boring an facing head

Tooling or fixturing..

WHY YOU NOT DOING ANY VIDEOS ANYMORE JUST ONE EVERY YEAR IS NO GOOD ??????

I do wonder how people "like" something they have never had time to watch?

No wonder England lost the war 😂

Big Hat, what! No Cattle.

Pity you don't have the angle table for the FP1

Hi MrCrispin, please add the link you mentioned to the video description. I’d love to watch your travels on this side of the globe. 🤍