Klemm said:
with all the discussion about parallel guides, is there anything not satisfactory about the Woodpeckers system other than wishing for lower prices? Would like to hear feedback from one of the actual WP Onetime Parallel Guide users.
I'm curious too. Specifically I'm interested to know how the extendable stuck works out given its in so many pieces.
What id really like to do is take some measurements from the two different systems and compare accuracy. The way they both attach to the rail is different in concept in how they locate and square themselves to the track.
Seneca uses a slot that captures the extrusion slot on the outside profile of it.
Woodpeckers uses the inside of the slot to align with a small tapered profile.
Between the two, the WP design should locate better however the extrusion slot may begin to widen from over tightening (or damage created by clamps or something like them that deforms it from the inside).
If the Seneca version were machined with tight tolerances it would locate just as well but instead protect the integrity of the extrusion shape. The same is true for its forms ability to locate if the channel shape becomes deformed inward.
Now to how the brackets attach to the "sticks". Seneca fits inside a machined pocket in the bracket which should ensure its attached correctly (unless the slot is way over sized). They use hex button cap screws that require an Allen wrench. PITA unless you keep them handy but very hard to strip. Head shape has no locating properties so they depend on the hole to do the dirty work.
WP's is captured by only the bolts and t-nuts into the double slots in the extrusion (stick). Technically having only two t-bolts next to each other won't guarantee the stick to be straight. Three would do better but still rely on the t-bolts and how tightly they fit the slot and the hope that the screws pull straight. Screws on the WP are Phillips counter sink machine screws. By nature of the design, the screws attempt to self locate but may not be perfect if the fastener below isn't allowed to seat squarely.
One is red...the other is black...