Parf Guide System Review

[DiscoStu]

I've not test my dust extraction as yet but here are a couple of photos of mine:

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[Stone Message]

Hi Stuart,

That looks like it should work okay. I assume that on the side that we cannot see there are gaps for the air to flow in?

Peter

 

[DiscoStu]

Hi Peter, no not currently. I did think about it but thought I'd see how it goes without. I would assume it will need some holes to clear debris until the hole is drilled through at which point there will be airflow.

I might get chance to have a play tomorrow.

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[Stone Message]

I think that you might need a hole on the far side to get some air flow before the 20 mm cutter breaks through. Otherwise the debris will build up around the cutter and no air can flow past it as there is nowhere for the air to get into the cutting chamber.

Peter

 

[andygiddings]

What I did with mine for dust collection was hold the end of the hose next to the jig. Once the jig is in place, it's a one handed operation to cut the 20mm hole which leaves the other hand free to hold the hose. Peter, as I recall, this is also what you did in one of your Parf Guide videos?

 

[Stone Message]

What I did with mine for dust collection was hold the end of the hose next to the jig. Once the jig is in place, it's a one handed operation to cut the 20mm hole which leaves the other hand free to hold the hose. Peter, as I recall, this is also what you did in one of your Parf Guide videos?

Yes, it is the method that I have used (and shown) in all of my work with the PGS. From now on I will use this simple home made accessory as it makes the process even easier.

Peter

 

[squarecut]

Here is my entry for PGS dust collection.
I had been working on this prior to [member=43879]DiscoStu[/member] posting his version - seems we both are of the same mind.
I have tested it and it works flawlessly. I have named it the PGS Dust Extraction Shoe (just to be different).
I had some orange paint available so I thought why not give it some color - too bad it is not a good match to UJK Technology orange.

 

[Z48LT1]

V. interesting.

A pic of the underside?

Cheers - Gary

 

[Stone Message]

Here is my entry for PGS dust collection.
I had been working on this prior to [member=43879]DiscoStu[/member] posting his version - seems we both are of the same mind.
I have tested it and it works flawlessly. I have named it the PGS Dust Extraction Shoe (just to be different).
I had some orange paint available so I thought why not give it some color - too bad it is not a good match to UJK Technology orange.

Simply brilliant and I am sure that some of the right colour orange could be found for this.

Peter

 

[squarecut]

[member=62778]Z48LT1[/member]
As requested - photo of underside

 

[DiscoStu]

Love it, much tidier than mine. I've been waiting to visit Halfords to get some metallic orange so very much on the same page.

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[Stone Message]

[member=62778]Z48LT1[/member]
As requested - photo of underside

The only question for [member=26002]squarecut[/member] is...

Does the dust extraction work well enough as it is split between both holes at the same time - so, presumably, that is half the suck ?

Peter

 

[DiscoStu]

I guess there is always a solution to that in the form of a thing called a parf dog!

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[squarecut]

[member=11196]Peter Parfitt[/member]
Your observation about possible 50% loss of suction via the second chamber orifices being open led me to perform a test both ways.
With both chambers open there was a slight loss of suction, however drill shavings were completely removed from the work surface.
With the unused chamber sealed off with tape a stronger pull of air could be felt at the infeed air opening. Obviously, this was not a scientific test with instrumentation. To err on the safe side & eliminate the possibility of unremoved debris fouling the 20 mm boring bit, I decided to augment my DES (Dust Extraction Shoe) with a 90 degree closure segment affixed with rare earth magnets.
Many thanks for your alerting me to the possibility of reduced suction. With your single chamber device, it precluded the loss of suction issue. You obviously had that in mind when designing your unit. See attached photos.

 

[Stone Message]

[member=11196]Peter Parfitt[/member]
Your observation about possible 50% loss of suction via the second chamber orifices being open led me to perform a test both ways.
With both chambers open there was a slight loss of suction, however drill shavings were completely removed from the work surface.
With the unused chamber sealed off with tape a stronger pull of air could be felt at the infeed air opening. Obviously, this was not a scientific test with instrumentation. To err on the safe side & eliminate the possibility of unremoved debris fouling the 20 mm boring bit, I decided to augment my DES (Dust Extraction Shoe) with a 90 degree closure segment affixed with rare earth magnets.
Many thanks for your alerting me to the possibility of reduced suction. With your single chamber device, it precluded the loss of suction issue. You obviously had that in mind when designing your unit. See attached photos.

Well done.

If you look carefully at the start of my video for the dust port you will see a clear piece of Perspex which I bent to almost exactly the shape of the top of your dust port. It was part of one of my early efforts and was going to be mentioned but it had to be removed to cut the length of the video down. That design had two places for the hose to be connected and would have had a central divider inside so that the whole of the vacuum was applied to the particular port needed.

I had to do a double bend in the Perspex in order to get the height to allow the sloping face to be long enough to have the 35 mm holes in it for the hose end. I decided it was too difficult for people to make as it needed a hot air gun and some forming tools.

I like your finished design.

Peter

 

[squarecut]

I am presently working on a portable dual track cutting station & a 3 section clamping/assembly table which when completed will have me drilling a total of over 275 20mm holes. I have completed the dual track station & currently working on the assembly table. My constant companion Arthur-Itus is rearing his ugly head when I hold the 3mm guide bushing with two fingers while drilling holes. So I came up with a bushing holder to overcome the issue. It occurred to me that others out in FOG land may be experiencing the same problem so here are a few photos.

 

[Stone Message]

Arthur visits me most days as well !

I really like that idea. May I use a picture of it in a video at some time please? If so, please PM me your email address and what name I can use for you.

Cheers.

Peter

 

[squarecut]

While working on my portable cutting station I realized that I wanted to add a 20mm hole to a row but had neglected to drill the requisite 3mm hole in that end column. Annoyed that I had not heeded the advice of [member=11196]Peter Parfitt[/member] regarding carefully mapping out the 3mm hole pattern to allow for future additional 20mm holes, I set about figuring out a way to achieve the extra 20mm hole.

I came up with what I have named the "Oops Stick". I made it out of a 2mm thick piece of hard maple, 34mm wide by 635mm in length. Using a Parf stick I drilled seven 3mm holes & then with the guide block, enlarged four holes to 20mm and now I am able to add additional 3mm holes to any row of 20mm holes that I neglected to plan out properly. A proper "Oops Stick" should be made of steel for endurance as this one made of maple will have a relatively short life.

This might prove to be a valid accessory to the Parf Guide System that Axminster might consider. It would not require any engraved measurement scales on it and quite possibly would be a welcome addition to users of the PGS as I am positive I am not the only PGS user who has said "Oops" when producing their creation.

 

[live4ever]

Very clever and I'm sure many of us will benefit from this idea!  Failing to plan ahead sounds right up my alley.

On another note, might I suggest renaming the "Oops Stick" to "Barf Stick?"  (Sorry Peter, we're not known for our clever wit this side of the pond...mainly crude low-hanging fruit is our style).  [embarassed]

 

[HarveyWildes]

While working on my portable cutting station I realized that I wanted to add a 20mm hole to a row but had neglected to drill the requisite 3mm hole in that end column. Annoyed that I had not heeded the advice of [member=11196]Peter Parfitt[/member] regarding carefully mapping out the 3mm hole pattern to allow for future additional 20mm holes, I set about figuring out a way to achieve the extra 20mm hole.

I came up with what I have named the "Oops Stick". I made it out of a 2mm thick piece of hard maple, 34mm wide by 635mm in length. Using a Parf stick I drilled seven 3mm holes & then with the guide block, enlarged four holes to 20mm and now I am able to add additional 3mm holes to any row of 20mm holes that I neglected to plan out properly. A proper "Oops Stick" should be made of steel for endurance as this one made of maple will have a relatively short life.

This might prove to be a valid accessory to the Parf Guide System that Axminster might consider. It would not require any engraved measurement scales on it and quite possibly would be a welcome addition to users of the PGS as I am positive I am not the only PGS user who has said "Oops" when producing their creation.

[member=11196]Peter Parfitt[/member], is the 3mm bushing exactly 20mm on the small diameter end?  If so, you could just drill all 7 holes a 20mm and put in the 3mm bushing.  That way there would be no 3mm holes to wear out.