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Main Boards => The Bowyer's Bench => Topic started by: Theolithic71 on May 01, 2017, 01:10:00 AM

Title: My lam grinding jig
Post by: Theolithic71 on May 01, 2017, 01:10:00 AM

Thought this might help some of you who dont have all the right tools for making bows.  

Here's a video of my lam grinding jig for my spindle sander.


   Lam Grinding Jig (https://youtu.be/uAjNjY4a5Vg)  

To be clear, I'm doing it this way because I can't spend  $700 on a thickness sander.

I've made 3 bows with it so far.  Enjoy!

Ted Snider

Title: Re: My lam grinding jig
Post by: fujimo on May 01, 2017, 01:06:00 PM

awesome!! nice neat build!

Title: Re: My lam grinding jig
Post by: Morning Star on May 02, 2017, 09:38:00 AM

Nice job!

Title: Re: My lam grinding jig
Post by: Theolithic71 on May 02, 2017, 11:27:00 PM

Thanks fellows.

Title: Re: My lam grinding jig
Post by: on May 03, 2017, 08:52:00 AM

Pretty cool... Nice tool...  I would think if you go from a turnbuckle to a single bolt it would increase on your precision...

Title: Re: My lam grinding jig
Post by: Pago on May 03, 2017, 04:08:00 PM

You sure make it look easy.

Title: Re: My lam grinding jig
Post by: Theolithic71 on May 03, 2017, 11:05:00 PM

Quote

Originally posted by Shredd:
Pretty cool... Nice tool...  I would think if you go from a turnbuckle to a single bolt it would increase on your precision...

You're probably right. I can adjust to 0.001 increments now though.  Good 'nuff for me.

Title: Re: My lam grinding jig
Post by: Theolithic71 on May 03, 2017, 11:08:00 PM

By the way, folks...

The video I posted is "unlisted" on youtube.  You can only get to it if you have the link.  I've posted this for TradGangers only.

Title: Re: My lam grinding jig
Post by: on May 04, 2017, 10:05:00 PM

Well if you are getting .001", You are good to go...

   On my rig a half a turn will get you .005"...  Just curious... How much of a turn will get you .001"??

Title: Re: My lam grinding jig
Post by: Theolithic71 on May 04, 2017, 11:35:00 PM

I don't need to turn it much for .001.  Less than a quarter for sure.

The fence is traveling in an arc and the dial indicator is not directly in line with the drum.  When I'm getting close, I measure after every pass.  When I have less than .005 to go, I just do additional passes without moving my fence.

Title: Re: My lam grinding jig
Post by: on May 05, 2017, 05:22:00 AM

It's a nice rig, Ted...  Where did you get the aluminum and what is it mainly used for??

Title: Re: My lam grinding jig
Post by: Theolithic71 on May 05, 2017, 12:50:00 PM

You can find it on the internet.  Search "T-slotted extrusion"

It's basically erector set for adults.  You make whatever you want with it.

Title: Re: My lam grinding jig
Post by: on May 06, 2017, 04:34:00 AM

Sweet...  Learn something new every day...  I am sure I will have a use for this stuff somewhere down the road...   Thanks...

Title: Re: My lam grinding jig
Post by: Bubbadooz on May 12, 2017, 01:04:00 PM

Looks pretty good I like it!

Title: Re: My lam grinding jig
Post by: Mad Max on May 12, 2017, 01:33:00 PM

I like you set up.
You did not have to spend a lot of money.
Nice
Try 2 C clamp on the left bar and see if your parallel Lams measure better.
Sweet