Assy table

[DavidF]

Just posted some early pics and 3D model of lifting assy table in build. I will post more pics this week.

http://www.ncwoodworker.net/gallery/browseimages.php?c=411

 

[sapwood]

David, that looks pretty cool. And again you demonstrate an aptitude for balancing form and function. No dovetails needed here, just glue and screw.

We eagerly await project completion :mrgreen:

Speedo Sapwood

 

[DavidF]

Easy... I've done all the hard work:BangHead:

Will post full instructions with dims when it's all done

 

[Bernhard]

David

Ok, I am curious. What are you building ? What is it for?
...inquiring minds want to know!
Bernhard

 

[Travis Porter]

How are you handling the screw/lift mechanism?

 

[D L Ames]

Looks like a very interesting design David. How are you going to handle the height adjustment and locking into position once you get to the desired height?

D L

 

[DavidF]

Bernard - It's a height adjustable Assembly table. Reason being is that I need an assy table, but do not have the room for a dedicated one. This one will spend most of it's life as an outfeed table for the TS at a height of about 38". When I need to assemble something tall (think table) I can wheel it around to the bench area and lower it to 24". When I want to work on something smaller or layout drawings or similar, I can raise it to it's full height of about 45".

Travis - I am making lift mech in a scissor lift configuation powered by a geared motor with an acme lead screw. There are rollers on the two "free" arms. These roll on the top and bottom surfaces. All the guidence is by HD drawer slides.

DL - because the acme screws cannot be back driven there is no need to lock the height; it will just stay put where it stops; making it infinetely adjustable which was a requirment for the TS outfeed application. I am aiming for a load capabilty of around 250 pounds. with the gearing a 1/4 horse reversable 110v motor will do the job - got to source a motor yet - anybody got one?????

 

[RandyJ]

Looks like a great solution to the ol' space problem. I am also "space-challenged". Look forward to the finished product. Maybe I could shamelessly steal your idea?:eusa_whis
Randy

 

[DavidF]

Looks like a great solution to the ol' space problem. I am also "space-challenged". Look forward to the finished product. Maybe I could shamelessly steal your idea?:eusa_whis
Randy

Sure, no problem stealing it as long as you improve it as you go....

 

[D L Ames]

Sounds like a great plan David. I look forward to seeing the completed table and hearing your review on how well it operates.

D L

 

[DavidF]

More detailed model. will take pics this w/e

 

[Monty]

NIIICE!!!! You'll be the envy of us all with that thing! I know it's probably too late to be asking a question like this, but.... why not make the "outer" box on top, with the "inner" box on the floor? Or maybe that's what you plan to do, since it looks like you have a top drawn on the bottom... :-?

 

[DavidF]

Well Insom, that question puzzled me somewhat in the design stage and at one time I did have it that way, but it was a question of balance and C of G so decided to do it outer at the bottom in the "normal" extending mechanics sort of way.

 

[DavidF]

since it looks like you have a top drawn on the bottom... :-?

Does it?????? The two "planks" are attached to the inner, lifting box and the rollers of the scissor mech push on those. The torsion box top (not shown) attaches to the lifting box

 

[Travis Porter]

It does kind of look like a top on the bottom to me now that I look at it as well. Maybe because you have a lip on the bottom. Any reason for having a lip on the bottom?

 

[DavidF]

The Bottom, outer box is mounted on a bigger base that has casters on the bottom so that it can be wheeled about. - The real pics will explain all - I hope

 

[D L Ames]

Thanks for the additional drawing David. I can see now how you are planing to mount the motor and screw rod. I look forward to seeing the pix you plan to take this w/e. Of course you could get really high speed and post a video of the table in action like WG has on his website.:-D

D L

 

[DavidF]

Some pics from the w/e. The scissor arms are shown glued and srewed laminated from 3/4 ply.

 

[Travis Porter]

THe more I see, the more interesting it gets. I am speculating you are using full extension ball bearing drawer slides for your support. Nice touch, I hadn't considered doing that.

Are you going to have a motor for your scissor lift mechanism or will it be manual?

 

[DavidF]

THe more I see, the more interesting it gets. I am speculating you are using full extension ball bearing drawer slides for your support. Nice touch, I hadn't considered doing that.

Are you going to have a motor for your scissor lift mechanism or will it be manual?

Correct on the drawer slides; it makes the box dimensions un-important as far as fit is concerned. It will be motorized - see the last 3D model pic. The motor will drive an Acme leadscrew. However, it could easily be manual as well which would save some cash and some effort, but if I'm standing on it changing out a light tube or something a remote control box would be a nice touch!