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Knives & rubbish?

T

tony.w

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Hi all, when i bought my Kity 1629 moulder i had a selection of knives and other tooling as in a OMAS rebate block. I have added a picture or two because i may be wrong but i think most the knives need to be in the recycling bin (balancing, safety Etc), most look to me to be re ground and have no locating pins also there are a lot of knife looking blades in the left of the picture with two fixings each and i do not appear to have a block for them? maybe someone can enlighten me. I do have two other blocks that have been used for these knives but i'm not sure how good they are they are also in one of the pictures. cuter1.jpgcuter2.jpgcuter4.jpg
 
You’re correct, a lot of those cutters are too small and dangerous to run in those Whitehill blocks. If the Whitehill blocks are in good condition and in the right hands there isn’t much really to go wrong with them, they are very versatile compared to modern pinned cutter blocks. Alternatively, if you want to be rid of them and instead pursue modern tooling, I’ll buy them off you. In fact I was using mine this morning for a short run of bespoke torus moulding.

IMG_4183.jpeg

IMG_4184.jpeg

I have no idea what those cutters with the fixing holes are for, possibly some kind of groover or sawblade?

I did a little write up on the forum a little while ago about dangerous spindle moulder tooling and also some posts on Instagram about Whitehill blocks, might be worth a read: https://www.thewoodhaven2.co.uk/threads/how-the-spindle-moulder-gained-its-notoriety.6606/


 
Hi, the information regarding the blocks is interesting i did check for equal closure and from what i can remember they were fine but i will now check in a little more detail, shame about the cutter with fixing holes as some look new. Appreciate where your coming from with versatile comment, i will have a read later this evening.
Thanks for your values comments
 
The main problem with the older style Whitehill Bolcks (No PIN Version) as stated above is when machinests put in silly little cutter knives near the end of the clamp and tighten up the nut which then forces the clamp to close on the outter edge before the inner edge and thus distorts the clamp.

I have used the old style whitehill blocks many times (still do on the odd occasion) but ensure the cutter is inserted as far back as possible in the block.
 
meccarroll said:
The main problem with the older style Whitehill Bolcks (No PIN Version) as stated above is when machinests put in silly little cutter knives near the end of the clamp and tighten up the nut which then forces the clamp to close on the outter edge before the inner edge and thus distorts the clamp.

I have used the old style whitehill blocks many times (still do on the odd occasion) but ensure the cutter is inserted as far back as possible in the block.
Click to expand...
This isn't a problem with the Whitehill block the problem is with the end user, I haven’t read the instruction that usually accompanies these products but that said the end user should have some appreciation for what they’re doing given the operation they are wanting to carry out.
 
tony.w said:
This isn't a problem with the Whitehill block the problem is with the end user, I haven’t read the instruction that usually accompanies these products but that said the end user should have some appreciation for what they’re doing given the operation they are wanting to carry out.
Click to expand...

I did pry this off eBay once if it helps.

Whitehill.jpg
 
Can you not simply bend these back with the help of a suitably prepped or fancy big copper hammer?
Presumably this was the norm thing to do, if not then something slightly more involved.

It would be interesting to see what happens when this is done more than once or twice.
Guessing there are indeed some examples with such broken/fractured/snapped heads.
 
TomTrees said:
Can you not simply bend these back with the help of a suitably prepped or fancy big copper hammer?
Presumably this was the norm thing to do, if not then something slightly more involved.
Click to expand...

I have remedied minor damage at the very edges with a polished hammer before, I don't think you'd manage to correct a completely splayed jaw though accurately enough. The best way to fix the splaying if it's not too severe is to mill the slot out with a horizontal mill with a side and face cutter, which is what Whitehill would've done if you sent the blocks in for repair.
 
I still have a collection of hand made cutters to fit a whitehill block, but the block went in the bin long ago!
That is where they should all be in my opinion. The modern safety blocks with locating pins have been a requirement for years now. I did once see a cutter come out of a whitehill block when the operator started the spindle. Luckily and rather amusingly it came out of the back of the machine chopped through the power cable running down the wall. The effect of one emerging at the front of the machine don’t bear thinking about. Spend the money and be safe!!!
 
Mike Jordan said:
Spend the money and be safe!!!
Click to expand...
But not a Chinese manufactured one ;) absolutly agree with what you say i will be purchaseing a new block but i will also be looking at the knives and chucking the too small inferior ones but the bigger ones not just yet because after in depth examination and measurments the blocks are in very good servicable order so mounted to specification i will hang onto then for now.
 
tony.w said:
But not a Chinese manufactured one ;)
Click to expand...

Definitely not, I've got a "BOY" branded pinned block that has dreadful tolerances, one side of the block has the pins 2mm off compared to the other side, if you fit the limiters on those pins they engage the work before the cutters and it doesn't cut at all.
 
Trevanion said:
Definitely not, I've got a "BOY" branded pinned block that has dreadful tolerances, one side of the block has the pins 2mm off compared to the other side, if you fit the limiters on those pins they engage the work before the cutters and it doesn't cut at all.
Click to expand...
Not good! Being a complete novice when I was starting with a moulder I went to my normal supplier and though I probably paid too much at least I got safe good quality blocks cutters and advice. The thought of a cutter getting loose at stomach height really doesn’t bear thinking about.
So @tony.w sorry to say, I don’t know if they are legal or not without pins but I certainly wouldn’t risk using them. Ian
 
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