140mower
Don
On mine that can be adjusted out with any nut/jamnut under the dial. Or at least, that, is if we're both on the same page...... And I think my pages are soggy and stuck together today........ So, I may not get to the right page.
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Several Regions have held meetups already, but others are being planned or are evaluating the interest. The Ontario GTA West area meetup is planned for Saturday April 26th at Greasemonkeys shop in Aylmer Ontario. If you are interested and haven’t signed up yet, click here! Arbutus has also explored interest in a Fraser Valley meetup but it seems members either missed his thread or had other plans. Let him know if you are interested in a meetup later in the year by posting here! Slowpoke is trying to pull together an Ottawa area meetup later this summer. No date has been selected yet, so let him know if you are interested here! We are not aware of any other meetups being planned this year. If you are interested in doing something in your area, let everyone know and make it happen! Meetups are a great way to make new machining friends and get hands on help in your area. Don’t be shy, sign up and come, or plan your own meetup!
New to me Ammco 7" Metal shaper
- Thread starter Susquatch
- Start date
On mine that can be adjusted out with any nut/jamnut under the dial. Or at least, that, is if we're both on the same page...... And I think my pages are soggy and stuck together today........ So, I may not get to the right page.
I'm about ready to kill the lights, so foggy is the least of my problems.
I don't know if mine has a backlash adjustment or not. Even if it does, it prolly can't adjust out the tiny bit I need to get rid of.
Once I reamed out my little NOGA Clone indicator holder to take a regular indicator, the problem was gone. I can adjust it by half a thou if I want now.
No, I'm not putting a DRO on it....... LOL!
Downwindtracker2
Ultra Member
On mine that can be adjusted out with any nut/jamnut under the dial. Or at least, that, is if we're both on the same page...... And I think my pages are soggy and stuck together today........ So, I may not get to the right page.
That's what you get for spilling beer.
As you explore the world of shapers, I'm learning what modifications to my project shaper I should add.
On mine that can be adjusted out with any nut/jamnut under the dial. Or at least, that, is if we're both on the same page...... And I think my pages are soggy and stuck together today........ So, I may not get to the right page.
OK, so I think I have the same jam nut arrangement. Here is a photo.
These nuts totally eliminate all backlash on the screw as evidenced by the dial indicator I mounted between the clapper box and the vise.
The lead nut itself is located behind the clapper box and is not visible without disassembly. With the lock loose, I can lift the box about 10 thou. Gravity will always drop it to the lower limit. I cannot push it further down. However, there is about 2 thou of settling (almost like a viscous damper) at either end that takes a, second or two to settle out. Once settled, it will not move any further. I don't know what the damping is. Probably an oil film in the leadscrew nut. I believe that the 10 thou is all in the nut to screw backlash. At this time, I have no plans to fix it. I think it's better to learn to live with it.
Here is a photo of using the shear tool on aluminium. The feed rate is 1 click, but the depth of cut is too much as evidenced by the size of the chips. Nonetheless, it's a gorgeous mirror finish. You can see the reflection of the chips on the surface.
Ignore the hashed section. That was done while making adjustments.
Yes that is the only backlash adjustment that I know about. It only takes the backlash out of the screw to compound?? slide, there is nothing for the screw to the pivoting body, that I am aware of. Very lathe like.
That's a very nice finish! A little bondo will fix the hashed bit. LOL.
That's a very nice finish! A little bondo will fix the hashed bit. LOL.
About the hashed bit.....
In a previous test, I forgot to lock the clapper tilt. At one point it dug in and then started to dig deeper instead of feeding. I didn't notice for quite a few strokes. Don't know what would have happened with steel.....
Note to self. Its a machine. Always lock all not moving axis. ALWAYS.
140mower
Don
Whelp, at least you didn't put your finger in to stop it....... There's a bright side to every story.
Nothing quite like a little accidental experimentation, to open your eyes to what is actually possible, eh? There are a couple videos out there of big shapers dropping coiled up, red hot chips, into a box placed on the shop floor to catch them. The chips look like Valve Springs....
As hobbyists, we tend to run our gear a lot lighter than someone did if they were trying to keep the foreman or boss, from breathing down their neck. I have run a couple machines that had meters on them with green, yellow, and red zones on them, denoting the load related to how hard you are working it, and frankly, several of them scared the crap out of me, well before I started to hit the Yellow, but I have read guys that said if they were not in the top end of the yellow, that they were at risk of being fired for low production...
This relates to the supposed 'optimum' speeds and feeds in the manuals. These were arrived at in order to make the most return on investment (wages, machine costs, overhead, depreciation, etc.) in a commercial shop, not to be able to make the best part possible.
Slow, in OUR case, is GOOD!