- Joined
- May 10, 2012
- Messages
- 995
Not saying it's not a desirable feature, just saying it's nice to have and not necessary and if you're designing a vise for the home shop, maybe you don't want to add the complexity to the design.
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Vise design. Looking for suggestions, critiques.....
- Thread starter 12bolts
- Start date
- Joined
- Nov 12, 2017
- Messages
- 391
Issue in any means of alignment will be preserving that over time. How many vises operate at 75% of jaw capacity or more? While various V-types were 'the' method a long while, a more practical, secure, easy to re-do, and continually adjustable design are those with external box guides, adding flat gibs if desired.
1. Bolt on stationary jaw simplifies the bed.
2. No legitimate reason exists for not providing space for separate (ie soft) jaws, all they need is a pair of through holes. That (protruding jaw) also gives seat for a stop attachment. Adding Vee cuts is reasonable, but guaranteeing parallel & perpendicular may cause issues in garage shop facilities, soft jaws being 'adjustable', not to mention sacrificial is good justification.
3. External surfaces (top, side, back) of stationary jaw should have 1/4"-20 or favorite thread to attach longer yet stops. Plug when not in use with grub screws.
4. I'd question utility of threading full length jaw screw. What for; again consider last time a vise went from minimum to maximum opening and back. There is far more rigidity in a grinding vise style movable jaw and 1 or 2 jack-screws.
5. CRS is comparatively economical, but a little searching will turn up material with better sliding characteristics and overall strength. The bed, not the jaws, are submitted to forces required in secure clamping, next would be the threaded portion supporting the clamp screw.
6. Whatever width that block and stationary jaw, bolting them to bed, dictates the fasteners are best positioned at the 'inner face', otherwise you're building in that undesired lift factor.
7. While not final detail in vise features, IMNSHO the best feature in a milling vise is one able to clamp to table on one or both edges. This not only increases daylight for cutters, hard to beat ease of set-up to flycut instead of profiling a deeper part. With a longer part, support end, even the middle with angle plate.
1. Bolt on stationary jaw simplifies the bed.
2. No legitimate reason exists for not providing space for separate (ie soft) jaws, all they need is a pair of through holes. That (protruding jaw) also gives seat for a stop attachment. Adding Vee cuts is reasonable, but guaranteeing parallel & perpendicular may cause issues in garage shop facilities, soft jaws being 'adjustable', not to mention sacrificial is good justification.
3. External surfaces (top, side, back) of stationary jaw should have 1/4"-20 or favorite thread to attach longer yet stops. Plug when not in use with grub screws.
4. I'd question utility of threading full length jaw screw. What for; again consider last time a vise went from minimum to maximum opening and back. There is far more rigidity in a grinding vise style movable jaw and 1 or 2 jack-screws.
5. CRS is comparatively economical, but a little searching will turn up material with better sliding characteristics and overall strength. The bed, not the jaws, are submitted to forces required in secure clamping, next would be the threaded portion supporting the clamp screw.
6. Whatever width that block and stationary jaw, bolting them to bed, dictates the fasteners are best positioned at the 'inner face', otherwise you're building in that undesired lift factor.
7. While not final detail in vise features, IMNSHO the best feature in a milling vise is one able to clamp to table on one or both edges. This not only increases daylight for cutters, hard to beat ease of set-up to flycut instead of profiling a deeper part. With a longer part, support end, even the middle with angle plate.