information, as you mentioned take your time with those angle cutters is key. I run them so slow that one pas takes at least 1min for 5cm. Then those cutters wont go dull as fast they dull but not that fast even for they are soldered carbid. Nice thing you build there =)
Nice recovery! I think the semi-circular feature is clearance except for the raised boss that retains the "lead screw" so your method seemed fine to me. The fit is really between a slot in the screw to that bosses thickness to minimize backlash in the adjustment, I expect.
Some very difficult machining operations there. Very bad luck on the dovetail cutter and mill gears. In the end an excellent part, and a perfect dovetail fit. Cheers Nobby
Make sure you have at the very least a 1mm flat on the 2 external corners to clear the inevitable internal radii left by the dovetail cutter. This will ensure you are not locating just on the corners, any grit will quickly pick up in those areas.
Your dovetail cutter grabbed because you were CLIMB cutting at the time. The backlash in your x direction allowed the cutter to grab, Yes you could state the issue as too fast of feed, but even slower speeds, this can happen. Especially with dovetail cutter because of the amount of cutter engagement at one time, it is safer to cut were the cutter wont grab the material and lunge forward and taking up that backlash of your lead screw. Nice fit in the end though.
I cringed a little when the dovetail cutter caught and broke. I've had that happen myself ironically on the same type of job. I'm glad it turned out nice for you. I am rather curious as to how the tool holders are to be secured. It looks rather thin at the edge for a grub screw. Is the perhaps a pin that goes through the middle somehow?
I think if you had been up cutting instead of down cutting the mill table wouldn't have gotten pulled to take a ~0.100"+ cut and broken off teeth. Cutter was turning same direction as you were feeding, if your 'pushing' the cutter into work, any backlash won't matter as screw is always 'loaded' Down cutting just for finishing pass would be fine at around 0.005"~0.010" it gives a much better surface finish. Cutter looked like it was doing great up to the point it stalled. Glad you managed to salvage everything though. I subscribed to follow along.
@@EnglishHobbyMachinist BTW, I'm British so don't use the American term 'climb milling' which you will find in many video's. Take a look at cutter 'hook' to see if cut will start at top of material (down cutting - climb cutting), cutter tries to climb over surface. or 'bottom so rotation will 'scoop' material out. day or so ago I started making a 30degree tool to hold cut knurling wheel. (I don't want it 'adjustable') In beginning, 0.010" to see how cutter was coping ( stainless I've never used before, 'mystery metal' ) It actually cuts real nice with carbide so I kept increasing DOC. until it was 060" deep. 3/4" square bar thinned down to 0.525" real quick even on cheap Chinese mill/drill. 😁 (been retired a few years,)
The final comment asked for us to hit the subscrube button to enable you to grow the channel so that you can 'keep making these videos'. How does that help? It suggests that if I don't hit the subscribe button you won't be able to continue, is that the case?
If people subscribe I know people are interested in what I am doing, but if no one is interested then there is no point in me taking the time and effort involved in recording and editing the videos. No one is forcing you to subscribe it’s just a token of appreciation. Thank You
![Blox Fruits Dragon Rework Update [Full Stream]](http://i.ytimg.com/vi/EqDAp8udhm0/mqdefault.jpg)
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
Top Job, Sir 👌
Thank you
Well, that was a callenging part to make. Nice.
Thank you
Yes those dovetail cutters are great but slow and coolant is the way to go. Nice job on the slides
I found that out 😂 it was my first dovetail 👍
I thought it was only me that had bad luck with cutters. Job done.onward and upward.😊
It happens to all of us 😂
information, as you mentioned take your time with those angle cutters is key. I run them so slow that one pas takes at least 1min for 5cm. Then those cutters wont go dull as fast they dull but not that fast even for they are soldered carbid. Nice thing you build there =)
Thank you
Very nice work sir. You make a nice attachment there. Very interesting.
Thank you
Excellent, a well detailed, and how you explained to making your parts...
Thank you
Nice recovery! I think the semi-circular feature is clearance except for the raised boss that retains the "lead screw" so your method seemed fine to me. The fit is really between a slot in the screw to that bosses thickness to minimize backlash in the adjustment, I expect.
Yes your right, thank you 👍
You are learning !!
Thank you
Nice work.
Thank You
Some very difficult machining operations there. Very bad luck on the dovetail cutter and mill gears. In the end an excellent part, and a perfect dovetail fit. Cheers Nobby
Thanks Nobby, Yes it was a bit costly but lesson learnt 👍 ATB Mark
Make sure you have at the very least a 1mm flat on the 2 external corners to clear the inevitable internal radii left by the dovetail cutter. This will ensure you are not locating just on the corners, any grit will quickly pick up in those areas.
Thanks for the advice 👍
It's a bummer when you break a cutter, but you turned out a great part. Mine ended up with a gibb strip in it 😁
That was in the back of my mind if I cocked it up 😂
Your dovetail cutter grabbed because you were CLIMB cutting at the time. The backlash in your x direction allowed the cutter to grab, Yes you could state the issue as too fast of feed, but even slower speeds, this can happen. Especially with dovetail cutter because of the amount of cutter engagement at one time, it is safer to cut were the cutter wont grab the material and lunge forward and taking up that backlash of your lead screw. Nice fit in the end though.
Thank you very much for the advice, somebody else said the same thing 👍👍
How do You meauser the dovetails to get such perfekt fit?
I got them close and then I trial fit after every pass 👍
I cringed a little when the dovetail cutter caught and broke. I've had that happen myself ironically on the same type of job. I'm glad it turned out nice for you. I am rather curious as to how the tool holders are to be secured. It looks rather thin at the edge for a grub screw. Is the perhaps a pin that goes through the middle somehow?
You are correct there is a pin and grub screw in the centre which means you can only fit one end at a time 👍
I think if you had been up cutting instead of down cutting the mill table wouldn't have gotten pulled to take a ~0.100"+ cut and broken off teeth.
Cutter was turning same direction as you were feeding, if your 'pushing' the cutter into work, any backlash won't matter as screw is always 'loaded'
Down cutting just for finishing pass would be fine at around 0.005"~0.010" it gives a much better surface finish.
Cutter looked like it was doing great up to the point it stalled.
Glad you managed to salvage everything though.
I subscribed to follow along.
@1crazypj Thank you, it was my first ever dovetail, I did learn from it 👍
@@EnglishHobbyMachinist BTW, I'm British so don't use the American term 'climb milling' which you will find in many video's.
Take a look at cutter 'hook' to see if cut will start at top of material (down cutting - climb cutting), cutter tries to climb over surface. or 'bottom so rotation will 'scoop' material out.
day or so ago I started making a 30degree tool to hold cut knurling wheel. (I don't want it 'adjustable')
In beginning, 0.010" to see how cutter was coping ( stainless I've never used before, 'mystery metal' )
It actually cuts real nice with carbide so I kept increasing DOC. until it was 060" deep.
3/4" square bar thinned down to 0.525" real quick even on cheap Chinese mill/drill. 😁
(been retired a few years,)
@1crazypj Thank you for sharing your knowledge 👍
The final comment asked for us to hit the subscrube button to enable you to grow the channel so that you can 'keep making these videos'. How does that help? It suggests that if I don't hit the subscribe button you won't be able to continue, is that the case?
If people subscribe I know people are interested in what I am doing, but if no one is interested then there is no point in me taking the time and effort involved in recording and editing the videos. No one is forcing you to subscribe it’s just a token of appreciation. Thank You
Taking some metal off of, on on the job.😢
Sorry I don’t know what you mean 🤷🏻♂️
Don’t climb using a Dove tail on a small mill. They just aren’t rigid enough. Do all your roughing in a conventional cut.
Thanks for the advice, it was my first dovetail ever, lesson learnt 👍👍