so what am i doing wrong??

[mac1012]

http://www.hegner.co.uk/Quick-Clamp-for-Piercework


info on quick clamp two points one it says especially useful for internal cuts but dosent say anywhere advising not to use for external ones also bit lower down page it says .........


"However the Quick Clamp should be rigidly fixed in the top arm – there are rotating bearing surfaces within the quick clamp which allow the blade to pivot, maintaining the correct geometry, while being securely held. "

mark

 

[mac1012]

this nice lady here is using the quick release clamp for external cuts and if its good enough for her its good enough for me 8)

http://www.scrollsawer.com/techniques/m ... ntrol.html

have a look through all the pics some good tips scroll down her page and you will see a series of different cutting technique photos all done with the hegner quick clamp in situ internal and external, I hope to some people apart from chris maybe, that some of my advice on the quick clamp is not some wild and reckless descision to wreck my machine (homer)

I think the single clamp small sizes could be useful for very small blades less than a standard number 1 but I never gone that low

mark

 

[scrimper]

http://www.hegner.co.uk/Quick-Clamp-for-Piercework


info on quick clamp two points one it says especially useful for internal cuts but dosent say anywhere advising not to use for external ones also bit lower down page it says .........


"However the Quick Clamp should be rigidly fixed in the top arm – there are rotating bearing surfaces within the quick clamp which allow the blade to pivot, maintaining the correct geometry, while being securely held. "

mark

Except on earlier versions such as mine which are not equipped with the "rotating bearing" surfaces!

FWIW I have never used anything other than the quick/pierce clamp when using my Hegner. Because mine is not equipped with the rotating bits what I do is tighten it in the frame then loosen the top knurled knob just a little to allow a small amount of pivoting.

 

[stevebuk]

Does that mean that if the blade pivots, there is forward/backward motion on the arm. If so i wonder why people a few years ago didn't like the Delta, claiming it was too aggressive..

 

[ChrisR]

http://www.hegner.co.uk/Quick-Clamp-for-Piercework


info on quick clamp two points one it says especially useful for internal cuts but dosent say anywhere advising not to use for external ones also bit lower down page it says .........


"However the Quick Clamp should be rigidly fixed in the top arm – there are rotating bearing surfaces within the quick clamp which allow the blade to pivot, maintaining the correct geometry, while being securely held. "

mark

Mark.

Below is a paragraph extracted from my other post.

“Now before I start cutting a project and it is one that is going to need more than one blade, I make up three or four blades of required size/type with clamps on, then when the blade edge goes or it breaks, I can slip the one blade out and a new one in, within a few seconds, not loosing momentum or concentration“.


So the 5sec’s or so, is release tension, remove blunt blade, fit replacement blade, which has already had standard clamps fitted, re-tension.

A quote from your post.
"However the Quick Clamp should be rigidly fixed in the top arm – there are rotating bearing surfaces within the quick clamp which allow the blade to pivot, maintaining the correct geometry, while being securely held. "

Unless Hegner has brought out a new quick clamp, it does not have rotating bearing surfaces, it just has a rotation pad on the end of the tightening screw, to stop the blade being twisted when tightening onto the blade. The blade is then held stationary within the clamp.

I prefer to use the saw and blade clamps as Hegner intended, and will always advise on this correct method when posting, to do other only causes unnecessary confusion.

However each to their own, to use the saw in the way that suites them, but I will stick to the correct Hegner operation.

Take care.

Chris R.

 

[scrimper]

Unless Hegner has brought out a new quick clamp, it does not have rotating bearing surfaces, it just has a rotation pad on the end of the tightening screw, to stop the blade being twisted when tightening onto the blade. The blade is then held stationary within the clamp.


Chris R.

As I posted earlier mine does not even have that, mine is just a threaded bolt.
An image of the rotation pad as mentioned is discussed in this thread have-i-been-doing-it-wrong-t73070.html where Martin has placed a picture of said device.

 

[mac1012]

Chris not sure if you missed it or don't really want to see it but the quote was from the hegner website and I posted the link to the quote but in case you missed it I will post it here .......



http://www.hegner.co.uk/Quick-Clamp-for-Piercework

you can clearly see the quote on this page so in answer to your question is yes the clamp has rotating bearing I like to make sure the information I give people is correct as far as I see it ,

there seem to be a debate as to whether the older models had it ill give you that but I am just advising on my own experience maybe if someone has a quick clamp from 20 or thirty years ago its time for a new one

I emailed hegner yesterday and the tech guy replied to me this morning to say and I quote "lots of hegner owners have the quick clamp in position all of the time and this is no detriment to the cutting action or the machine

he did go on to say that the rotating bearing could wear out if you were using it for extensive amounts of cutting so it is advisable to check it periodically and replace if necessary

nowhere in the manual does it advise not to use the quick clamp for external cuts or that it is any detriment to the machine

the advise I give on here is measured and based on my experience as a hegner user , there is no evidence at all to suggest you cant use the quick clamp for external cuts and I am sure lots of experienced hegners owners do the same as testified by the hegner technician

I guess it comes down to personal preference, as for your 5 second blade changing the other 35 seconds have been spent at some other time getting the blade ready prepared in the two clamps, my post of 40 seconds was to do a complete change whilst at the machine and as I explained I don't use different size blades on one project so there is no need for me to have extra clamps with blades in position ready to change over so your 5 secs over my 40 was inaccurate

I don't have to spend time getting blades ready in different sets of clamps so whilst you are doing that I have already started cutting so your argument about flowing better dosent really stack up

anyway you say tomatoe I say tomato lets call the whole thing off as the song goes 8)

mark
,

 

[stevebuk]

While at the moment i am only using the #7 ultra reverse blade i am doing what mark does and change the blade completely from start to finish whilst at the saw, but i am thinking of making up 3/4 of these blade clamps with the #7 already in so changing would be quicker than my normal way, i could put the blades in at the end of the day when i have finished cutting in readiness for the coming day..

Simples..

 

[scrimper]

you can clearly see the quote on this page so in answer to your question is yes the clamp has rotating bearings so your original post to say I was wrong and it dosent contain them is very misleading and incorrect to any hegner owners on here , I like to make sure the information I give people is correct so I suggest you do your homework the next time you give advice and not just assume the advice I have given is wrong.

I do take exception to you suggesting that what I have given is incorrect in regards to the bearings
mark
,

Mark, I obviously can't speak for Chris but in fairness to him I did not read his post as 'suggesting' you are incorrect or anything. AFAIK Chris was/is an engineer and he was suggesting that although Hegner say the clamp has 'Rotating bearings' it is actually technically not the case, it's just a hole in the end of a bolt with an insert that can rotate? But I could be wrong? I honestly don't think he was questioning your advice.

 

[scrimper]

While at the moment i am only using the #7 ultra reverse blade i am doing what mark does and change the blade completely from start to finish whilst at the saw, but i am thinking of making up 3/4 of these blade clamps with the #7 already in so changing would be quicker than my normal way, i could put the blades in at the end of the day when i have finished cutting in readiness for the coming day..

Simples..

I normally have three blades fitted with bottom clamps fitted ready to go so to speak, normally a no1 for fine internal stuff no 3 or 5 for less fiddly internals and a no 7 or 9 for outside work, using the quick clamp it takes just a sec to change or insert the blade through a drilled hole, one can almost do it with eyes closed.

I do sometimes use a 00 blade for very fine work but they don't last long before I snap them!

 

[mac1012]

thanks scrimper I realised that I was being a bit defensive so I edited my post before anyone saw it or so I thought (you must have been quick) so apologies to chris for that but thanks for using that bit of my post you seized on I hope its not in an attempt to pour petrol on a dying ember :twisted:

I can only go on what I see on the website which says rotating bearings my original posts were not to get into an argument but merely passing on my experiences with the hegner and how I use it , which in my opinion is ok to use the way I use it

when I first got the clamp I read what it said about having the bearing so the blade can pivot and the advise to clamp it down

so that's how ive used it along with countless others

anyway I not going to write anymore on the subject people can choose what they want to do with their clamps whichever they maybe

I still stand by I not doing anything wrong or detrimental to my machine using the quick release clamp for external cuts.

 

[scrimper]

thanks scrimper I realised that I was being a bit defensive so I edited my post before anyone saw it or so I thought (you must have been quick) so apologies to chris for that but thanks for using that bit of my post you seized on I hope its not in an attempt to pour petrol on a dying ember :twisted:

No I was not pouring petrol on! My post was meant to indicate quite the opposite, in fact I was (perhaps unwisely) trying to defuse the situation and cool an issue, with hindsight I should have kept my nose out but hindsight is a wonderful thing, I imagine I have been added to your Foes list now so you won't see this post!

As for using a piece of your post to quote rather than the whole of your post; that was not something I do that was unique to your post I actually do it all the time in most posts where I quote just the relevant part, it saves the reader having to work out which bit of a post I am referring to, afraid it's a habit I picked up years ago when posting stuff on usenet.

If my post caused any offence to anyone then I apologise.

 

[martinka]

afraid it's a habit I picked up years ago when posting stuff on usenet.

A fellow usenetizen! We are a dying breed, scrimper, but so is usenet, apart from pirated stuff, porn and viruses/trojans.

 

[scrimper]

Well there you go, I thought that most on here would not know what Usenet was all about, shows how wrong I was!

I used to like Usenet very much and spent at least half of my time on-line in various groups, I learnt a great deal and hopefully in return helped others, I must admit that I haven't used Usenet for sometime, it' was good on dial-up being text based. I feel that places like facebook and twitter have largely killed Usenet off. I have to say that I don't use either Facebook or twitter as I find most of the stuff written by 'twitters' mostly puerile pointless nonsense! I did create a twitter account as my cycling club started on there but I found it just drivel and packed it in! :shock: