Parf Dogs

cliffp said:
Peter, do you have a recommendation of what to use as a spacer? Would the MFT/3 fence be suitable? If wood, which type, bearing in mind the tendency of some to warp, be soft or have other issues?
Click to expand...

Hi Cliff

The MFT fence would be great but I keep a piece of 10mm MDF cut specially for the job. My workshop does not suffer great changes in humidity and so stability is not an issue.

Just to update the possibility of the saw touching the Parf Dogs - The top (furthest from the operator) Parf should never be in the way of a TS55 - my new film will make this quite clear. The only time a Parf may touch the saw is at the start of a cut with very wide boards (from memory I think that is over 510mm for cuts across the MFT3 and 810mm for cuts along the MFT3 - again covered in the film).

I have just made up my best jig yet for cutting 20mm holes and it works brilliantly - it took 2 minutes to make and the holes are perfect - even if I say so myself!

Peter

 
RonWen said:
Hello Peter,
What am I missing?
I just did a quick layout and it appears if I trim ~16mm from two of my Parf's length (leaving them ~44mm long) my TS55 motor housing will pass over them when cutting 19mm ply, etc.  
This eliminates the need for a spacer parallel and still leaves them long enough to pass through two thicknesses of 3/4" MDF for replicating MFT tops.

What other purposes have you found that require the full 60mm original length?

I haven't trimmed mine down yet, I intend to wait until I upgrade to the TS55REQ to see if the numbers will work for it also.

Your thoughts please.  I was wrong one other time...   [unsure]

Ron
Click to expand...
Hi Ron,

I did a kitchen, not long ago, that had unusually thick solid wood worktops - 50 mm, I think. My worry has always been that people will run into other situations that might demand taller Parf Dogs. If they are created long (as now) people can always cut them down if they wish but they cannot be made longer. I have had no problems with the TS55 hitting a Parf Dog and will show this in the new video. I was probably exaggerating when I said that 5% of my cuts needed a spacer - it is probably more like 1 %.

I have used my TS55 and guide rails for doing rebate scoring (a cut on either side with the TS, perhaps a couple of extra cuts in between) and then cleaned up with the router. In thicker stock one may need the taller Parfs for such rebate work. I have not done one for may years but stair case work comes to mind.

If you are doing a cut completely through a piece of wood then the saw body is at the same height above the MFT3 (and above the Parf Dogs) regardless of the thickness of the material being cut - the saw blade will cut (say) 2mm into the top of the MFT regardless of the thickness of wood being cut and hence the saw body is always going to be in the same position in relation to the Parfs. The top Parf will not interfere with a TS55 saw cut even if the wood being cut is against it. The only chance of touching the Parf with the TS55 is at the end nearest to the operator. There is no need to use a spacer unless one is cutting stock greater than about 810 mm (the exact measurement will be in the new video). A spacer may be useful to avoid doing a cut greater than 510mm along the length of the MFT3 as opposed to across the width.

I am beginning to wish I had had a second G&T (it is 7pm here !).

Peter
 
I can imagine a low profile Parfdog, with a thread cut in its top, e.g. M8.
Then there is a Parfdog extender, with exactly the same diameter of the Parfdog itself, and with a protruding M8 thread. The extender can be screwed on top of the Parfdog to cut thicker stock.
 
New ideas are great but at the beginning it is best to keep things simple.

The new video will help.

Peter
 
CJ'60 said:
I can imagine a low profile Parfdog, with a thread cut in its top, e.g. M8.
Then there is a Parfdog extender, with exactly the same diameter of the Parfdog itself, and with a protruding M8 thread. The extender can be screwed on top of the Parfdog to cut thicker stock.
Click to expand...

The dog you imagine has been avalible from RWM for about 2 years and is now avalible from leevalley
Stainless-Steel Small Dogs, pair. 05G49.50  $14.50
You need to make the extender (I showed this in my video in my earlier post) yourself but it isn't hard and there is no need or real benefit for it to be the same diameter as the Parfdog.

I used lengths of aluminium or stainless steel tubing to make my extensions. You can also make hold-downs, that is the main focus of my video. The hold-downs are simple to make if you have an 8mm tap. All you do us get some 6mm washers and run the tap through the centre then you have the large threaded was here shown in my video. You can drill a washer out but as I used SS washers it was easier to buy the 6mm size. I don't find drilling SS easy  [wink]

short threaded dog ideas
 
Peter Parfitt said:
New ideas are great but at the beginning it is best to keep things simple.

The new video will help.

Peter
Click to expand...

When will the new video be available. My 25/32 router bit came in today and I have 4 days off work to play with my 6 long parf dogs and 6 short parf dogs!!
 
NDM said:
When will the new video be available. My 25/32 router bit came in today and I have 4 days off work to play with my 6 long parf dogs and 6 short parf dogs!!
Click to expand...

I began the work before my Parf Dogs arrived. I started at 4am again today (it is normally 6am) and will do the same tomorrow. I will do my best to get it out by tomorrow evening - if the editing goes well. We had a power cut here yesterday which did not help.

Peter
 
Peter Parfitt said:
NDM said:
When will the new video be available. My 25/32 router bit came in today and I have 4 days off work to play with my 6 long parf dogs and 6 short parf dogs!!
Click to expand...

I began the work before my Parf Dogs arrived. I started at 4am again today (it is normally 6am) and will do the same tomorrow. I will do my best to get it out by tomorrow evening - if the editing goes well. We had a power cut here yesterday which did not help.

Peter
Click to expand...

Obviously the old saying - "True talent should not be rushed!!" applies here!  [big grin]

 
Hi Everyone

I am doing a bit of preliminary editing of the new video and I do not think that I can fit the MFT3 replication in - it is partly due to space withing my (self imposed) 15 minute limit but more because I am looking for a better way to make the holes. I will produce a separate video showing my method of doing this but I am not sure when. If anyone wants some pointers how to do this then you could look at the old Parf Dog video before it is deleted in a couple of days from now.

At the moment my thoughts are that this second video could be done in about 2-3 weeks time but a woodworking chum has given me an idea of a new type of cutter that I could use which might delay that video by quite a bit. If that is the case I will amalgamate that function with the build of a mobile bench (on industrial castors) which will have an MFT style top.

I am aiming to get the main Parf Dog video up within 48 hours.

Peter
 
Got my sets of dogs yesterday.

Great product, as designed by Peter, and machined to absolute perfection by Rob Lee and his outstanding company.

But hey, what else would one expect?

;)
 
I think that it was Archimedes who said 'give me a lever long enough and I can lift the world...' well, in my work with the new Parf Dogs I will demonstrate that given a work surface big enough and with a long enough guide rail you can do perfect cuts, using the Parf Dogs, on any width or length of timber - my workshop will never be the same again.

Time for bed.

Peter
 
Lee Valley sell an accompanying bench dog that has the same boss size as the Parf Dogs. They have an 8mm thread all the way through.

I am (still) making my new mobile bench and needed a way to hold wood vertically in order to do some Domino work. I put a pair of the threaded dogs in with a knob under the bench to secure them in place. I then put a Bessey K Body Revo over them and secured it in place using a second pair of knobs (with 8mm thread). I had to use a gash piece of wood with an 8mm hole as a packing piece.

The net result is a very useful vice at the side of the bench. I used it for over an hour whilst doing all of my Domino joints and, as it is so quick to set up, and will use it again.

Peter
 

Attachments

  • D71_2802- FOG.JPG
    D71_2802- FOG.JPG
    661.8 KB · Views: 1,102
Hello,

I purchased a pair of the large and small "Parf Dogs", as soon as they were available at my favorite Festool dealer.  I have been using them everyday.  Every time I use them I think of a talented gentleman who I know vicariously through the internet, and who speaks the Queen's english in the most eloquent manner.  Somehow my woodworking experience is more pleasant as a result. 

To corroborate the words of their inventor, they are brilliant !

Brian

Fall River, Nova Scotia, Canada
 
You must log in or register to reply here.

Similar threads

W
UJK Parf Guide Mark II and loose fitting dogs
2 3
Replies
51
Views
31K
msnelling
M
Dusty.House
SOLD: Bench Dogs for Sale - Stainless-Steel Parf Dogs by Veritas
Replies
0
Views
93
Dusty.House
Dusty.House
F
3D printed self clamping bench dogs - available now.
Replies
1
Views
6K
cubevandude
C
J
New here + Qwas Rail dogs in the US?
Replies
18
Views
13K
TSO_Products
TSO_Products
T
FEIN Mini Turbo (Model 9.11.20) and Sourcing a HEPA filter
Replies
15
Views
9K
Cheese
Cheese
Back
Top