pressbrake1
Member
- Messages
- 5,758
- Location
- Essex
Looks like it’s been modified for more than doubleboost!
Sorry not funny
- Thread starter Kram
- Start date
Sorry not funny
pressbrake1
Member
- Messages
- 5,758
- Location
- Essex
Need a price to make a 127 for my Holbrook if you’re interested?127T gear made again, went perfectly this time.
Still rings like mad, need to start adding sound deadening.
View attachment 228007
pressbrake1
Member
- Messages
- 5,758
- Location
- Essex
Quick set of lifting eyes for the devlieg.
I wanted full thread depth as specified and standard eye bolts are less than 2x diameter.
1 1/4 whit
I wanted full thread depth as specified and standard eye bolts are less than 2x diameter.
1 1/4 whit
grim_d
Unlikeable idiot.
- Messages
- 4,271
- Location
- Scotland - Ayrshire
Could be, favours for favours rather than any money exchanging hands I'd say though. What's the DP and pressure angle as I only have DP14 cutters, though cutters are pretty cheap.
pressbrake1
Member
- Messages
- 5,758
- Location
- Essex
Big shock it screwed in ok
Kram
Member
- Messages
- 8,188
- Location
- Sussex
And today no problem
Got to 10mm depth with a chinese 6mm then swapped to The Hydra - this is the same cutter I tried to mill chrome plated bar with and not blunt yet. It is labled PM Co 10.5, not ordinary HSS. I do most of my milling with this. If it ever wears out I have 4 more 
zx9
Forum Supporter
- Messages
- 5,204
- Location
- South East London
I might have bitten off more than I can chew!
Looking for something useful to make I decided to have a go at a positioning hammer as in this series of videos.
I did underestimate how much more difficult it would be using a 3 1/2" Drummond, his lathe can take 19mm through the spindle, mine well lets just say I am having to use the fixed steady a lot, making set up and tool positioning a lot harder. Next step is turning between centres and then turning a long taper, of cause he uses the taper attachment, me it will be offset tail stock.
Just toying with turning off the first 6mm of knurl which is not so deep as the rest but I think I will just leave it as is.
Edit: More posts to follow as I progress.
Looking for something useful to make I decided to have a go at a positioning hammer as in this series of videos.
I did underestimate how much more difficult it would be using a 3 1/2" Drummond, his lathe can take 19mm through the spindle, mine well lets just say I am having to use the fixed steady a lot, making set up and tool positioning a lot harder. Next step is turning between centres and then turning a long taper, of cause he uses the taper attachment, me it will be offset tail stock.
Just toying with turning off the first 6mm of knurl which is not so deep as the rest but I think I will just leave it as is.
Edit: More posts to follow as I progress.
zx9
Forum Supporter
- Messages
- 5,204
- Location
- South East London
I really don't know how you cope with that, I have seen perspex / polycarbonate screens about a4 size positioned on mag mounts, might be worth your while to make something similar.Face milling with the work towards you. This launches blue hot chips upwards. And down the back of the neck!
My hot chips learning curve extended to burning both fore arms yesterday after discovering that ground HSS can take much deeper interrupted cuts than the inserts I have been destroying in the past.
Hood
I am obsessed.
- Messages
- 17,884
- Location
- Carnoustie, Scotland
Delrin makes a mess? surely not Good thing though it is easily cleaned up. Brass however is a PITA, months later you will still be getting stabbed with the wee needles.
Best thing for it is to have a CNC, the same mess but all contained
Good thing though it is easily cleaned up. Brass however is a PITA, months later you will still be getting stabbed with the wee needles.Best thing for it is to have a CNC, the same mess but all contained
mtt.tr
Member
- Messages
- 8,460
- Location
- Essex/Suffolk border
Delrin makes a mess? surely not
View attachment 229025 View attachment 229026
Best thing for it is to have a CNC, the same mess but all contained
View attachment 229027
I remember when i was in the cabinet shop some how we ended up drilling plates of delrin can't remember the context or why now.
Standing at a fobco using a forster bit for a day was an awful mess.
Though vacuuming up was easier.
Hood
I am obsessed.
- Messages
- 17,884
- Location
- Carnoustie, Scotland
I actually love working with Delrin, well usually Acetal but basically the same. It cuts nice and although it makes a mess, as you say, it vacuums up easily. You can take massive cuts, the depth of which is limited by the insert edge length, so with a DNMG 15**** that is a lot off the dia in one hit Only downside is if you need tight tolerances it can take a bit of work, these had to be +0/-0.02 for some strange reason, in fact I had to actually redo one because although it wasn't out of tol the tube was. Normally I measure the tube and make to suite but I was told to make to drawings so that is what I did.
Nylon however I hate, horrible bleeding stuff that will slice your fingers off if you are stupid enough to get in the way of the stringers getting wrapped round a chuck. I have had tools pulled out of the turret before with nylon.
On the CNC it is not too bad as you are out of the way.
Only downside is if you need tight tolerances it can take a bit of work, these had to be +0/-0.02 for some strange reason, in fact I had to actually redo one because although it wasn't out of tol the tube was. Normally I measure the tube and make to suite but I was told to make to drawings so that is what I did.Nylon however I hate, horrible bleeding stuff that will slice your fingers off if you are stupid enough to get in the way of the stringers getting wrapped round a chuck. I have had tools pulled out of the turret before with nylon.
On the CNC it is not too bad as you are out of the way.
Hood
I am obsessed.
- Messages
- 17,884
- Location
- Carnoustie, Scotland
You are either a sadist or you do not do much cast.I love machining brass but cast iron is my favourite.
Why are they both so damn expensive though
(edit, should be masochist I think although you may be both ) I used to do a lot of hauler plates on the manual lathe and had to wear welding gauntlets whilst cutting the face tapers with the compound slide. Now I do them on the CNC and the worst part is cleaning up afterwards as cast iron is not the best for a lathe and also will set like concrete if flood coolant is used and it is not cleaned up right away.
This is the small ones I do, 13" , most now are bigger, 17" and 19"
