Buy a bike vise, at your price range.
Mount the bike vise to a DIY wooden sine plate.

Now you can make the bow tilt forwards/backwards as accurate as you can measure angles.
If you want the riser ABSOLUTELY dead plumb, cannot beat a plumb bob (hang a string from the ceiling with a weight).
Now you adjust the DIY wooden sine plate (two pieces of plywood and a piano hinge) to get the limb pockets parallel to the hanging string (plumb bob). Now you have the most accurate reference for vertical, cuz nothing beats gravity.

BUT, what about 2nd axis, I gots to tilt the bow perfectly left to right.
If I only have ONE sine plate, I can only tilt front - back?

Then, build TWO sine plates...you need TWO piano hinges, a hack saw, and 4 sets of plywood.
The UPPER sine plate, will give you front to back angle adjustment....north-south adjustment.

The LOWER sine plate (rotated 90 degrees to the upper flapper), points east-west, and now you can adjust
the entire she-bang left to right, for 2nd axis adjustment. Hang a second plumb bob to check that you have zero sideways tilt on the limb pockets.

 

The UPPER knob will lift the upper platform and swing the entire upper platform left to right.
The LOWER knob will swing the lower platform front to back.

Buy the cheapest bike vise you can find on Amazon,
and bolt the bike vise to a piece of plywood. Attach a hinge, to connect the top piece of plywood to a lower piece of plywood. Clamp the lower piece of plywood to the workbench, and now you have a ONE direction bow vise
that will adjust your bow for forwards and backwards tilt.

You can shim the left edge of the plywood on the workbench, to adjust for left to right tilt,
using washers, sheets of paper, thin strips of wood. CRUDE, but cheap and will do whatever the Ram Micro Bow vise can do.

 

https://www.amazon.com/Conquer-Bicycle-Mount-Repair-Stand/dp/B00KXFI1N0/ref=sr_1_10?crid=2K3ICVBW1EVU6&keywords=bicycle+vise&qid=1641074277&sprefix=bicycle+vise,aps,135&sr=8-10 Just ordered this yesterday. Will find out how well it works. I like the fact that I can mount the bracket and be able to remove the vise when not in use.

 

This so much! I'm sure I'm not alone in that I'd been doing this for years before it became something that was really discussed in the DIY community but it was so simple of a solution no one really considered sharing it. My dad is a huge cycling enthusiast and way back I commandeered a Spin Doctor pro bike stand which is actually the kind that you DON'T want to use. There's a good many out there that while allowing for full 360degrees of rotation, the positions are predetermined every 10 degrees or so which prevents fine adjustments. I'd also recommend getting one like is linked here that can be securely mounted to a solid surface. I found trying to use the stand style it's quite easy to lose any fine adjustment if accidentally bumping it.

 

PSE makes a tool that threads into your stabilizer hole instead of clamping anywhere. It also has threaded holes to mount your sight to for 3rd axis leveling. I bought one for $100 but haven't used it yet.

It's $125 on Amazon. Search PSE Bow Tuning Fixture.



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I
Ive wondered about that jig. Looks simple and effective

 

I am about to buy the PSE tuning fixture as well and if you use a lock washer with a flat washer on stabilizer mount side I am sure there won't be any spinning issues. Not to mention you have built in bubbles and can adjust the axis on a sight with the mounting holes on the vise, ingenious. Cheapest I found was $125 which seems to be the average price for this mount and the cheapest OMP I found was $188.

 

Good info

 

I bought a cheap hobby Vice from harbor freight and took it off the suction cup mount and mounted it to an old computer holder that was heavy duty and has 3 or 4 pivot points, will take some pics this evening

 

You could probably make your own

 

Made mine for less than $10.00 from scrap metal.

 

Yep, been running one like this for a while now. It has served me well. I am always tinkering, so I just wanted to try something different. That is why I ordered the bike vise. Got it today. So far I like it. Just slip the arm out of the bracket when finished and store it.

 

https://www.archerytalk.com/threads/stanley-vise.6259579/?post_id=1116181836#post-1116181836