-
Welcome back Guest! Did you know you can mentor other members here at H-M? If not, please check out our Relaunch of Hobby Machinist Mentoring Program!
DIY Power Scraper
- Thread starter kdtop
- Start date
- Joined
- Sep 20, 2020
- Messages
- 347
Also, you can change the stroke on them. the guides are hardened and they are varispeed, except the 7el.
I just watched your video on making the power scraper and decided to try and make my own. I just bought a Harbor Freight Hercules model and I should have done more research because I discovered that the ring gear leaves little material for adding a sliding mechanism to adjust the stroke. This includes the Chicago Electric, Bauer, and Hercules models. I also own a cheap Craftsman sawzall that I bought a few years ago and I discovered that it shares the same mechanism as the Harbor Freight sawzalls.
Maybe we should put together a list of what sawzall brands have a mechanism that is capable of being modified as a power scraper. I will get the model numbers of my sawzalls and post them here. I should have taken pictures of the mechanism before I put it back together.
I also have a very old Milwaukee Sawzall that utilizes the same mechanism as the Biax but is not easily modified for an adjustable stroke. It could be done but to change the stroke the entire front end of the saw must come apart.
I also have a very old Milwaukee Sawzall that utilizes the same mechanism as the Biax but is not easily modified for an adjustable stroke. It could be done but to change the stroke the entire front end of the saw must come apart.
I hope you were able to get it back together to return it!
I had a little trouble figuring out how to put back together the blade quick disconnect but got it back together with no scratches or extra screws lol. Ill be returning it this week and then hopefully find one like you got on Ebay. I like the way your model sawzall is made. It makes access to adjusting the throw much easier. A lot of the versions require a lot of disassembly to get to it.
LOL! Glad you got it back together.
I was going to see if I could find one for you on Ebay.
DON'T use this one: https://www.ebay.com/p/1000058192?iid=164882082360 because this parts diagram https://www.ereplacementparts.com/m...114-stroke-sawzall-parts-c-131_5093_7759.html shows it doesn't have a scotch yoke.
This one: https://www.ebay.com/itm/363409587985?hash=item549ce63f11:g:Hs4AAOSwYl9grA-i Looks to be about $50 with shipping, and the parts diagram: https://www.ereplacementparts.com/dewalt-dw303-type-heavy-duty-recip-saw-parts-c-1009_1164_2678.html seems to show a scotch yoke.
Best wishes,
Kevin
Thank you for posting the Dewalt and the parts diagram. I searched Ebay for parts for the Dewalt DW303 and found a reciprocating assembly and discovered It is identical to yours. I found another DW303 sawzall that looks like it was used once and made an offer. Hopefully they accept.
So we can add the Dewalt DW303 to the list of candidates.
The Milwaukee that you listed to stay away from is actually like my ancient Milwaukee except it has (2) wobble plates similar to the Biax except with one. Again, it would require extensive modifications to make the throw adjustable.
Hopefully other members will find this info useful.