I got a used 18" Hegner variable speed saw after being frustrated by my DeWalt's inability to hold on to blades while I'm cutting. I did not like the Hegner at all.
It is a bottom feeder... but why the blade holder are loose in blade-holder holders is beyond me... it makes for inefficient blade changes and awkward procedure for fretwork. To change blades, the lower blade holder has to be removed and placed in a table-side recess and a hex-key used to affix the blade... then the blade holder is replaced in it's holder. Unless you buy a modified upper blade holder, you tighten the upper end of the blade w/the hex key. How one holds the upper blade holder in correct position, I don't know as it freely pivots forward/backward.
I don't like DeWalt's forward/backward blade motion and I attributed it to their pivot points so close the blade... but Hegner's blade also had very noticable jumps, too.
Unless you buy a modified air-blower w/flex arm, the built-in blower, believe it or not, blows right at you!
The knobs hurt my fingers... their design enables only fingertips to be used... so I cut a wood 'overknob' to act as a wrench, eg. for the table tilt adj. knob.
The table surface is tiny... 3 1/2" to the left of the blade and not too much more to the right... you need an aux. top or other supports unless cutting small pieces, eg. for intarsia.
Mine was used, so I don't know if its vibration is common... but mine at half-speed could churn butter from milk. Adv. Machinery said I must use their stand or it will vibrate... I did use their stand and it still vibrated.
The blade tension lever is not comfortable to the hand/fingers.
There are no amenities with Hegner saws... no light, no vac port, stand optional yet not an option (see above)... I saw no justification to spend the money they want for what you get. Even if it works perfectly, you get a small, basic scroll saw... nothing more.
FYI, I got a used Hawk 26" to work with after the Hegner... their blade holding concept is extremely similar, so I feel similarly about he Hawk... not worth the premium price as no features come with it (in this case, the 26" throat could be a reason to spend the money, but that's only if one is cutting projects that are that large. Here I thought, for sure, the blade being so far foward of the pivots that the blade would travel nearly perfectly up/down without the forward/backward jumps, but not so.
They both made me appreciate my DeWalt a little more... but if I were to get a new saw, I'd be looking closely at Seyco... similar design to DeWalt, but I think it might be built better... unless someone says differently.
That's my 2-cents and I'm sticking with it.
Spence